2016-09-23  Filip Pizlo  <fpizlo@apple.com>

        Need a store-load fence between setting cell state and visiting the object in SlotVisitor
        https://bugs.webkit.org/show_bug.cgi?id=162354

        Reviewed by Mark Lam.
        
        Fix this on x86-32.

        * wtf/Atomics.h:
        (WTF::x86_ortop):

2016-09-23  Caitlin Potter  <caitp@igalia.com>

        [JSC] Implement parsing of Async Functions
        https://bugs.webkit.org/show_bug.cgi?id=161409

        Reviewed by Yusuke Suzuki.

        * wtf/FeatureDefines.h:

2016-09-23  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r206314, r206316, and r206319.
        https://bugs.webkit.org/show_bug.cgi?id=162506

        These changes broke various builds (Requested by ryanhaddad on
        #webkit).

        Reverted changesets:

        "Need a store-load fence between setting cell state and
        visiting the object in SlotVisitor"
        https://bugs.webkit.org/show_bug.cgi?id=162354
        http://trac.webkit.org/changeset/206314

        "Unreviewed, fix cloop."
        http://trac.webkit.org/changeset/206316

        "Unreviewed, fix all other builds."
        http://trac.webkit.org/changeset/206319

2016-09-23  Carlos Garcia Campos  <cgarcia@igalia.com>

        REGRESSION(r194387): Crash on github.com in IntlDateTimeFormat::resolvedOptions in C locale
        https://bugs.webkit.org/show_bug.cgi?id=162139

        Reviewed by Michael Catanzaro.

        Handle the case of "C" or "POSIX" locale and use "en-US" as default. That matches what ICU and other ports do,
        as well as what layout tests expect (some tests like js/intl-collator.html pass in the bots only because we use
        en-US as system locale in those bots).

        * wtf/PlatformUserPreferredLanguagesUnix.cpp:
        (WTF::platformLanguage):

2016-09-22  Filip Pizlo  <fpizlo@apple.com>

        Need a store-load fence between setting cell state and visiting the object in SlotVisitor
        https://bugs.webkit.org/show_bug.cgi?id=162354

        Reviewed by Mark Lam.
        
        Fix this on x86-32.

        * wtf/Atomics.h:
        (WTF::x86_ortop):

2016-09-22  Filip Pizlo  <fpizlo@apple.com>

        Fences on x86 should be a lot cheaper
        https://bugs.webkit.org/show_bug.cgi?id=162417

        Reviewed by Mark Lam and Geoffrey Garen.
        
        It turns out that:
        
            lock; orl $0, (%rsp)
        
        does everything that we wanted from:
        
            mfence
        
        And it's a lot faster. When I tried mfence for making object visiting concurrent-GC-TSO-
        friendly, it was a 9% regression on Octane/splay. But when I tried ortop, it was neutral.
        So, we should use ortop from now on.
        
        This part of the change just affects our Atomics. I also changed this in the JITs.

        * wtf/Atomics.h:
        (WTF::x86_ortop):
        (WTF::storeLoadFence):
        (WTF::x86_mfence): Deleted.

2016-09-21  Alexey Proskuryakov  <ap@apple.com>

        Rolling out r206244, as it caused flaky crashes on tests.
        Was: Correct uses of 'safeCast'

        * wtf/StdLibExtras.h:
        (WTF::safeCast):

2016-09-21  Keith Miller  <keith_miller@apple.com>

        Fix build for future versions of Clang.
        https://bugs.webkit.org/show_bug.cgi?id=162346

        Reviewed by Filip Pizlo.

        This fixes issues with the WebCore build where inline
        template-class function definitions are marked as exported. This
        genereates a weak external symobl that our build does not like.

        * wtf/text/StringImpl.h:

2016-09-20  Brent Fulgham  <bfulgham@apple.com>

        Correct uses of 'safeCast'
        https://bugs.webkit.org/show_bug.cgi?id=162301
        <rdar://problem/28343658>

        Reviewed by Antti Koivisto.

        * wtf/StdLibExtras.h:
        (WTF::safeCast): RELEASE_ASSERT on overflow.

2016-09-21  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r206222 and r206227.
        https://bugs.webkit.org/show_bug.cgi?id=162361

        "broke the windows build" (Requested by keith_mi_ on #webkit).

        Reverted changesets:

        "Fix build for future versions of Clang."
        https://bugs.webkit.org/show_bug.cgi?id=162346
        http://trac.webkit.org/changeset/206222

        "Attempt to fix windows build after r206222."
        http://trac.webkit.org/changeset/206227

2016-09-21  Keith Miller  <keith_miller@apple.com>

        Fix build for future versions of Clang.
        https://bugs.webkit.org/show_bug.cgi?id=162346

        Reviewed by Filip Pizlo.

        This fixes issues with the WebCore build where inline
        template-class function definitions are marked as exported. This
        genereates a weak external symobl that our build does not like.

        * wtf/text/StringImpl.h:

2016-09-20  Alex Christensen  <achristensen@webkit.org>

        Require WTFMove for String::adopt
        https://bugs.webkit.org/show_bug.cgi?id=162313

        Reviewed by Yusuke Suzuki.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::removeCharacters):
        (WTF::StringImpl::simplifyMatchedCharactersToSpace):
        (WTF::StringImpl::adopt):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::adopt):
        * wtf/text/WTFString.h:
        (WTF::String::adopt):

2016-09-20  Filip Pizlo  <fpizlo@apple.com>

        Make MarkedBlock state tracking support overlapped allocation and marking state
        https://bugs.webkit.org/show_bug.cgi?id=161581

        Reviewed by Geoffrey Garen.
        
        The main change here is to bring back FastBitVector.cpp, so that I could outline some
        large slow path functions. This also adds some utilities, like atomicSetAndCheck() and
        isEmpty(). The GC uses these.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FastBitVector.cpp: Added.
        (WTF::FastBitVectorWordOwner::setEqualsSlow):
        (WTF::FastBitVectorWordOwner::resizeSlow):
        * wtf/FastBitVector.h:
        (WTF::FastBitVectorWordOwner::operator=):
        (WTF::FastBitVectorWordOwner::resize):
        (WTF::FastBitVectorImpl::isEmpty):
        (WTF::FastBitVector::atomicSetAndCheck):
        (WTF::FastBitVector::operator[]): Deleted.

2016-09-20  Jonathan Bedard  <jbedard@apple.com>

        Undefined behavior: Left shift negative number
        https://bugs.webkit.org/show_bug.cgi?id=161866

        Reviewed by Keith Miller.

        Left shifting a negative number is undefined behavior in C/C++, although most implementations do define it. Explicitly clarifying the intended behavior due to shifting negative number in some cases.

        * wtf/text/Base64.cpp:
        (WTF::base64EncodeInternal): Changed signed character to unsigned when shifting.
        (WTF::base64Encode): Ditto.
        (WTF::base64URLEncode): Ditto.
        (WTF::base64DecodeInternal): Ditto.
        * wtf/text/Base64.h: Ditto.
        (WTF::SignedOrUnsignedCharVectorAdapter): Rebuilt to stop using union as a bitwise_cast.
        (WTF::ConstSignedOrUnsignedCharVectorAdapter): Ditto.

2016-09-19  Daniel Bates  <dabates@apple.com>

        Remove ENABLE(TEXT_AUTOSIZING) automatic text size adjustment code
        https://bugs.webkit.org/show_bug.cgi?id=162167

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2016-09-14  Jer Noble  <jer.noble@apple.com>

        [media-source] fix imported/w3c/web-platform-tests/media-source/mediasource-duration.html
        https://bugs.webkit.org/show_bug.cgi?id=161999

        Reviewed by Eric Carlson.

        The mediasource-duration.html test tries to set the duration of a MediaSource to a double value
        (5.0), then some work happens and the duration is set to a media time (12533/2500, or 5.0132).
        The test then tries to set that value as the duration, converted from a media time to a double,
        and asserts that no duration change event is fired.  But because the floating point value and the
        media time value are ever so slightly different, this round-tripping fails.

        Fix this bug in MediaTime by, when one side or the other of a comparison is a floating point
        MediaTime, convert both sides to doubles and run the comparison against those values. This preserves
        the transitive equality of doubles <-> MediaTimes.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::compare):

2016-09-16  Anders Carlsson  <andersca@apple.com>

        Fix isValidEnum to work with older versions of GCC
        https://bugs.webkit.org/show_bug.cgi?id=162065

        Reviewed by Michael Catanzaro.

        Use the ternary operator instead of a more complex function body.

        * wtf/EnumTraits.h:

2016-09-15  JF Bastien  <jfbastien@apple.com>

        TextBreakIterator: unconvolute character break cache
        https://bugs.webkit.org/show_bug.cgi?id=162001

        Reviewed by Michael Saboff.

        Simplify the one-element cache.

        Added here (fixed a bit after): https://bugs.webkit.org/attachment.cgi?id=144118&action=prettypatch
        Updated to never use a lock, and always use weak cmpxchg here: https://bugs.webkit.org/attachment.cgi?id=261719&action=prettypatch

        It's just trying to reduce the number of times it calls into ICU
        to initialize a UBRK_CHARACTER. The implementation keeps a
        one-element cache of the latest used one, which threads can
        optimistically grab. Failure is fine (just create a new one), same
        for failure to cache (just destroy it), but the logic is odd and
        you technically need release / acquire semantics because the
        UBRK_CHARACTER creation's store need to be visible on acquisition
        (but realistically it was created and then used and *then* cached,
        so it's probably been long ago enough that read reorders never
        manifested).

        Using exchange directly achieves this without the headache.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::getNonSharedCharacterBreakIterator):
        (WTF::cacheNonSharedCharacterBreakIterator):
        (WTF::NonSharedCharacterBreakIterator::NonSharedCharacterBreakIterator):
        (WTF::NonSharedCharacterBreakIterator::~NonSharedCharacterBreakIterator):
        (WTF::compareAndSwapNonSharedCharacterBreakIterator): Deleted.

2016-09-15  Keith Miller  <keith_miller@apple.com>

        Pragma out undefined-var-template warnings in JSC for JSObjects that are templatized
        https://bugs.webkit.org/show_bug.cgi?id=161985

        Reviewed by Alex Christensen.

        Fix WTF_EXPORT_PRIVATE for an inline member function. This would
        generate a weak export.

        * wtf/MetaAllocator.h:
        (WTF::MetaAllocator::getLock):

2016-09-14  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r205933 and r205936.
        https://bugs.webkit.org/show_bug.cgi?id=162002

        broke the build (Requested by keith_miller on #webkit).

        Reverted changesets:

        "Pragma out undefined-var-template warnings in JSC for
        JSObjects that are templatized"
        https://bugs.webkit.org/show_bug.cgi?id=161985
        http://trac.webkit.org/changeset/205933

        "Unreviewed, fix the Windows build."
        http://trac.webkit.org/changeset/205936

2016-09-14  Keith Miller  <keith_miller@apple.com>

        Pragma out undefined-var-template warnings in JSC for JSObjects that are templatized
        https://bugs.webkit.org/show_bug.cgi?id=161985

        Reviewed by Geoffrey Garen.

        Fix WTF_EXPORT_PRIVATE for an inline member function. This would
        generate a weak export.

        * wtf/MetaAllocator.h:
        (WTF::MetaAllocator::getLock):

2016-09-14  JF Bastien  <jfbastien@apple.com>

        Atomics on ARM don't require full-system fencing, and other minutiae
        https://bugs.webkit.org/show_bug.cgi?id=161928

        Reviewed by Geoffrey Garen.

        Add cmpxchg versions with both success and failure memory
        ordering. In some interesting cases we can craft code which needs
        barriers which aren't as strong.

        weakCompareAndSwap is super dubious, its 3 uses seem
        questionable... but for now I'm just adding debug asserts.

        Rename armv7_dmb* functions to arm_dmb* because they apply to v7
        and v8 (or more precisely; to ARMv7's ARM and Thumb2, as well as
        ARMv8's aarch32 A32/T32 and aarch64).

        Use inner-shareability domain for ARM barriers instead of
        full-system. This is what C++ uses.

        The default case for barriers simply used a compiler barrier. This
        is generally wrong, e.g. for MIPS.

        * wtf/Atomics.h:
        (WTF::Atomic::compareExchangeWeak): offer two-order version
        (WTF::Atomic::compareExchangeStrong): offer two-order version
        (WTF::weakCompareAndSwap): a few assertions
        (WTF::arm_dmb): rename since it applies to ARMv7 and v8; make it innser-shareable
        (WTF::arm_dmb_st): rename since it applies to ARMv7 and v8; make it innser-shareable
        (WTF::loadLoadFence): incorrect generally
        (WTF::loadStoreFence): incorrect generally
        (WTF::storeLoadFence): incorrect generally
        (WTF::storeStoreFence): incorrect generally
        (WTF::memoryBarrierAfterLock): incorrect generally
        (WTF::memoryBarrierBeforeUnlock): incorrect generally
        (WTF::armV7_dmb): Deleted.
        (WTF::armV7_dmb_st): Deleted.

2016-09-14  JF Bastien  <jfbastien@apple.com>

        Alwasys inline atomic operations
        https://bugs.webkit.org/show_bug.cgi?id=155371

        Reviewed by Geoffrey Garen.

        Fixes "build fails with memory model cannot be stronger than
        success memory model for ‘__atomic_compare_exchange’".

        Pre-5 revisions of GCC at Os only generated an error message
        related to invalid failure memory ordering. The reason is that
        libstdc++ tries to be clever about enforcing the C++ standard's
        clause [atomics.types.operations.req] ¶21 which states:

            Requires: The failure argument shall not be
            `memory_order_release` nor `memory_order_acq_rel`. The failure
            argument shall be no stronger than the success argument.

        It fails at doing this because its inlining heuristics are
        modified by Os, and they're not quite as dumb as O0 but not smart
        enough to get to the good code at O1. Adding ALWAYS_INLINE fixes
        the silliness at Os, leaves O1 great, and makes O0 slightly less
        bad but still pretty bad.

        The other good news is that I'm going to get this particular
        problem fixed in the version of C++ which will come after C++17:

        https://github.com/jfbastien/papers/blob/master/source/P0418r1.bs

        While we're at it we should always inline all of these wrapped
        functions because the generated code is horrendous if the memory
        order isn't known at compile time.

        * wtf/Atomics.h:
        (WTF::Atomic::load):
        (WTF::Atomic::store):
        (WTF::Atomic::compareExchangeWeak):
        (WTF::Atomic::compareExchangeStrong):
        (WTF::Atomic::exchangeAndAdd):
        (WTF::Atomic::exchange):

2016-09-13  Michael Saboff  <msaboff@apple.com>

        Promises aren't resolved properly when making a ObjC API callback
        https://bugs.webkit.org/show_bug.cgi?id=161929

        Reviewed by Geoffrey Garen.

        Removed resetCurrentAtomicStringTable() which is no longer referenced.

        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::resetCurrentAtomicStringTable): Deleted.

2016-09-13  Alex Christensen  <achristensen@webkit.org>

        Implement URLSearchParams
        https://bugs.webkit.org/show_bug.cgi?id=161920

        Reviewed by Chris Dumez.

        * wtf/text/StringView.h:
        (WTF::StringView::split): Added.

2016-09-12  Filip Pizlo  <fpizlo@apple.com>

        ParkingLot is going to have a bad time with threads dying
        https://bugs.webkit.org/show_bug.cgi?id=161893

        Reviewed by Michael Saboff.
        
        If a thread dies right as it falls out of parkConditionally, then unparkOne() and friends
        might die because they will dereference a deallocated ThreadData.

        The solution is to ref-count ThreadData's. When unparkOne() and friends want to hold onto a
        ThreadData past the queue lock, they can use RefPtr<>.

        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkOneImpl):
        (WTF::ParkingLot::unparkAll):

2016-09-12  Chris Dumez  <cdumez@apple.com>

        Fix post-landing review comments after r205787
        https://bugs.webkit.org/show_bug.cgi?id=161885

        Reviewed by Darin Adler.

        Add new StringBuilder::append(CFStringRef) / append(NSString*)
        overloads to avoid an extra string copy when possible.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::append):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::append):

2016-09-12  Yusuke Suzuki  <utatane.tea@gmail.com>

        [WTF] HashTable's rehash is not compatible to Ref<T> and ASan
        https://bugs.webkit.org/show_bug.cgi?id=161763

        Reviewed by Darin Adler.

        Destructors of HashTable's empty values need to be called while ones of deleted values don't.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::deallocateTable):
        * wtf/Ref.h:

2016-09-12  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Reduce uses of CGFonts in favor of CTFonts
        https://bugs.webkit.org/show_bug.cgi?id=161809

        Reviewed by Daniel Bates.

        * wtf/unicode/CharacterNames.h:

2016-09-12  Saam Barati  <sbarati@apple.com>

        MapHash should do constant folding when it has a constant argument and its legal to hash that value
        https://bugs.webkit.org/show_bug.cgi?id=161639

        Reviewed by Filip Pizlo.

        This patch adds a concurrentHash method to StringImpl. It's
        probably safe to get the actual hash while being racy, however,
        it's simpler and more future proof to not have to worry about
        that and to just compute it on demand. Users of this API should
        be aware that it's doing non-trivial work. Currently, the only
        user is JSC's JIT compilers, and they only ask for hashes for small-ish
        strings.

        * wtf/text/StringImpl.h:
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::concurrentHash):

2016-09-11  Filip Pizlo  <fpizlo@apple.com>

        DFG::forAllKilledOperands() could use a faster bitvector scan in the same-inline-stack fast path
        https://bugs.webkit.org/show_bug.cgi?id=161849

        Reviewed by Saam Barati.
        
        It turns out that templates make private fields weird. FastBitVectorImpl can't necessarily
        touch privates in instances of different template specializations of itself. So, I added a
        public method called wordView() that exposes the necessary private field.

        * wtf/FastBitVector.h:
        (WTF::FastBitVectorImpl::operator&):
        (WTF::FastBitVectorImpl::operator|):
        (WTF::FastBitVectorImpl::operator~):
        (WTF::FastBitVectorImpl::forEachSetBit):
        (WTF::FastBitVectorImpl::wordView):

2016-09-11  Filip Pizlo  <fpizlo@apple.com>

        FastBitVector should have efficient and easy-to-use vector-vector operations
        https://bugs.webkit.org/show_bug.cgi?id=161847

        Reviewed by Saam Barati.
        
        FastBitVector is a bitvector representation that supports manual dynamic resizing and is
        optimized for speed, not space. (BitVector supports automatic dynamic resizing and is
        optimized for space, while Bitmap is sized statically and is optimized for both speed and
        space.) This change greatly increases the power of FastBitVector. We will use these new
        powers for changing the JSC GC to use FastBitVectors to track sets of MarkedBlocks (bug
        161581) instead of using a combination of Vectors and doubly-linked lists.
        
        This change splits FastBitVector into two parts:
        
        - A thing that manages the storage of a bitvector: a uint32_t array and a size_t numBits.
          We call this the word view.
        - A thing that takes some kind of abstract array of uint32_t's and does bitvector
          operations to it. We call this the FastBitVectorImpl.
        
        FastBitVectorImpl and word views are immutable. The FastBitVector class is a subclass of
        FastBitVectorImpl specialized on a word view that owns its words and has additional
        support for mutable operations.
        
        Doing this allows us to efficiently support things like this without any unnecessary
        memory allocation or copying:
        
        FastBitVector a, b, c; // Assume that there is code to initialize these.
        a &= b | ~c;
        
        Previously, this kind of operation would not be efficient, because "~c" would have to
        create a whole new FastBitVector. But now, it just returns a FastBitVectorImpl whose
        underlying word view bitnots (~) its words on the fly. Using template magic, this can get
        pretty complex. For example "b | ~c" returns a FastBitVectorImpl that wraps a word view
        whose implementation of WordView::word(size_t index) is something like:
        
        uint32_t word(size_t index) { return b.m_words.word(index) | ~c.m_words.word(index); }
        
        FastBitVectorImpl supports all of the fast bulk bitvector operations, like
        forEachSetBit(), bitCount(), etc. So, when you say "a &= b | ~c", the actual
        implementation is going to run these bit operations on word granularity directly over the
        storage inside a, b, c.
        
        The use of operator overloading is worth explaining a bit. Previously, FastBitVector
        avoided operator overloading. For example, the &= operation was called filter(). I think
        that this was a pretty good approach at the time. I tried using non-operator methods in
        this FastBitVector rewrite, but I found it very odd to say things like:
        
        a.filter(b.bitOr(c.bitNot()));
        
        I think that it's harder to see what is going on here, then using operators, because infix
        notation is always better.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BitVector.h:
        (WTF::BitVector::findBitInWord): Deleted.
        * wtf/CMakeLists.txt:
        * wtf/Dominators.h:
        (WTF::Dominators::NaiveDominators::NaiveDominators):
        (WTF::Dominators::NaiveDominators::dominates):
        (WTF::Dominators::NaiveDominators::pruneDominators):
        * wtf/FastBitVector.cpp: Removed.
        * wtf/FastBitVector.h:
        (WTF::fastBitVectorArrayLength):
        (WTF::FastBitVectorWordView::FastBitVectorWordView):
        (WTF::FastBitVectorWordView::numBits):
        (WTF::FastBitVectorWordView::word):
        (WTF::FastBitVectorWordOwner::FastBitVectorWordOwner):
        (WTF::FastBitVectorWordOwner::~FastBitVectorWordOwner):
        (WTF::FastBitVectorWordOwner::view):
        (WTF::FastBitVectorWordOwner::operator=):
        (WTF::FastBitVectorWordOwner::setAll):
        (WTF::FastBitVectorWordOwner::clearAll):
        (WTF::FastBitVectorWordOwner::set):
        (WTF::FastBitVectorWordOwner::numBits):
        (WTF::FastBitVectorWordOwner::arrayLength):
        (WTF::FastBitVectorWordOwner::resize):
        (WTF::FastBitVectorWordOwner::word):
        (WTF::FastBitVectorWordOwner::words):
        (WTF::FastBitVectorAndWords::FastBitVectorAndWords):
        (WTF::FastBitVectorAndWords::view):
        (WTF::FastBitVectorAndWords::numBits):
        (WTF::FastBitVectorAndWords::word):
        (WTF::FastBitVectorOrWords::FastBitVectorOrWords):
        (WTF::FastBitVectorOrWords::view):
        (WTF::FastBitVectorOrWords::numBits):
        (WTF::FastBitVectorOrWords::word):
        (WTF::FastBitVectorNotWords::FastBitVectorNotWords):
        (WTF::FastBitVectorNotWords::view):
        (WTF::FastBitVectorNotWords::numBits):
        (WTF::FastBitVectorNotWords::word):
        (WTF::FastBitVectorImpl::FastBitVectorImpl):
        (WTF::FastBitVectorImpl::numBits):
        (WTF::FastBitVectorImpl::size):
        (WTF::FastBitVectorImpl::arrayLength):
        (WTF::FastBitVectorImpl::operator==):
        (WTF::FastBitVectorImpl::operator!=):
        (WTF::FastBitVectorImpl::at):
        (WTF::FastBitVectorImpl::operator[]):
        (WTF::FastBitVectorImpl::bitCount):
        (WTF::FastBitVectorImpl::operator&):
        (WTF::FastBitVectorImpl::operator|):
        (WTF::FastBitVectorImpl::operator~):
        (WTF::FastBitVectorImpl::forEachSetBit):
        (WTF::FastBitVectorImpl::forEachClearBit):
        (WTF::FastBitVectorImpl::forEachBit):
        (WTF::FastBitVectorImpl::findBit):
        (WTF::FastBitVectorImpl::findSetBit):
        (WTF::FastBitVectorImpl::findClearBit):
        (WTF::FastBitVectorImpl::dump):
        (WTF::FastBitVectorImpl::atImpl):
        (WTF::FastBitVector::FastBitVector):
        (WTF::FastBitVector::operator=):
        (WTF::FastBitVector::resize):
        (WTF::FastBitVector::setAll):
        (WTF::FastBitVector::clearAll):
        (WTF::FastBitVector::setAndCheck):
        (WTF::FastBitVector::operator|=):
        (WTF::FastBitVector::operator&=):
        (WTF::FastBitVector::at):
        (WTF::FastBitVector::operator[]):
        (WTF::FastBitVector::BitReference::BitReference):
        (WTF::FastBitVector::BitReference::operator bool):
        (WTF::FastBitVector::BitReference::operator=):
        (WTF::FastBitVector::~FastBitVector): Deleted.
        (WTF::FastBitVector::numBits): Deleted.
        (WTF::FastBitVector::set): Deleted.
        (WTF::FastBitVector::equals): Deleted.
        (WTF::FastBitVector::merge): Deleted.
        (WTF::FastBitVector::filter): Deleted.
        (WTF::FastBitVector::exclude): Deleted.
        (WTF::FastBitVector::clear): Deleted.
        (WTF::FastBitVector::get): Deleted.
        (WTF::FastBitVector::bitCount): Deleted.
        (WTF::FastBitVector::forEachSetBit): Deleted.
        (WTF::FastBitVector::arrayLength): Deleted.
        * wtf/StdLibExtras.h:
        (WTF::findBitInWord):

2016-09-10  Chris Dumez  <cdumez@apple.com>

        parseHTMLInteger() should take a StringView in parameter
        https://bugs.webkit.org/show_bug.cgi?id=161669

        Reviewed by Ryosuke Niwa.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::append):
        Add StringBuilder::append() overload taking an AtomicString in parameter.
        It used to call StringBuilder::append(const String&) implicitly when
        passing an AtomicString. However, it is now ambiguous because there
        is an overload taking a StringView, and it is now possible to construct
        a StringView from an AtomicString.

        * wtf/text/StringView.h:
        (WTF::StringView::StringView):
        - Add StringView constructor taking an AtomicString in parameter for
          convenience. This avoids having to call AtomicString::string()
          explicitly at call sites.
        - Add StringView constructor taking a 'const char*' in parameter for
          performance. There are several call sites that were passing a const
          char* and implicitly constructing an unnecessary String to construct
          a StringView. This became more obvious because the constructor taking
          an AtomicString in parameter made such calls ambiguous.


2016-09-09  Mark Lam  <mark.lam@apple.com>

        Gardening: fixing a few JSC test failures.
        https://bugs.webkit.org/show_bug.cgi?id=161760

        Not reviewed.

        Without this fix, the following tests will crash on a null dereference of isGCThread.
            stress/slow-path-generator-updating-current-node-dfg.js.misc-ftl-no-cjit
            stress/unshift-array-storage.js.misc-ftl-no-cjit

        * wtf/MainThread.cpp:
        (WTF::mayBeGCThread):

2016-09-08  Yusuke Suzuki  <utatane.tea@gmail.com>

        [WTF] HashTable's rehash is not compatible to Ref<T> and ASan
        https://bugs.webkit.org/show_bug.cgi?id=161763

        Reviewed by Mark Lam.

        If we move an object, the location which the moved object used should not be touched anymore.
        HashTable::rehash performs WTFMove for the object that resides in the old table.
        However, after moving it, we accidentally touch this location by using `!isEmptyOrDeletedBucket(table[i])`
        in HashTable::deallocateTable. And it causes ASan crashing if we use Ref<> for HashTable's key or value.

        In this patch, we call the destructor right after moving the object. And HashTable::rehash just calls
        fastFree since all the objects in the old table are already moved and destructed.
        And we also change HashTable::deallocate to destruct only live objects. Calling destructors for empty objects
        is meaningless. And according to the Ref<>'s comment, empty object is not designed to be destructed.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::deallocateTable):

2016-09-08  Filip Pizlo  <fpizlo@apple.com>

        Heap::isMarked() shouldn't pay the price of concurrent lazy flipping
        https://bugs.webkit.org/show_bug.cgi?id=161760

        Reviewed by Mark Lam.

        * wtf/MainThread.cpp:
        (WTF::isMainThreadOrGCThread):
        (WTF::mayBeGCThread):
        * wtf/MainThread.h:

2016-09-08  Myles C. Maxfield  <mmaxfield@apple.com>

        Support new emoji group candidates
        https://bugs.webkit.org/show_bug.cgi?id=161664
        <rdar://problem/24802695>
        <rdar://problem/27666433>

        Reviewed by Simon Fraser.

        Update breaking rules.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::cursorMovementIterator):

2016-09-07  JF Bastien  <jfbastien@apple.com>

        bitwise_cast: allow const destination type
        https://bugs.webkit.org/show_bug.cgi?id=161719

        Reviewed by Saam Barati.

        * wtf/StdLibExtras.h:
        (WTF::bitwise_cast): allow `const To to = bitwise_cast<const To>(from);`

2016-09-07  Mark Lam  <mark.lam@apple.com>

        Add CatchScope and force all exception checks to be via ThrowScope or CatchScope.
        https://bugs.webkit.org/show_bug.cgi?id=161498

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:

2016-09-07  Youenn Fablet  <youenn@apple.com>

        [Streams API] Separate compile flag for ReadableStream and WritableStream
        https://bugs.webkit.org/show_bug.cgi?id=161044

        Reviewed by Alex Christensen.

        * wtf/FeatureDefines.h:

2016-09-06  Saam Barati  <sbarati@apple.com>

        Make JSMap and JSSet faster
        https://bugs.webkit.org/show_bug.cgi?id=160989

        Reviewed by Filip Pizlo.

        I made s_flagCount public in StringImpl since JSC's JITs now use this field.

        * wtf/text/StringImpl.h:

2016-09-06  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r205504.
        https://bugs.webkit.org/show_bug.cgi?id=161645

        Broke the iOS device build (Requested by ryanhaddad on
        #webkit).

        Reverted changeset:

        "Make JSMap and JSSet faster"
        https://bugs.webkit.org/show_bug.cgi?id=160989
        http://trac.webkit.org/changeset/205504

2016-09-06  Saam Barati  <sbarati@apple.com>

        Make JSMap and JSSet faster
        https://bugs.webkit.org/show_bug.cgi?id=160989

        Reviewed by Filip Pizlo.

        I made s_flagCount public since JSC's JITs now use this field.

        * wtf/text/StringImpl.h:

2016-09-06  Per Arne Vollan  <pvollan@apple.com>

        [Win] Enable strict runtime stack buffer checks.
        https://bugs.webkit.org/show_bug.cgi?id=161629

        Reviewed by Brent Fulgham.

        * wtf/Platform.h:

2016-09-06  Daniel Bates  <dabates@apple.com>

        Remove EXTERN_C from WTF
        https://bugs.webkit.org/show_bug.cgi?id=161090

        Reviewed by Brent Fulgham.

        Guard external C declarations in WTF_EXTERN_C_BEGIN, WTF_EXTERN_C_END.

        * wtf/Compiler.h: Remove macro definition EXTERN_C.
        * wtf/spi/cf/CFBundleSPI.h:
        * wtf/spi/cocoa/NSMapTableSPI.h:
        * wtf/spi/cocoa/SecuritySPI.h:
        * wtf/spi/darwin/CommonCryptoSPI.h:
        * wtf/spi/darwin/SandboxSPI.h:
        * wtf/spi/darwin/XPCSPI.h:
        * wtf/spi/darwin/dyldSPI.h:

2016-08-31  Filip Pizlo  <fpizlo@apple.com>

        Butterflies should be allocated in Auxiliary MarkedSpace instead of CopiedSpace and we should rewrite as much of the GC as needed to make this not a regression
        https://bugs.webkit.org/show_bug.cgi?id=160125

        Reviewed by Geoffrey Garen and Keith Miller.
        
        I needed tryFastAlignedMalloc() so I added it.

        * wtf/FastMalloc.cpp:
        (WTF::tryFastAlignedMalloc):
        * wtf/FastMalloc.h:
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::forEachImpl):
        (WTF::ParkingLot::forEach): Deleted.
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::forEach):
        * wtf/ScopedLambda.h:
        (WTF::scopedLambdaRef):
        * wtf/SentinelLinkedList.h:
        (WTF::SentinelLinkedList::forEach):
        (WTF::RawNode>::takeFrom):
        * wtf/SimpleStats.h:
        (WTF::SimpleStats::operator bool):
        (WTF::SimpleStats::operator!): Deleted.

2016-09-02  JF Bastien  <jfbastien@apple.com>

        bitwise_cast infinite loops if called from the default constructor in ToType
        https://bugs.webkit.org/show_bug.cgi?id=161365

        Reviewed by Saam Barati.

        * wtf/StdLibExtras.h:
        (WTF::bitwise_cast): use aggregate initialization to avoid ctor

2016-09-01  Anders Carlsson  <andersca@apple.com>

        Use BlockPtr::fromCallable in WorkQueue::dispatch and WorkQueue::dispatchAfter
        https://bugs.webkit.org/show_bug.cgi?id=161512

        Reviewed by Chris Dumez.

        This lets us get rid of leakCallable and adoptCallable.

        * wtf/BlockPtr.h:
        * wtf/Function.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2016-09-01  Anders Carlsson  <andersca@apple.com>

        add BlockPtr::fromCallable
        https://bugs.webkit.org/show_bug.cgi?id=161504

        Reviewed by Tim Horton.

        BlockPtr::fromCallable lets you create an Objective-C block from any callable object - including lambdas that contain move-only types.
        The block will be allocated on the heap so it doesn't ever need to be copied (which is how it can work with move-only types).

        * wtf/BlockPtr.h:

2016-08-31  Keith Rollin  <krollin@apple.com>

        WebKit should set a subsystem for os_log so it's easier to filter for WebKit log messages
        https://bugs.webkit.org/show_bug.cgi?id=160969
        <rdar://problem/26068734>

        Reviewed by Simon Fraser.

        Add support for attaching a subsystem and category when logging via
        the RELEASE_LOG macros. This support is provided by adding subsystem
        and category information to WTFLogChannel. An os_log_t object is then
        created to enacpsulate that information. When using RELEASE_LOG to log
        through that channel, the associated log object is used when calling
        os_log.

        To help support the inclusion of the subsystem and category
        information in WTFLogChannel, the DECLARE_LOG_CHANNEL,
        DEFINE_LOG_CHANNEL, and LOG_CHANNEL_ADDRESS macros that were defined
        in various modules are consolidated and moved to Assertions.h.
        DEFINE_LOG_CHANNEL is now defined to initialize the subsystem and
        category.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/RefCountedLeakCounter.cpp:

2016-08-31  Alex Christensen  <achristensen@webkit.org>

        Implement IPv6 parsing in URLParser
        https://bugs.webkit.org/show_bug.cgi?id=161390

        Reviewed by Darin Adler.

        * wtf/ASCIICType.h:
        (WTF::lowerNibbleToLowercaseASCIIHexDigit):
        (WTF::upperNibbleToLowercaseASCIIHexDigit):

2016-08-30  Brady Eidson  <beidson@apple.com>

        GameController.framework backend for gamepad API.
        https://bugs.webkit.org/show_bug.cgi?id=161086

        Reviewed by Alex Christensen.

        * wtf/RunLoop.h:
        (WTF::RunLoop::TimerBase::startOneShot):

2016-08-30  Mark Lam  <mark.lam@apple.com>

        Introduce the ThrowScope and force every throw site to instantiate a ThrowScope.
        https://bugs.webkit.org/show_bug.cgi?id=161171

        Reviewed by Filip Pizlo and Geoffrey Garen.

        * wtf/Platform.h:
        - Introduced the ENABLE(THROW_SCOPE_VERIFICATION) flag.

2016-08-27  Alex Christensen  <achristensen@webkit.org>

        URLParser should parse relative URLs
        https://bugs.webkit.org/show_bug.cgi?id=161282

        Reviewed by Darin Adler.

        * wtf/text/StringView.h:
        Use a std::reference_wrapper for the StringView& to make it reassignable so we can add an operator=.

2016-08-26  JF Bastien  <jfbastien@apple.com>

        bitwise_cast uses inactive member of union
        https://bugs.webkit.org/show_bug.cgi?id=161244

        Reviewed by Benjamin Poulain.

        * wtf/Compiler.h:
        Add COMPILER_HAS_CLANG_FEATURE
        * wtf/StdLibExtras.h:
        (WTF::bitwise_cast):
        Fix C++ UB, add trivially-copyable check.

        bitwise_cast stores into a union with one type and reads with
        another, which is technically C++ undefined behavior because it's
        accessing the wrong active member of the union. The better way to
        do this is through memcpy, which compilers optimize as well
        because it's known-size in known-not-to-escape storage (for small
        types they'll inline and then convert stack memory access to SSA
        values which may be in-register if that makes sense, which would
        be a move between int/FP registers at worst).

        The C++ Standard's section [basic.types] explicitly blesses memcpy:

          For any trivially copyable type T, if two pointers to T point to
          distinct T objects obj1 and obj2, where neither obj1 nor obj2 is a
          base-class subobject, if the underlying bytes (1.7) making up obj1
          are copied into obj2, 42 obj2 shall subsequently hold the same
          value as obj1.

          [Example:
            T* t1p;
            T* t2p;
            // provided that t2p points to an initialized object ...
            std::memcpy(t1p, t2p, sizeof(T));
            // at this point, every subobject of trivially copyable type in *t1p contains
            // the same value as the corresponding subobject in *t2p
          — end example ]

        Whereas section [class.union] says:

          In a union, at most one of the non-static data members can be
          active at any time, that is, the value of at most one of the
          non-static data members can be stored in a union at any time.

        While we're at it, checking that sizeof(To) == sizeof(From) is
        good, but we should also check that both types are trivially
        copyable (can have a ctor, no dtor, and copy is defaulted as if by
        memcpy for type and all subtypes). Unfortunately that trait isn't
        implemented consistently in all recent compiler+stdlib
        implementations, but recent clang has an equivalent builtin
        (other compilers simply won't do the check, and will break on bots
        with the right compilers which is better than the current silent
        breakage). This builtin hack also avoids #include <type_traits>
        which really doesn't save much.

2016-08-26  Johan K. Jensen  <johan_jensen@apple.com>

        Web Inspector: Frontend should have access to Resource Timing information
        https://bugs.webkit.org/show_bug.cgi?id=160095

        Reviewed by Alex Christensen.

        Add method to get elapsed time for any monotonic time.
        Used by InspectorNetworkAgent.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::elapsedTimeSinceMonotonicTime):

2016-08-26  Csaba Osztrogonác  <ossy@webkit.org>

        Fix the ENABLE(WEBASSEMBLY) build on Linux
        https://bugs.webkit.org/show_bug.cgi?id=161197

        Reviewed by Mark Lam.

        * wtf/Platform.h:

2016-08-25  Yusuke Suzuki  <utatane.tea@gmail.com>

        [DFG][FTL] Implement ES6 Generators in DFG / FTL
        https://bugs.webkit.org/show_bug.cgi?id=152723

        Reviewed by Filip Pizlo.

        * wtf/FastBitVector.h:
        (WTF::FastBitVector::FastBitVector):

2016-08-25  JF Bastien  <jfbastien@apple.com>

        TryGetById should have a ValueProfile so that it can predict its output type
        https://bugs.webkit.org/show_bug.cgi?id=160921

        Reviewed by Saam Barati.

        Add WTF_CONCAT to StdLibExtras.h

        * wtf/StdLibExtras.h:

2016-08-25  Johan K. Jensen  <johan_jensen@apple.com>

        Don't store networkLoadTiming in the disk cache
        https://bugs.webkit.org/show_bug.cgi?id=161161

        Reviewed by Antti Koivisto.

        * wtf/Forward.h:
        Remove Encode and Decode forward declarations.

2016-08-24  Yusuke Suzuki  <utatane.tea@gmail.com>

        [JSC] Move generic data structures out of B3
        https://bugs.webkit.org/show_bug.cgi?id=161155

        Reviewed by Saam Barati.

        Add IndexSet, IndexMap, and IndexedContainerIterator.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/IndexMap.h: Copied from Source/JavaScriptCore/b3/B3IndexMap.h.
        (WTF::IndexMap::IndexMap):
        (WTF::IndexMap::resize):
        (WTF::IndexMap::clear):
        (WTF::IndexMap::size):
        (WTF::IndexMap::operator[]):
        * wtf/IndexSet.h: Renamed from Source/JavaScriptCore/b3/B3IndexSet.h.
        (WTF::IndexSet::IndexSet):
        (WTF::IndexSet::add):
        (WTF::IndexSet::addAll):
        (WTF::IndexSet::remove):
        (WTF::IndexSet::contains):
        (WTF::IndexSet::size):
        (WTF::IndexSet::isEmpty):
        (WTF::IndexSet::Iterable::Iterable):
        (WTF::IndexSet::Iterable::iterator::iterator):
        (WTF::IndexSet::Iterable::iterator::operator*):
        (WTF::IndexSet::Iterable::iterator::operator++):
        (WTF::IndexSet::Iterable::iterator::operator==):
        (WTF::IndexSet::Iterable::iterator::operator!=):
        (WTF::IndexSet::Iterable::begin):
        (WTF::IndexSet::Iterable::end):
        (WTF::IndexSet::values):
        (WTF::IndexSet::indices):
        (WTF::IndexSet::dump):
        * wtf/IndexedContainerIterator.h: Renamed from Source/JavaScriptCore/b3/B3IndexMap.h.
        (WTF::IndexedContainerIterator::IndexedContainerIterator):
        (WTF::IndexedContainerIterator::operator++):
        (WTF::IndexedContainerIterator::operator==):
        (WTF::IndexedContainerIterator::operator!=):
        (WTF::IndexedContainerIterator::findNext):

2016-08-24  Andreas Kling  <akling@apple.com>

        Add WTF::isFastMallocEnabled().
        <https://webkit.org/b/160534>

        Reviewed by Joseph Pecoraro.

        * wtf/FastMalloc.cpp:
        (WTF::isFastMallocEnabled):
        * wtf/FastMalloc.h:

2016-08-23  Anders Carlsson  <andersca@apple.com>

        Add enum traits and use them in the IPC::Decoder
        https://bugs.webkit.org/show_bug.cgi?id=161103

        Reviewed by Sam Weinig.

        Add EnumTraits.h which provides a forward declaration for WTF::EnumTraits as well as
        the WTF::isValidEnum function.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/EnumTraits.h: Added.

2016-08-24  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, roll out r204901, r204897, r204866, r204856, r204854.

        * wtf/FastMalloc.cpp:
        (WTF::tryFastAlignedMalloc): Deleted.
        * wtf/FastMalloc.h:
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::forEach):
        (WTF::ParkingLot::forEachImpl): Deleted.
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::forEach): Deleted.
        * wtf/ScopedLambda.h:
        (WTF::scopedLambdaRef): Deleted.

2016-08-22  Filip Pizlo  <fpizlo@apple.com>

        Butterflies should be allocated in Auxiliary MarkedSpace instead of CopiedSpace and we should rewrite as much of the GC as needed to make this not a regression
        https://bugs.webkit.org/show_bug.cgi?id=160125

        Reviewed by Geoffrey Garen.
        
        I needed tryFastAlignedMalloc() so I added it.

        * wtf/FastMalloc.cpp:
        (WTF::fastAlignedMalloc):
        (WTF::tryFastAlignedMalloc):
        (WTF::fastAlignedFree):
        * wtf/FastMalloc.h:

2016-08-22  Keith Miller  <keith_miller@apple.com>

        Actually enable the WASM build.
        https://bugs.webkit.org/show_bug.cgi?id=160933

        Reviewed by Geoffrey Garen.

        * wtf/FeatureDefines.h:

2016-08-17  Don Olmstead  <don.olmstead@am.sony.com>

        Use find_library within Windows build
        https://bugs.webkit.org/show_bug.cgi?id=160904

        Reviewed by Brent Fulgham.

        * wtf/CMakeLists.txt:

2016-08-17  Anders Carlsson  <andersca@apple.com>

        Move WKSignedPublicKeyAndChallengeString into WebCore and make it proper C++
        https://bugs.webkit.org/show_bug.cgi?id=160945

        Reviewed by Dan Bernstein.

        * wtf/RetainPtr.h:
        (WTF::RetainPtr::operator&):
        Cast this to the right type.

        * wtf/spi/cocoa/SecuritySPI.h:
        Add new SPI.

2016-08-17  Antti Koivisto  <antti@apple.com>

        Remove CSS_IMAGE_SET feature define
        https://bugs.webkit.org/show_bug.cgi?id=160944

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h:

2016-08-16  Keith Miller  <keith_miller@apple.com>

        Enable WebAssembly in the build.
        https://bugs.webkit.org/show_bug.cgi?id=160916

        Reviewed by Benjamin Poulain.

        This patch turns on WebAssembly on all the platforms that support B3.
        Turning on WebAssembly by default lets us check the build on every
        platform.

        * wtf/FeatureDefines.h:

2016-08-16  Anders Carlsson  <andersca@apple.com>

        Fix a thinko.

        * wtf/Scope.h:

2016-08-16  Anders Carlsson  <andersca@apple.com>

        Add WTF::ScopeExit
        https://bugs.webkit.org/show_bug.cgi?id=160908

        Reviewed by Geoffrey Garen.

        WTF::ScopeExit and WTF::makeScopeExit let you define an object that will invoke a function when the
        object goes out of scope. This is going to be used to avoid spagetti-code and gotos in a future patch.

        The class is modeled after the LWG paper "P0052 - Generic Scope Guard and RAII Wrapper for the Standard Library".

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Scope.h: Added.
        (WTF::makeScopeExit):

2016-08-15  Anders Carlsson  <andersca@apple.com>

        Add an address-of operator to RetainPtr
        https://bugs.webkit.org/show_bug.cgi?id=160879

        Reviewed by Tim Horton.

        This will make some security-related code from WebKitSystemInterface easier to port.

        * wtf/HashIterators.h:
        (WTF::HashTableValuesIterator::get):
        * wtf/HashTable.h:
        (WTF::HashTableBucketInitializer<true>::initialize):
        Use std::addressof instead of &, in case & is overloaded.

        * wtf/RetainPtr.h:
        (WTF::RetainPtr::operator&):
        Implement this.

2016-08-15  Sam Weinig  <sam@webkit.org>

        Speed up compile times by not including wtf/Variant.h so much
        https://bugs.webkit.org/show_bug.cgi?id=160847

        Reviewed by Alex Christensen and Saam Barati.

        * wtf/Forward.h:
        Add forward declaration of std::variant.

        * wtf/StdLibExtras.h:
        Remove references to std::variant. Move them to wtf/Variant.h

2016-08-15  Keith Miller  <keith_miller@apple.com>

        Implement WASM Parser and B3 IR generator
        https://bugs.webkit.org/show_bug.cgi?id=160681

        Reviewed by Benjamin Poulain.

        * wtf/DataLog.h:
        (WTF::dataLogLn): Add a new dataLog function, dataLogLn that
        automagically includes a new line at the end of the print.
        * wtf/LEBDecoder.h:
        (decodeUInt32):
        (decodeInt32): Change the LEBDecoder to take a pointer and length
        rather than a Vector.

2016-08-15  Keith Rollin  <krollin@apple.com>

        Rename LOG_ALWAYS
        https://bugs.webkit.org/show_bug.cgi?id=160768

        Rename LOG_ALWAYS and friends, given that the first parameter to it is
        a boolean expression that determines whether or not logging should be
        performed.

        Reviewed by Chris Dumez.

        * wtf/Assertions.h:

2016-08-15  Joseph Pecoraro  <pecoraro@apple.com>

        Remove unused includes of wtf headers
        https://bugs.webkit.org/show_bug.cgi?id=160839

        Reviewed by Alex Christensen.

        * wtf/BackwardsGraph.h:
        * wtf/DataLog.cpp:
        * wtf/WorkQueue.cpp:
        * wtf/text/StringImpl.cpp:
        * wtf/unicode/icu/CollatorICU.cpp:

2016-08-14  Daniel Bates  <dabates@apple.com>

        Fix compiler errors when building iOS WebKit using the iOS 10 beta SDK
        https://bugs.webkit.org/show_bug.cgi?id=160725

        Reviewed by Sam Weinig.

        For now, disable OS_LOG when building with the iOS 10 beta SDK until
        we have the fix for <rdar://problem/27758343>.

        * wtf/Platform.h:

2016-08-13  Dan Bernstein  <mitz@apple.com>

        Build fix follow-up to r204433.

        * wtf/StdLibExtras.h:
        (WTF::makeVisitor): Don’t use an auto return type.

2016-08-12  Sam Weinig  <sam@webkit.org>

        Make variant only available when compiling for C++14 or greater
        https://bugs.webkit.org/show_bug.cgi?id=160813

        Reviewed by Anders Carlsson.

        * wtf/Compiler.h:
        * wtf/StdLibExtras.h:
        * wtf/Variant.h:

2016-08-11  Maureen Daum  <mdaum@apple.com>

        Add NSButtonType to AppKitCompatibilityDeclarations.h.
        https://bugs.webkit.org/show_bug.cgi?id=160767.

        Reviewed by Dan Bernstein.

        Add NSButtonType to AppKitCompatibilityDeclarations.h so that we can use the new
        names but still build successfully on older OS versions.

        * wtf/mac/AppKitCompatibilityDeclarations.h:

2016-08-10  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] TinyPtrSet::deleteListIfNecessary() no longer needs to test for reservedValue
        https://bugs.webkit.org/show_bug.cgi?id=160721

        Reviewed by Sam Weinig.

        Previously, TinyPtrSet was using a ThinFlag if there was no OutOfLineList.
        A side effect is that isThin() was false for reservedValue. When deleting
        the list, we had to consider both cases: isThin() and reservedValue.

        In r204065, I changed the flag to a FatFlag to ensure TinyPtrSet can be initialized
        with bzero().
        This changes the value of isThin() of reservedValue to true since reservedValue
        does not have the FatFlag bit set.
        This patch removes the useless condition from deleteListIfNecessary().

        * wtf/TinyPtrSet.h:
        (WTF::TinyPtrSet::deleteListIfNecessary):

2016-08-09  Sam Weinig  <sam@webkit.org>

        Fix windows build.

        * wtf/Variant.h:
        (std::experimental::__visit_helper2::__visit):
        MSVC does not support extended constexpr. Use a ternary operator instead of an if statement.

2016-08-06  Sam Weinig  <sam@webkit.org>

        Replace NodeOrString with std::variant<RefPtr<Node>, String>
        https://bugs.webkit.org/show_bug.cgi?id=160638

        Reviewed by Anders Carlsson.

        * wtf/StdLibExtras.h:
        (WTF::Visitor::Visitor):
        (WTF::makeVisitor):
        Add WTF::makeVisitor() which takes a list of lambdas to use
        an an overload set for a visitor object.

        Also, re-export std::experimental::variant (and helpers) in the std
        namespace using type aliasing.

        * wtf/Variant.h:
        Make std::experimental::variant work in WebCore.

2016-08-06  Sam Weinig  <sam@webkit.org>

        WTF needs a variant implementation
        https://bugs.webkit.org/show_bug.cgi?id=160618

        Reviewed by Darin Adler.

        Add an implementation of std::experimental::variant matching the C++17 draft http://wg21.link/n4606 
        taken from https://bitbucket.org/anthonyw/variant/src (5bce47fa788648f79e5ea1d77b0eef2e8f0b2999) and
        modified to support compiling without exceptions (where it used to throw, we lovingly CRASH()).

        * WTF.xcodeproj/project.pbxproj:
        Add new file.

        * wtf/Compiler.h:
        Add COMPILER_SUPPORTS define for C++ exceptions.

        * wtf/Variant.h: Added.

2016-08-05  Keith Miller  <keith_miller@apple.com>

        Add LEBDecoder and tests
        https://bugs.webkit.org/show_bug.cgi?id=160625

        Reviewed by Benjamin Poulain.

        Adds some LEB decoder functions to WTF. These are used in the
        WASM spec to encode numbers in a semi-compressed format.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/LEBDecoder.h: Added.
        (decodeUInt32):
        (decodeInt32):

2016-08-05  Keith Miller  <keith_miller@apple.com>

        Delete out of date WASM code.
        https://bugs.webkit.org/show_bug.cgi?id=160603

        Reviewed by Saam Barati.

        Add Feature define for WebAssembly on mac.

        * wtf/FeatureDefines.h:

2016-08-03  Csaba Osztrogonác  <ossy@webkit.org>

        Lacking support on a arm-traditional disassembler.
        https://bugs.webkit.org/show_bug.cgi?id=123717

        Reviewed by Mark Lam.

        * wtf/Platform.h:

2016-08-02  Myles C. Maxfield  <mmaxfield@apple.com>

        Update breaking rules to match ICU 57
        https://bugs.webkit.org/show_bug.cgi?id=160488
        <rdar://problem/25856238>

        Reviewed by Darin Adler.

        This patch fixes a typo in the uax14AssignmentsAfter rules which
        was causing flag emoji to have line breaking opportunities in their
        middles. It also fixes significant language issues for languages
        such as Hebrew, and adds correct breaking opportunities around
        hyphens.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::cursorMovementIterator):
        (WTF::uax14AssignmentsAfter):
        (WTF::uax14Forward):
        (WTF::uax14Reverse):

2016-08-02  Benjamin Poulain  <benjamin@webkit.org>

        [JSC] Simplify the initialization of AbstractValue in the AbstractInterpreter
        https://bugs.webkit.org/show_bug.cgi?id=160370

        Reviewed by Saam Barati.

        * wtf/TinyPtrSet.h:
        (WTF::TinyPtrSet::isThin):
        (WTF::TinyPtrSet::set):

2016-08-02  Benjamin Poulain  <bpoulain@apple.com>

        Clean up some useless AtomicString atoms
        https://bugs.webkit.org/show_bug.cgi?id=160471

        Reviewed by Geoffrey Garen.

        * wtf/text/AtomicString.h:
        * wtf/text/StringStatics.cpp:
        (WTF::AtomicString::init): Deleted.

2016-08-01  Benjamin Poulain  <bpoulain@apple.com>

        [JSC][ARM64] Fix branchTest32/64 taking an immediate as mask
        https://bugs.webkit.org/show_bug.cgi?id=160439

        Reviewed by Filip Pizlo.

        * wtf/MathExtras.h:
        (getLSBSet):
        This was not working at all for MacroAssembler.
        Since TrustedImm32/64 are signed integers, the arithmetic shift would
        never get rid of the top bit and we get an infinite loop.

2016-07-29  Mark Lam  <mark.lam@apple.com>

        Make StringView capable of being passed or returned in only 2 registers.
        https://bugs.webkit.org/show_bug.cgi?id=160344

        Reviewed by Geoffrey Garen.

        We just need to #if out copy and move constructors and assignment operators.

        After this change, the following test code:

            JS_EXPORT_PRIVATE StringView returnStringView(StringView sv)
            {
                return sv;
            }

        ... compiles to the following for x86_64:

            __ZN3JSC16returnStringViewEN3WTF10StringViewE:
            000000000093fb20        pushq   %rbp
            000000000093fb21        movq    %rsp, %rbp
            000000000093fb24        movq    %rdi, %rax // Copy from arg word 0 to ret word 0.
            000000000093fb27        movq    %rsi, %rdx // Copy from arg word 1 to ret word 1.
            000000000093fb2a        popq    %rbp
            000000000093fb2b        retq

        ... and this for arm64:

            __ZN3JSC16returnStringViewEN3WTF10StringViewE:
            0000000000818504        ret // arg word 0 and 1 are in the same regs as ret word 0 and 1.

        * wtf/text/StringView.h:
        (WTF::StringView::StringView):
        (WTF::StringView::~StringView):
        (WTF::StringView::operator=):

2016-07-29  Csaba Osztrogonác  <ossy@webkit.org>

        Remove PassRef.h after r177259
        https://bugs.webkit.org/show_bug.cgi?id=160348

        Reviewed by Andreas Kling.

        * wtf/PassRef.h: Removed.

2016-07-28  Mark Lam  <mark.lam@apple.com>

        StringView should have an explicit m_is8Bit field.
        https://bugs.webkit.org/show_bug.cgi?id=160282
        <rdar://problem/27327943>

        Reviewed by Benjamin Poulain.

        The current implementation reserves 1 bit in the 32-bit m_length field as an
        is16Bit flag.  As a result, a StringView is incapable of handling strings that
        have a length of 32-bit in size.  This results in a mismatch with the
        expectations of String, StringImpl, and JavaScriptCore's JSString which all
        support a 32-bit unsigned length.

        This patch fixes this issue by introducing an explicit m_is8Bit field, thereby
        allowing m_length to be a full 32-bit again.

        We also introduced a clear() convenience method to set the fields of StringView
        to empty values.  Previously, we were duplicating the code for clearing those
        fields.  We now call clear() in all those places instead.

        Note: in clear(), we set m_is8Bit to true because we want an empty StringView
        to be 8-bit rather than 16-bit.  This is consistent with what the empty() method
        returns.

        * wtf/text/StringView.h:
        (WTF::StringView::setUnderlyingString):
        (WTF::StringView::StringView):
        (WTF::StringView::operator=):
        (WTF::StringView::initialize):
        (WTF::StringView::clear):
        (WTF::StringView::empty):
        (WTF::StringView::length):
        (WTF::StringView::operator bool):
        (WTF::StringView::is8Bit):
        (WTF::StringView::substring):
        (WTF::StringView::getCharactersWithUpconvert):
        (WTF::StringView::toString):
        (WTF::StringView::toAtomicString):
        (WTF::StringView::toFloat):
        (WTF::StringView::toInt):
        (WTF::StringView::toIntStrict):
        (WTF::StringView::toStringWithoutCopying):
        (WTF::StringView::find):

2016-07-24  Filip Pizlo  <fpizlo@apple.com>

        B3 should support multiple entrypoints
        https://bugs.webkit.org/show_bug.cgi?id=159391

        Reviewed by Saam Barati.

        * wtf/GraphNodeWorklist.h: Expose some handy functionality.
        (WTF::GraphNodeWorklist::pop):
        (WTF::GraphNodeWorklist::saw):
        (WTF::GraphNodeWorklist::seen):
        * wtf/VectorTraits.h: Fix a bug! Otherwise filling a vector of byte-sized enum classes doesn't work.

2016-07-21  Myles C. Maxfield  <mmaxfield@apple.com>

        [macOS] Caret placement occurs in the middle of new emoji group candidates
        https://bugs.webkit.org/show_bug.cgi?id=160008
        <rdar://problem/27430111>

        Reviewed by Simon Fraser.

        r203330 added support for new emoji group candidates. This patch updates the rules
        governing caret placement around these new emoji groups.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::cursorMovementIterator):

2016-07-20  Rajeev Misra  <rajeevmisraforapple@gmail.com>

        Remove unnecessary if check from ParkingLot.cpp
        https://bugs.webkit.org/show_bug.cgi?id=159961

        Reviewed by Alex Christensen.

        A good practice is to have as less conditional statement
        or special cases as possible in code. This change
        simply removes a unnecessary "if" statement for
        condition which was already evaluated by switch/case
        and thus there was no need to evaluate again.

        * wtf/ParkingLot.cpp:

2016-07-18  Anders Carlsson  <andersca@apple.com>

        WebKit nightly fails to build on macOS Sierra
        https://bugs.webkit.org/show_bug.cgi?id=159902
        rdar://problem/27365672

        Reviewed by Tim Horton.

        * icu/unicode/ucurr.h: Added.
        Add ucurr.h from ICU.

2016-07-18  Michael Saboff  <msaboff@apple.com>

        ASSERTION FAILED: : (year >= 1970 && yearday >= 0) || (year < 1970 && yearday < 0) -- WTF/wtf/DateMath.cpp
        https://bugs.webkit.org/show_bug.cgi?id=159883

        Reviewed by Filip Pizlo.

        The function daysFrom1970ToYear() takes an integer year and returns a double result.
        The calculation uses 1970 as a baseline year and subtracts 1970 from the argument year.
        It does that subtraction using integer arithmetic, which given negative years close to
        INT_MIN can underflow as a result of subtracting 1970.  Since we want a double result,
        the fix is to cast year as a double before the subtraction, which eliminates the underflow.

        * wtf/DateMath.cpp:
        (WTF::daysFrom1970ToYear):

2016-07-17  Filip Pizlo  <fpizlo@apple.com>

        RegisterSet should use a Bitmap instead of a BitVector so that it never allocates memory and is trivial to copy
        https://bugs.webkit.org/show_bug.cgi?id=159863

        Reviewed by Saam Barati.
        
        Give Bitmap all of the power of BitVector (except for automatic resizing). This means a
        variant of set() that takes a bool, and a bunch of helper methods (merge, filter, exclude,
        forEachSetBit, ==, !=, and hash).

        * wtf/Bitmap.h:
        (WTF::WordType>::set):
        (WTF::WordType>::testAndSet):
        (WTF::WordType>::isFull):
        (WTF::WordType>::merge):
        (WTF::WordType>::filter):
        (WTF::WordType>::exclude):
        (WTF::WordType>::forEachSetBit):
        (WTF::=):
        (WTF::WordType>::hash):

2016-07-02  Filip Pizlo  <fpizlo@apple.com>

        WTF::Lock should be fair eventually
        https://bugs.webkit.org/show_bug.cgi?id=159384

        Reviewed by Geoffrey Garen.
        
        In https://webkit.org/blog/6161/locking-in-webkit/ we showed how relaxing the fairness of
        locks makes them fast. That post presented lock fairness as a trade-off between two
        extremes:
        
        - Barging. A barging lock, like WTF::Lock, releases the lock in unlock() even if there was a
          thread on the queue. If there was a thread on the queue, the lock is released and that
          thread is made runnable. That thread may then grab the lock, or some other thread may grab
          the lock first (it may barge). Usually, the barging thread is the thread that released the
          lock in the first place. This maximizes throughput but hurts fairness. There is no good
          theoretical bound on how unfair the lock may become, but empirical data suggests that it's
          fair enough for the cases we previously measured.
        
        - FIFO. A FIFO lock, like HandoffLock in ToyLocks.h, does not release the lock in unlock()
          if there is a thread waiting. If there is a thread waiting, unlock() will make that thread
          runnable and inform it that it now holds the lock. This ensures perfect round-robin
          fairness and allows us to reason theoretically about how long it may take for a thread to
          grab the lock. For example, if we know that only N threads are running and each one may
          contend on a critical section, and each one may hold the lock for at most S seconds, then
          the time it takes to grab the lock is N * S. Unfortunately, FIFO locks perform very badly
          in most cases. This is because for the common case of short critical sections, they force
          a context switch after each critical section if the lock is contended.
        
        This change makes WTF::Lock almost as fair as FIFO while still being as fast as barging.
        Thanks to this new algorithm, you can now have both of these things at the same time.
        
        This change makes WTF::Lock eventually fair. We can almost (more on the caveats below)
        guarantee that the time it takes to grab a lock is N * max(1ms, S). In other words, critical
        sections that are longer than 1ms are always fair. For shorter critical sections, the amount
        of time that any thread waits is 1ms times the number of threads. There are some caveats
        that arise from our use of randomness, but even then, in the limit as the critical section
        length goes to infinity, the lock becomes fair. The corner cases are unlikely to happen; our
        experiments show that the lock becomes exactly as fair as a FIFO lock for any critical
        section that is 1ms or longer.
        
        The fairness mechanism is broken into two parts. WTF::Lock can now choose to unlock a lock
        fairly or unfairly thanks to the new ParkingLot token mechanism. WTF::Lock knows when to use
        fair unlocking based on a timeout mechanism in ParkingLot called timeToBeFair.
        
        ParkingLot::unparkOne() and ParkingLot::parkConditionally() can now communicate with each
        other via a token. unparkOne() can pass a token, which parkConditionally() will return. This
        change also makes parkConditionally() a lot more precise about when it was unparked due to a
        call to unparkOne(). If unparkOne() is told that a thread was unparked then this thread is
        guaranteed to report that it was unparked rather than timing out, and that thread is
        guaranteed to get the token that unparkOne() passed. The token is an intptr_t. We use it as
        a boolean variable in WTF::Lock, but you could use it to pass arbitrary data structures. By
        default, the token is zero. WTF::Lock's unlock() will pass 1 as the token if it is doing
        fair unlocking. In that case, unlock() will not release the lock, and lock() will know that
        it holds the lock as soon as parkConditionally() returns. Note that this algorithm relies
        on unparkOne() invoking WTF::Lock's callback while the queue lock is held, so that WTF::Lock
        can make a decision about unlock strategy and inject a token while it has complete knowledge
        over the state of the queue. As such, it's not immediately obvious how to implement this
        algorithm on top of futexes. You really need ParkingLot!
        
        WTF::Lock does not use fair unlocking every time. We expose a new API, Lock::unlockFairly(),
        which forces the fair unlocking behavior. Additionally, ParkingLot now maintains a
        per-bucket stochastic fairness timeout. When the timeout fires, the unparkOne() callback
        sees UnparkResult::timeToBeFair = true. This timeout is set to be anywhere from 0ms to 1ms
        at random. When a dequeue happens and there are threads that actually get dequeued, we check
        if the time since the last unfair unlock (the last time timeToBeFair was set to true) is
        more than the timeout amount. If so, then we set timeToBeFair to true and reset the timeout.
        This means that in the absence of ParkingLot collisions, unfair unlocking is guaranteed to
        happen at least once per millisecond. It will happen at 2 KHz on average. If there are
        collisions, then each collision adds one millisecond to the worst case (and 0.5 ms to the
        average case). The reason why we don't just use a fixed 1ms timeout is that we want to avoid
        resonance. Imagine a program in which some thread acquires a lock at 1 KHz in-phase with the
        timeToBeFair timeout. Then this thread would be the benefactor of fairness to the detriment
        of everyone else. Randomness ensures that we aren't too fair to any one thread.
        
        Empirically, this is neutral on our major benchmarks like JetStream but it's an enormous
        improvement in LockFairnessTest. It's common for an unfair lock (either our BargingLock, the
        old WTF::Lock, any of the other futex-based locks that barge, or new os_unfair_lock) to
        allow only one thread to hold the lock during a whole second in which each thread is holding
        the lock for 1ms at a time. This is because in a barging lock, releasing a lock after
        holding it for 1ms and then reacquiring it immediately virtually ensures that none of the
        other threads can wake up in time to grab it before it's relocked. But the new WTF::Lock
        handles this case like a champ: each thread gets equal turns.
        
        Here's some data. If we launch 10 threads and have each of them run for 1 second while
        repeatedly holding a critical section for 1ms, then here's how many times each thread gets
        to hold the lock using the old WTF::Lock algorithm:
        
        799, 6, 1, 1, 1, 1, 1, 1, 1, 1
        
        One thread hogged the lock for almost the whole time! With the new WTF::Lock, the lock
        becomes totally fair:
        
        80, 79, 79, 79, 79, 79, 79, 80, 80, 79
        
        I don't know of anyone creating such an automatically-fair adaptive lock before, so I think
        that this is a pretty awesome advancement to the state of the art!
        
        This change is good for three reasons:
        
        - We do have long critical sections in WebKit and we don't want to have to worry about
          starvation. This reduces the likelihood that we will see starvation due to our lock
          strategy.
        
        - I was talking to ggaren about bmalloc's locking needs, and he wanted unlockFairly() or
          lockFairly() or some moral equivalent for the scavenger thread.
        
        - If we use a WTF::Lock to manage heap access in a multithreaded GC, we'll need the ability
          to unlock and relock without barging.

        * benchmarks/LockFairnessTest.cpp:
        (main):
        * benchmarks/ToyLocks.h:
        * wtf/Condition.h:
        (WTF::ConditionBase::waitUntil):
        (WTF::ConditionBase::notifyOne):
        * wtf/Lock.cpp:
        (WTF::LockBase::lockSlow):
        (WTF::LockBase::unlockSlow):
        (WTF::LockBase::unlockFairlySlow):
        (WTF::LockBase::unlockSlowImpl):
        * wtf/Lock.h:
        (WTF::LockBase::try_lock):
        (WTF::LockBase::unlock):
        (WTF::LockBase::unlockFairly):
        (WTF::LockBase::isHeld):
        (WTF::LockBase::isFullyReset):
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionallyImpl):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkOneImpl):
        (WTF::ParkingLot::unparkAll):
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::compareAndPark):
        (WTF::ParkingLot::unparkOne):

2016-07-17  Myles C. Maxfield  <mmaxfield@apple.com>

        Support new emoji group candidates
        https://bugs.webkit.org/show_bug.cgi?id=159755
        <rdar://problem/27325521>

        Reviewed by Dean Jackson.

        This patch doesn't update the rules for our cursor movement iterator, because
        I don't know the language used for implementing these rules. These rules will
        be updated in the near future. When they do,
        editing/deleting/delete-emoji-expected.txt will need to be updated.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::cursorMovementIterator):

2016-07-16  Chris Dumez  <cdumez@apple.com>

        Add move constructor / assignment operator to ListHashSet
        https://bugs.webkit.org/show_bug.cgi?id=159837

        Reviewed by Darin Adler.

        Add move constructor / assignment operator to ListHashSet.

        * wtf/ListHashSet.h:
        (WTF::ListHashSetConstIterator::operator++):
        (WTF::U>::ListHashSet):
        (WTF::=):
        (WTF::U>::clear):
        (WTF::U>::appendNode):
        (WTF::U>::prependNode):
        (WTF::U>::deleteAllNodes):
        (WTF::ListHashSetNode::ListHashSetNode): Deleted.

2016-07-15  Chris Dumez  <cdumez@apple.com>

        Use emptyString() / nullAtom when possible
        https://bugs.webkit.org/show_bug.cgi?id=159850

        Reviewed by Ryosuke Niwa.

        Use emptyString() / nullAtom when possible, for performance.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::convertASCIICase):

2016-07-15  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r203304.

        This is wrong because of Node* entries in the internal HashMap

        Reverted changeset:

        "Add move constructor / assignment operator to ListHashSet"
        https://bugs.webkit.org/show_bug.cgi?id=159837
        http://trac.webkit.org/changeset/203304

2016-07-15  Chris Dumez  <cdumez@apple.com>

        Add move constructor / assignment operator to ListHashSet
        https://bugs.webkit.org/show_bug.cgi?id=159837

        Reviewed by Alex Christensen.

        Add move constructor / assignment operator to ListHashSet.

        * wtf/ListHashSet.h:

2016-07-15  Geoffrey Garen  <ggaren@apple.com>

        Added a makeRef<T> helper
        https://bugs.webkit.org/show_bug.cgi?id=159835

        Reviewed by Andreas Kling.

        Anders told me to!

        * wtf/Ref.h:
        (WTF::makeRef): Helper function to do type inference for you.

2016-07-15  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r203266.

        This change caused editing/deleting/delete-emoji.html to time
        out on El Capitan, crash under GuardMalloc

        Reverted changeset:

        "Support new emoji group candidates"
        https://bugs.webkit.org/show_bug.cgi?id=159755
        http://trac.webkit.org/changeset/203266

2016-07-15  Csaba Osztrogonác  <ossy@webkit.org>

        Revert r202560 to fix the ARMv7 build with ARM instruction set
        https://bugs.webkit.org/show_bug.cgi?id=159707

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: Revert r202560.

2016-07-14  Myles C. Maxfield  <mmaxfield@apple.com>

        Support new emoji group candidates
        https://bugs.webkit.org/show_bug.cgi?id=159755
        <rdar://problem/27325521>

        Reviewed by Dean Jackson.

        This patch doesn't update the rules for our cursor movement iterator, because
        I don't know the language used for implementing these rules. These rules will
        be updated in the near future. When they do,
        editing/deleting/delete-emoji-expected.txt will need to be updated.

        * wtf/text/TextBreakIterator.cpp:
        (WTF::cursorMovementIterator):

2016-07-14  Alex Christensen  <achristensen@webkit.org>

        Allow RefPtrs of const RefCounted types
        https://bugs.webkit.org/show_bug.cgi?id=158269

        Reviewed by Anders Carlsson.

        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref):
        (WTF::RefCountedBase::~RefCountedBase):
        (WTF::RefCountedBase::derefBase):
        (WTF::RefCounted::deref):
        Creating references to a const object does not really modify the object,
        so everything in RefCounted is now mutable, and ref and deref are const.

2016-07-14  Chris Dumez  <cdumez@apple.com>

        Avoid an extra heap allocation when dispatching Functions to WorkQueue
        https://bugs.webkit.org/show_bug.cgi?id=158367

        Reviewed by Anders Carlsson.

        Avoid an extra heap allocation when dispatching Functions to WorkQueue
        by adding leakCallable() / adoptCallable() functions to Function.

        * wtf/Function.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2016-07-13  Myles C. Maxfield  <mmaxfield@apple.com>

        Addressing post-review comments after r203119
        https://bugs.webkit.org/show_bug.cgi?id=159749

        Unreviewed.

        * wtf/text/StringView.h:
        (WTF::StringView::CodePoints::Iterator::Iterator):
        (WTF::StringView::CodePoints::Iterator::operator*):
        (WTF::StringView::CodePoints::Iterator::operator==):

2016-07-13  Enrica Casucci  <enrica@apple.com>

        Update supported platforms in xcconfig files to match the sdk names.
        https://bugs.webkit.org/show_bug.cgi?id=159728

        Reviewed by Tim Horton.

        * Configurations/Base.xcconfig:

2016-07-13  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] WebKitGtk+ uses too many file descriptors
        https://bugs.webkit.org/show_bug.cgi?id=152316

        Reviewed by Michael Catanzaro.

        Add helper functions to duplicate a file descriptor setting close on exec flag, and also to set close on exec
        flag to an existing file descriptor.

        * wtf/UniStdExtras.h:
        * wtf/UniStdExtras.cpp
        (WTF::setCloseOnExec):
        (WTF::dupCloseOnExec):

2016-07-12  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Array.prototype.join() fails some conformance tests
        https://bugs.webkit.org/show_bug.cgi?id=159657

        Reviewed by Saam Barati.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::number):
        * wtf/text/AtomicString.h:

2016-07-12  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r203131.
        https://bugs.webkit.org/show_bug.cgi?id=159698

        This change caused an existing LayoutTest to time out on debug
        testers (Requested by ryanhaddad on #webkit).

        Reverted changeset:

        "[JSC] Array.prototype.join() fails some conformance tests"
        https://bugs.webkit.org/show_bug.cgi?id=159657
        http://trac.webkit.org/changeset/203131

2016-07-12  Filip Pizlo  <fpizlo@apple.com>

        platformUserPreferredLanguages on Mac should not try to put the region into the language
        https://bugs.webkit.org/show_bug.cgi?id=159693

        Rubber stamped by Alexey Proskuryakov.
        
        Currently, navigator.language is the thing that we use as the BCP-47 tag in our Intl code
        when certain APIs are called without a locale argument.  That mostly makes sense, and is
        deeply wired into our engine.

        In r200105, we made Intl aware of the region as a separate thing from the language by having
        platformUserPreferredLanguages() return something like a BCP-47 tag that was
        <language>-<region>.  For example, if I told System Preferences that I want to speak English
        but live in Poland then we'd get "en-pl".  This had the effect of making Intl APIs format
        dates using Polish formatting, for example.

        But this is an odd change, since that same function also feeds into navigator.language.
        "en-pl" isn't what we want there, since my System Preferences settings aren't supposed to
        mean that I want to speak Polish-style English.  There's no such thing.

        It may be worthwhile to wire the region settings more elegantly into Intl, but if we do that,
        it should be via a mechanism that is separate from navigator.language. So, this change simply
        reverts r200105.

        * wtf/PlatformUserPreferredLanguagesMac.mm:
        (WTF::httpStyleLanguageCode):
        (WTF::platformUserPreferredLanguages):
        (WTF::isValidICUCountryCode): Deleted.

2016-07-12  Per Arne Vollan  <pvollan@apple.com>

        [Win] Fix for build error when trying to version stamp dll.
        https://bugs.webkit.org/show_bug.cgi?id=159692

        Reviewed by Brent Fulgham.

        Use correct path to version stamp script.

        * wtf/CMakeLists.txt:

2016-07-12  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Array.prototype.join() fails some conformance tests
        https://bugs.webkit.org/show_bug.cgi?id=159657

        Reviewed by Saam Barati.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::number):
        * wtf/text/AtomicString.h:

2016-07-12  Myles C. Maxfield  <mmaxfield@apple.com>

        Relax ordering requirements on StringView::CodePoints iterator
        https://bugs.webkit.org/show_bug.cgi?id=159609

        Reviewed by Darin Adler.

        Previously, there was a requirement where if you use a CodePoints
        iterator, you couldn't dereference twice in a row or increment
        twice in a row. This restriction is unnecessary.

        * wtf/text/StringView.h:
        (WTF::StringView::CodePoints::Iterator::Iterator):
        (WTF::StringView::CodePoints::Iterator::advanceCurrentCodePoint):
        (WTF::StringView::CodePoints::Iterator::operator*):
        (WTF::StringView::CodePoints::Iterator::operator==):

2016-07-12  Csaba Osztrogonác  <ossy@webkit.org>

        JSCOnly bulidfix after r203078
        https://bugs.webkit.org/show_bug.cgi?id=159669

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformJSCOnly.cmake:
        * wtf/text/jsconly/TextBreakIteratorInternalICUJSCOnly.cpp: Added.
        (WTF::currentSearchLocaleID):
        (WTF::currentTextBreakLocaleID):

2016-07-12  Per Arne Vollan  <pvollan@apple.com>

        [Win] DLLs are missing version information.
        https://bugs.webkit.org/show_bug.cgi?id=159349

        Reviewed by Brent Fulgham.

        Generate autoversion.h and run perl version stamp utility.

        * wtf/CMakeLists.txt:

2016-07-11  Myles C. Maxfield  <mmaxfield@apple.com>

        Implement grapheme cluster iterator on StringView
        https://bugs.webkit.org/show_bug.cgi?id=159598

        Reviewed by Anders Carlsson.

        This is in preparation for honoring the second argument to FontFaceSet.load().

        * wtf/text/StringView.cpp:
        (WTF::StringView::GraphemeClusters::Iterator::Impl::Impl):
        (WTF::StringView::GraphemeClusters::Iterator::Impl::operator++):
        (WTF::StringView::GraphemeClusters::Iterator::Impl::operator*):
        (WTF::StringView::GraphemeClusters::Iterator::Impl::operator==):
        (WTF::StringView::GraphemeClusters::Iterator::Impl::computeIndexEnd):
        (WTF::StringView::GraphemeClusters::Iterator::Iterator):
        (WTF::StringView::GraphemeClusters::Iterator::~Iterator):
        (WTF::StringView::GraphemeClusters::Iterator::operator*):
        (WTF::StringView::GraphemeClusters::Iterator::operator==):
        (WTF::StringView::GraphemeClusters::Iterator::operator!=):
        * wtf/text/StringView.h:
        (WTF::StringView::GraphemeClusters::GraphemeClusters):
        * text/TextBreakIterator.cpp:
        (WebCore::NonSharedCharacterBreakIterator::NonSharedCharacterBreakIterator):
        * text/TextBreakIterator.h:

2016-07-10  Myles C. Maxfield  <mmaxfield@apple.com>

        Move breaking iterator code to WTF
        https://bugs.webkit.org/show_bug.cgi?id=159594

        Reviewed by Alex Christensen.

        This is in preparation for giving StringView a GraphemeClusters iterator.
        Such an interator needs to be implemented on top of our breaking iterator
        code.

        * WTF.xcodeproj/project.pbxproj:
        * icu/unicode/ubrk.h: Added.
        * icu/unicode/utext.h: Renamed from Source/WebCore/icu/unicode/utext.h.
        * wtf/CMakeLists.txt:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/TinyLRUCache.h:
        * wtf/text/LineBreakIteratorPoolICU.h: Renamed from Source/WebCore/platform/text/LineBreakIteratorPoolICU.h.
        (WTF::LineBreakIteratorPool::LineBreakIteratorPool):
        (WTF::LineBreakIteratorPool::sharedPool):
        (WTF::LineBreakIteratorPool::makeLocaleWithBreakKeyword):
        (WTF::LineBreakIteratorPool::take):
        (WTF::LineBreakIteratorPool::put):
        * wtf/text/TextBreakIterator.cpp: Renamed from Source/WebCore/platform/text/TextBreakIterator.cpp.
        (WTF::initializeIterator):
        (WTF::initializeIteratorWithRules):
        (WTF::setTextForIterator):
        (WTF::setContextAwareTextForIterator):
        (WTF::wordBreakIterator):
        (WTF::sentenceBreakIterator):
        (WTF::cursorMovementIterator):
        (WTF::acquireLineBreakIterator):
        (WTF::releaseLineBreakIterator):
        (WTF::mapLineIteratorModeToRules):
        (WTF::isCJKLocale):
        (WTF::openLineBreakIterator):
        (WTF::closeLineBreakIterator):
        (WTF::compareAndSwapNonSharedCharacterBreakIterator):
        (WTF::NonSharedCharacterBreakIterator::NonSharedCharacterBreakIterator):
        (WTF::NonSharedCharacterBreakIterator::~NonSharedCharacterBreakIterator):
        (WTF::textBreakFirst):
        (WTF::textBreakLast):
        (WTF::textBreakNext):
        (WTF::textBreakPrevious):
        (WTF::textBreakPreceding):
        (WTF::textBreakFollowing):
        (WTF::textBreakCurrent):
        (WTF::isTextBreak):
        (WTF::isWordTextBreak):
        (WTF::numGraphemeClusters):
        (WTF::numCharactersInGraphemeClusters):
        * wtf/text/TextBreakIterator.h: Renamed from Source/WebCore/platform/text/TextBreakIterator.h.
        (WTF::LazyLineBreakIterator::LazyLineBreakIterator):
        (WTF::LazyLineBreakIterator::~LazyLineBreakIterator):
        (WTF::LazyLineBreakIterator::string):
        (WTF::LazyLineBreakIterator::isLooseCJKMode):
        (WTF::LazyLineBreakIterator::lastCharacter):
        (WTF::LazyLineBreakIterator::secondToLastCharacter):
        (WTF::LazyLineBreakIterator::setPriorContext):
        (WTF::LazyLineBreakIterator::updatePriorContext):
        (WTF::LazyLineBreakIterator::resetPriorContext):
        (WTF::LazyLineBreakIterator::priorContextLength):
        (WTF::LazyLineBreakIterator::get):
        (WTF::LazyLineBreakIterator::resetStringAndReleaseIterator):
        (WTF::NonSharedCharacterBreakIterator::operator TextBreakIterator*):
        * wtf/text/TextBreakIteratorInternalICU.h: Renamed from Source/WebCore/platform/text/TextBreakIteratorInternalICU.h.
        * wtf/text/efl/TextBreakIteratorInternalICUEfl.cpp: Renamed from Source/WebCore/platform/text/efl/TextBreakIteratorInternalICUEfl.cpp.
        (WebCore::currentSearchLocaleID):
        (WebCore::currentTextBreakLocaleID):
        * wtf/text/gtk/TextBreakIteratorInternalICUGtk.cpp: Renamed from Source/WebCore/platform/text/gtk/TextBreakIteratorInternalICUGtk.cpp.
        (WebCore::currentSearchLocaleID):
        (WebCore::currentTextBreakLocaleID):
        * wtf/text/icu/UTextProvider.cpp: Renamed from Source/WebCore/platform/text/icu/UTextProvider.cpp.
        (WTF::fixPointer):
        (WTF::uTextCloneImpl):
        * wtf/text/icu/UTextProvider.h: Renamed from Source/WebCore/platform/text/icu/UTextProvider.h.
        (WTF::uTextProviderContext):
        (WTF::initializeContextAwareUTextProvider):
        (WTF::uTextAccessPinIndex):
        (WTF::uTextAccessInChunkOrOutOfRange):
        * wtf/text/icu/UTextProviderLatin1.cpp: Renamed from Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp.
        (WTF::uTextLatin1Clone):
        (WTF::uTextLatin1NativeLength):
        (WTF::uTextLatin1Access):
        (WTF::uTextLatin1Extract):
        (WTF::uTextLatin1MapOffsetToNative):
        (WTF::uTextLatin1MapNativeIndexToUTF16):
        (WTF::uTextLatin1Close):
        (WTF::openLatin1UTextProvider):
        (WTF::textLatin1ContextAwareGetCurrentContext):
        (WTF::textLatin1ContextAwareMoveInPrimaryContext):
        (WTF::textLatin1ContextAwareSwitchToPrimaryContext):
        (WTF::textLatin1ContextAwareMoveInPriorContext):
        (WTF::textLatin1ContextAwareSwitchToPriorContext):
        (WTF::uTextLatin1ContextAwareClone):
        (WTF::uTextLatin1ContextAwareNativeLength):
        (WTF::uTextLatin1ContextAwareAccess):
        (WTF::uTextLatin1ContextAwareExtract):
        (WTF::uTextLatin1ContextAwareClose):
        (WTF::openLatin1ContextAwareUTextProvider):
        * wtf/text/icu/UTextProviderLatin1.h: Renamed from Source/WebCore/platform/text/icu/UTextProviderLatin1.h.
        * wtf/text/icu/UTextProviderUTF16.cpp: Renamed from Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp.
        (WTF::textUTF16ContextAwareGetCurrentContext):
        (WTF::textUTF16ContextAwareMoveInPrimaryContext):
        (WTF::textUTF16ContextAwareSwitchToPrimaryContext):
        (WTF::textUTF16ContextAwareMoveInPriorContext):
        (WTF::textUTF16ContextAwareSwitchToPriorContext):
        (WTF::uTextUTF16ContextAwareClone):
        (WTF::uTextUTF16ContextAwareNativeLength):
        (WTF::uTextUTF16ContextAwareAccess):
        (WTF::uTextUTF16ContextAwareExtract):
        (WTF::uTextUTF16ContextAwareClose):
        (WTF::openUTF16ContextAwareUTextProvider):
        * wtf/text/icu/UTextProviderUTF16.h: Renamed from Source/WebCore/platform/text/icu/UTextProviderUTF16.h.
        * wtf/text/mac/TextBreakIteratorInternalICUMac.mm: Renamed from Source/WebCore/platform/text/mac/TextBreakIteratorInternalICUMac.mm.
        (WTF::textBreakLocalePreference):
        (WTF::topLanguagePreference):
        (WTF::getLocale):
        (WTF::getSearchLocale):
        (WTF::currentSearchLocaleID):
        (WTF::getTextBreakLocale):
        (WTF::currentTextBreakLocaleID):
        * wtf/text/win/TextBreakIteratorInternalICUWin.cpp: Renamed from Source/WebCore/platform/text/win/TextBreakIteratorInternalICUWin.cpp.
        (WebCore::currentSearchLocaleID):
        (WebCore::currentTextBreakLocaleID):

2016-07-08  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r202799.
        https://bugs.webkit.org/show_bug.cgi?id=159568

        Caused build failure (Requested by perarne on #webkit).

        Reverted changeset:

        "[Win] DLLs are missing version information."
        https://bugs.webkit.org/show_bug.cgi?id=159349
        http://trac.webkit.org/changeset/202799

2016-07-08  Jiewen Tan  <jiewen_tan@apple.com>

        Define DYLD_MACOSX_VERSION_10_12
        https://bugs.webkit.org/show_bug.cgi?id=159525
        <rdar://problem/26250296>

        Reviewed by Brent Fulgham.

        * wtf/spi/darwin/dyldSPI.h:

2016-07-01  Jer Noble  <jer.noble@apple.com>

        REGRESSION (r202641): Netflix playback stalls after a few seconds
        https://bugs.webkit.org/show_bug.cgi?id=159365

        Reviewed by Eric Carlson.

        Add a isBetween() convenience method.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::isBetween):
        * wtf/MediaTime.h:

2016-07-03  Per Arne Vollan  <pvollan@apple.com>

        [Win] DLLs are missing version information.
        https://bugs.webkit.org/show_bug.cgi?id=159349

        Reviewed by Brent Fulgham.

        Generate autoversion.h in the prebuild step.
        Run the perl version stamp utility.

        * wtf/CMakeLists.txt:

2016-07-03  Saam Barati  <sbarati@apple.com>

        BytecodeGenerator::getVariablesUnderTDZ is too conservative
        https://bugs.webkit.org/show_bug.cgi?id=159387

        Reviewed by Filip Pizlo.

        I've templatized SmallPtrSet on its SmallArraySize instead
        of it always being 8.  

        * wtf/SmallPtrSet.h:
        (WTF::SmallPtrSet::SmallPtrSet):
        (WTF::SmallPtrSet::add):
        (WTF::SmallPtrSet::iterator::operator!=):
        (WTF::SmallPtrSet::bucket):

2016-07-03  Filip Pizlo  <fpizlo@apple.com>

        Ugh. Once again, unreviewed, roll out unintentional commit in r202790.

        * benchmarks/LockFairnessTest.cpp:
        (main):

2016-07-02  Dan Bernstein  <mitz@apple.com>

        Build fix.

        * wtf/Assertions.cpp:

2016-07-02  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, roll back unintentional commit in r202778.

        * benchmarks/LockFairnessTest.cpp:
        (main):

2016-07-01  Jer Noble  <jer.noble@apple.com>

        Deadlock inside -[WebCoreNSURLSession dealloc]
        https://bugs.webkit.org/show_bug.cgi?id=159331
        <rdar://problem/27122716>

        Reviewed by Alex Christensen.

        A Function<> object can wrap any callable type, including a C++ lambda.

        dispatchFunctionsFromMainThread() holds a lock while iterating over the functions in
        functionQueue(), and during ths iteration, the previous callable object is destroyed by
        assigning the result of functionQueue().takeFirst(). Because lambdas (and other callables,
        like functors) can own objects, destroying this callable can have side effects, and if one
        of those side effects is to call callOnMainThread(), this can deadlock.

        Move this side-effect-having call outside the locked block by clearing the function object
        immediately after calling it.

        * wtf/MainThread.cpp:
        (WTF::dispatchFunctionsFromMainThread):

2016-06-29  Jer Noble  <jer.noble@apple.com>

        Adopt MediaRemote.
        https://bugs.webkit.org/show_bug.cgi?id=159250

        Reviewed by Eric Carlson.

        Add USE_MEDIAREMOTE.

        * wtf/Platform.h:

2016-06-28  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r202580.
        https://bugs.webkit.org/show_bug.cgi?id=159245

        Caused all WKTR tests to fail on GuardMalloc and Production
        only for unknown reasons, investigating offline. (Requested by
        brrian on #webkit).

        Reverted changeset:

        "RunLoop::Timer should use constructor templates instead of
        class templates"
        https://bugs.webkit.org/show_bug.cgi?id=159153
        http://trac.webkit.org/changeset/202580

2016-06-28  Brian Burg  <bburg@apple.com>

        RunLoop::Timer should use constructor templates instead of class templates
        https://bugs.webkit.org/show_bug.cgi?id=159153

        Reviewed by Alex Christensen.

        Refactor RunLoop::Timer to align with WebCore::Timer. Use a constructor
        template instead of a class template. Store a bound std::function rather than
        a templated member and function. Add a constructor that takes a std::function.

        * wtf/RunLoop.h:
        (WTF::RunLoop::Timer::Timer):
        (WTF::RunLoop::Timer::fired):

2016-06-28  Tomas Popela  <tpopela@redhat.com>

        THUMB2 support not correctly detected on Fedora with GCC 6.1.
        https://bugs.webkit.org/show_bug.cgi?id=159083

        Reviewed by Carlos Garcia Campos.

        On Fedora 24 with GCC 6.1. the __thumb2__ and __thumb__ are not
        defined so the detection of THUMB2 support will fail. Look also
        whether the __ARM_ARCH_ISA_THUMB is defined to fix the THUMB2
        detection.

        * wtf/Platform.h:

2016-06-27  Joseph Pecoraro  <pecoraro@apple.com>

        Remove now unused WTF::findNextLineStart
        https://bugs.webkit.org/show_bug.cgi?id=159157

        Reviewed by Mark Lam.

        Unused after r202498.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::findNextLineStart): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::findNextLineStart): Deleted.
        * wtf/text/WTFString.h:
        (WTF::String::findNextLineStart): Deleted.

2016-06-21  Anders Carlsson  <andersca@apple.com>

        Rename NoncopyableFunction to Function
        https://bugs.webkit.org/show_bug.cgi?id=158354

        Reviewed by Chris Dumez.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CrossThreadTask.h:
        (WTF::CrossThreadTask::CrossThreadTask):
        * wtf/Function.h: Renamed from Source/WTF/wtf/NoncopyableFunction.h.
        * wtf/FunctionDispatcher.h:
        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        * wtf/MainThread.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/efl/DispatchQueueWorkItemEfl.h:
        (WorkItem::WorkItem):
        (TimerWorkItem::create):
        (TimerWorkItem::TimerWorkItem):
        * wtf/efl/WorkQueueEfl.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::TimerBase::ScheduledTask::create):
        (WTF::RunLoop::TimerBase::ScheduledTask::ScheduledTask):
        (WTF::RunLoop::dispatchAfter):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::RunLoop::dispatchAfter):
        * wtf/win/WorkItemWin.cpp:
        (WTF::WorkItemWin::WorkItemWin):
        (WTF::WorkItemWin::create):
        (WTF::HandleWorkItem::HandleWorkItem):
        (WTF::HandleWorkItem::createByAdoptingHandle):
        * wtf/win/WorkItemWin.h:
        (WTF::WorkItemWin::function):
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2016-06-23  David Kilzer  <ddkilzer@apple.com>

        REGRESSION (r202380): iOS 9.x internal builds are broken

        Follow-up fix for: Enable window.open() for existing versions of Secret Society
        <https://webkit.org/b/159049>
        <rdar://problem/26528349>

        * wtf/spi/darwin/dyldSPI.h: Define DYLD_IOS_VERSION_10_0 when
        building on internal SDKs older than iOS 10.

2016-06-23  John Wilander  <wilander@apple.com>

        Enable window.open() for existing versions of Secret Society
        https://bugs.webkit.org/show_bug.cgi?id=159049
        <rdar://problem/26528349>
        
        Reviewed by Andy Estes.

        The Secret Society Hidden Mystery app has a broken version check treating iOS 10
        as iOS 1 on iPads. Therefore it believes it can use window.open() in a tap
        handler. We should allow the existing versions of the app to do this to not break
        them.

        * wtf/spi/darwin/dyldSPI.h:
            Added DYLD_IOS_VERSION_10_0.

2016-06-21  Said Abou-Hallawa  <sabouhallawa@apple,com>

        Add system tracing points for requestAnimationFrame() workflow
        https://bugs.webkit.org/show_bug.cgi?id=158723

        Reviewed by Simon Fraser.

        Define new trace score codes for requestAnimationFrame().

        * wtf/SystemTracing.h:
        (WTF::TracePoint):
        (WTF::TraceScope::TraceScope):
        (WTF::TraceScope::~TraceScope):

2016-06-20  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r202136.
        https://bugs.webkit.org/show_bug.cgi?id=158932

        JSBench wasn't regressed by r202002 and r202111 on iOS after
        all (Requested by rniwa_ on #webkit).

        Reverted changeset:

        "Unreviewed, rolling out r202002 and r202111."
        https://bugs.webkit.org/show_bug.cgi?id=158638
        http://trac.webkit.org/changeset/202136

2016-06-17  Chris Dumez  <cdumez@apple.com>

        Optimize parseCacheHeader() by using StringView
        https://bugs.webkit.org/show_bug.cgi?id=158891

        Reviewed by Darin Adler.

        Add a StringView::find() overload which takes a CharacterMatchFunction
        to match the one on String.

        * wtf/text/StringView.h:
        (WTF::StringView::find):

2016-06-17  Mark Lam  <mark.lam@apple.com>

        OOM Assertion failure in JSON.stringify.
        https://bugs.webkit.org/show_bug.cgi?id=158794
        <rdar://problem/26826254>

        Reviewed by Saam Barati.

        The bug was actually in StringBuilder::appendQuotedJSONString() where it failed
        to detect an imminent unsigned int overflow.  The fix is to use Checked<unsigned>
        for the needed math, and RELEASE_ASSERT afterwards that we did not overflow.

        I also added more assertions to detect sooner if any there are any problems with
        StringBuilder's m_buffer or m_length being incorrectly sized.  These assertions
        have been run on the JSC and layout tests without any issue.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::resize):
        (WTF::StringBuilder::allocateBuffer):
        (WTF::StringBuilder::allocateBufferUpConvert):
        (WTF::StringBuilder::reallocateBuffer<LChar>):
        (WTF::StringBuilder::reallocateBuffer<UChar>):
        (WTF::StringBuilder::reserveCapacity):
        (WTF::StringBuilder::appendUninitializedSlow):
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::appendQuotedJSONString):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::swap):

2016-06-14  Filip Pizlo  <fpizlo@apple.com>

        Baseline JIT should be concurrent
        https://bugs.webkit.org/show_bug.cgi?id=158755

        Reviewed by Geoffrey Garen.
        
        The concurrent baseline JIT needs to be able to clone bytecode to get a consistent snapshot.
        So, this adds such a method.

        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        (WTF::RefCountedArray::clone):

2016-06-16  Chris Dumez  <cdumez@apple.com>

        No need to ref connection in lambda inside NetworkResourceLoader::tryStoreAsCacheEntry()
        https://bugs.webkit.org/show_bug.cgi?id=158862

        Reviewed by Darin Adler.

        Add NoncopyableFunction constructor that takes a nullptr_t in, in order
        to match the std::function API and make porting from one to the other
        easier.

        * wtf/NoncopyableFunction.h:

2016-06-16  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r202002 and r202111.

        Ryosuke says this was a JSBench regression on iOS

        Reverted changesets:

        "Make HashMap and HashSet work with Refs"
        https://bugs.webkit.org/show_bug.cgi?id=158638
        http://trac.webkit.org/changeset/202002

        "Improve HashMap and HashSet support for Ref"
        https://bugs.webkit.org/show_bug.cgi?id=158789
        http://trac.webkit.org/changeset/202111

2016-06-15  Chris Dumez  <cdumez@apple.com>

        [Cocoa] Clean up / optimize ResourceResponse::platformLazyInit(InitLevel)
        https://bugs.webkit.org/show_bug.cgi?id=158809

        Reviewed by Darin Adler.

        Add toAtomicString() method to StringView to avoid having to call toString()
        and then atomizing the String at call sites.

        * wtf/text/StringView.h:
        (WTF::StringView::toAtomicString):

2016-06-15  Sam Weinig  <sam@webkit.org>

        Improve HashMap and HashSet support for Ref
        https://bugs.webkit.org/show_bug.cgi?id=158789

        Reviewed by Chris Dumez.

        Tests: Add more cases to WTF_HashMap.Ref_Key, WTF_HashMap.Ref_Value and WTF_HashSet.Ref

        * wtf/HashMap.h:
        * wtf/HashSet.h:
        Add a MappedTakeType typedef and rework the take functions to use it and HashTraits::take(...).

        * wtf/HashTraits.h:
        (WTF::GenericHashTraits::assignToEmpty):
        Move to GenericHashTraits rather than GenericHashTraitsBase, since it is not different
        between integral and non-integral HashTraits.

        (WTF::GenericHashTraits::take):
        Add a trait function for take that defaults as a forward. This allows us to override take
        just like we do with get/peek.

        (WTF::HashTraits<Ref<P>>::emptyValue):
        Remove unnecessary explicit construction.

        (WTF::HashTraits<Ref<P>>::peek):
        Fix assertion that could happen if you did a HashMap.get() on an empty Ref value.

        (WTF::HashTraits<Ref<P>>::take):
        Make the TakeType of a Ref<P> be Optional<Ref<P>>, to avoid having empty
        Refs returned from HashMap and HashSet. Implement an explicit take() function to
        construct one.

        (WTF::HashTraits<Ref<P>>::customDeleteBucket): Deleted.
        Remove unnecessary customDeleteBucket implementation. Ref does not assign nullptr to
        it's m_ptr in destruction, so there is no dead store to avoid here.

        * wtf/Ref.h:
        (WTF::Ref::ptrAllowingHashTableEmptyValue):
        Add HashTrait helper to allow getting the value of m_ptr even when it is null. This
        allows us to avoid a branch in HashTraits<Ref<P>>::peek().

2016-06-15  Konstantin Tokarev  <annulen@yandex.ru>

        Only Mac port needs ObjC API for JSC
        https://bugs.webkit.org/show_bug.cgi?id=158780

        Reviewed by Philippe Normand.

        * wtf/FeatureDefines.h:

2016-06-15  Yusuke Suzuki  <utatane.tea@gmail.com>

        Unreviewed, follow up patch for r202092
        https://bugs.webkit.org/show_bug.cgi?id=158661

        During checking Windows port on EWS, accidentally introduce the regression.

        * wtf/Platform.h:

2016-06-15  Yusuke Suzuki  <utatane.tea@gmail.com>

        [JSC] Move calling convention flags to WTF
        https://bugs.webkit.org/show_bug.cgi?id=158661

        Reviewed by Keith Miller.

        * wtf/Platform.h:

2016-06-14  Myles C. Maxfield  <mmaxfield@apple.com>

        Honor bidi unicode codepoints
        https://bugs.webkit.org/show_bug.cgi?id=149170
        <rdar://problem/26527378>

        Reviewed by Simon Fraser.

        * wtf/unicode/CharacterNames.h:

2016-06-14  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r202057.
        https://bugs.webkit.org/show_bug.cgi?id=158749

        This change broke the Windows build. (Requested by ryanhaddad
        on #webkit).

        Reverted changeset:

        "Honor bidi unicode codepoints"
        https://bugs.webkit.org/show_bug.cgi?id=149170
        http://trac.webkit.org/changeset/202057

2016-06-14  Myles C. Maxfield  <mmaxfield@apple.com>

        Honor bidi unicode codepoints
        https://bugs.webkit.org/show_bug.cgi?id=149170
        <rdar://problem/26527378>

        Reviewed by Simon Fraser.

        * wtf/unicode/CharacterNames.h:

2016-06-13  Alex Christensen  <achristensen@webkit.org>

        Add WebSocketProvider stub
        https://bugs.webkit.org/show_bug.cgi?id=158702

        Reviewed by Brady Eidson.

        * wtf/UniqueRef.h:
        (WTF::UniqueRef::operator->):
        (WTF::UniqueRef::operator T&):
        (WTF::UniqueRef::operator const T&):
        Added operator T& to avoid unneeded .get() calls.

2016-06-13  Sam Weinig  <sam@webkit.org>

        Make HashMap and HashSet work with Refs
        https://bugs.webkit.org/show_bug.cgi?id=158638

        Reviewed by Darin Adler.

        * wtf/GetPtr.h:
        Move HashTableDeletedValueType and HashTableEmptyValueType here, as they are now shared
        by more than one smart pointer. This file should probably be renamed to something else
        at some point to indicate that it contains helpers for pointer and ref related functionality.

        * wtf/HashFunctions.h:
        Add a DefaultHash for Refs. Customize the PtrHash to indicate that it is not safe to compare
        to empty or deleted Refs.

        * wtf/HashMap.h:
        (WTF::HashMapTranslator::equal):
        (WTF::HashMapTranslator::translate):
        (WTF::HashMapEnsureTranslator::equal):
        (WTF::HashMapEnsureTranslator::translate):
        * wtf/HashSet.h:
        (WTF::IdentityExtractor::extract):
        (WTF::HashSetTranslator::hash):
        (WTF::HashSetTranslator::equal):
        (WTF::HashSetTranslator::translate):
        * wtf/HashTable.h:
        (WTF::IdentityHashTranslator::hash):
        (WTF::IdentityHashTranslator::equal):
        (WTF::IdentityHashTranslator::translate):
        Use the new assignToEmpty trait function to allow uninitialized Ref's to be safely assigned to.

        * wtf/HashTraits.h:
        (WTF::HashTraits<Ref<P>>::emptyValue):
        (WTF::HashTraits<Ref<P>>::isEmptyValue):
        (WTF::HashTraits<Ref<P>>::assignToEmpty):
        (WTF::HashTraits<Ref<P>>::peek):
        (WTF::HashTraits<Ref<P>>::customDeleteBucket):
        Add custom HashTraits for Ref. Also, introduce a new trait function, assignToEmpty, for use
        in translation assignments. This is necessary since the default assignment operator for Ref
        will not allow assignment to the empty Ref, which we need to do here.

        * wtf/Ref.h:
        (WTF::Ref::operator=):
        (WTF::Ref::Ref):
        (WTF::Ref::isHashTableDeletedValue):
        (WTF::Ref::hashTableDeletedValue):
        (WTF::Ref::isHashTableEmptyValue):
        (WTF::Ref::hashTableEmptyValue):
        Add explicit constructors/predicates for making deleted/empty Refs.

        (WTF::Ref::assignToHashTableEmptyValue):
        Add a special function that allows assignment to an empty Ref, which the
        assignment operator does not.
        
        (WTF::IsSmartPtr):
        Add an IsSmartPtr override to indicate that Ref is a smart pointer.

        * wtf/RefPtr.h:
        Move HashTableDeletedValueType to GetPtr.h.

2016-06-13  Fujii Hironori  <Hironori.Fujii@sony.com>

        Stack overflow at RefPtr::release on Windows port since r201782
        https://bugs.webkit.org/show_bug.cgi?id=158687

        Reviewed by Chris Dumez.

        RefPtr::release calls RefPtr::RefPtr, and RefPtr::RefPtr calls
        RefPtr::release.

        RefPtr::RefPtr does not need to call RefPtr::release.

        * wtf/RefPtr.h:
        (WTF::RefPtr::RefPtr): Do not call RefPtr::release.

2016-06-11  Myles C. Maxfield  <mmaxfield@apple.com>

        Addressing post-review comments after r201978.
        https://bugs.webkit.org/show_bug.cgi?id=158649
        <rdar://problem/13258122>

        Unreviewed.

        * wtf/text/StringCommon.h:
        (WTF::equal):
        (WTF::naiveEqualWithoutPerformingUnicodeNormalization): Deleted.

2016-06-11  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Map commonly used Chinese Windows font names to names present on Cocoa operating systems
        https://bugs.webkit.org/show_bug.cgi?id=158649
        <rdar://problem/13258122>

        Reviewed by Darin Adler.

        * wtf/text/StringCommon.h:
        (WTF::naiveEqualWithoutPerformingUnicodeNormalization): Added.

2016-06-11  Chris Dumez  <cdumez@apple.com>

        WorkerNavigator is missing some attributes
        https://bugs.webkit.org/show_bug.cgi?id=158593
        <rdar://problem/26731334>

        Reviewed by Darin Adler.

        * wtf/PlatformUserPreferredLanguages.h:
        * wtf/PlatformUserPreferredLanguagesWin.cpp:
        (WTF::platformLanguage):
        (WTF::platformUserPreferredLanguages):

        Make platformUserPreferredLanguages() thread safe on Windows. The
        Mac and Unix implementations are already thread-safe.

        HAS_FASTCALL_CALLING_CONVENTION is changed to COMPILER_SUPPORTS(FASTCALL_CALLING_CONVENTION).

2016-06-10  Alex Christensen  <achristensen@webkit.org>

        Introduce WTF::UniqueRef
        https://bugs.webkit.org/show_bug.cgi?id=158596

        Reviewed by Brady Eidson.

        WTF::UniqueRef is like a std::unique_ptr that is guaranteed to be non-null.
        std::make_unique returns a non-null value that is put into a std::unique_ptr, a type
        that could contain null values.  To be able to pass such values around and store them
        without wondering if they are null, we now have WTF::UniqueRef which cannot be null.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/UniqueRef.h: Added.
        (WTF::makeUniqueRef):
        (WTF::UniqueRef::UniqueRef):
        (WTF::UniqueRef::get):
        (WTF::UniqueRef::operator&):
        (WTF::UniqueRef::operator->):

2016-06-09  Brady Eidson  <beidson@apple.com>

        Unaddressed review feedback from r201872

        * wtf/CrossThreadTask.h:
        (WTF::callFunctionForCrossThreadTask): Fix typo.

2016-06-09  Brady Eidson  <beidson@apple.com>

        Greatly simplify CrossThreadTask.h.
        https://bugs.webkit.org/show_bug.cgi?id=158542

        Reviewed by Darin Adler.

        * wtf/CrossThreadTask.h:
        (WTF::crossThreadCopy):
        (WTF::callFunctionForCrossThreadTaskImpl):
        (WTF::callFunctionForCrossThreadTask):
        (WTF::createCrossThreadTask):
        (WTF::callMemberFunctionForCrossThreadTaskImpl):
        (WTF::callMemberFunctionForCrossThreadTask):

2016-06-08  Brady Eidson  <beidson@apple.com>

        Make CrossThreadCopier more efficient (fewer copies!).
        https://bugs.webkit.org/show_bug.cgi?id=158456

        Reviewed by Alex Christensen.

        Previously, we'd run all arguments through CrossThreadCopier, then immediately make
        an unnecessary copy of the result during lambda capture.

        Instead, we should just put the CrossThreadCopier generated objects directly in lambdas,
        which are then captured by NoncopyableFunctions.

        This reduces the number of constructor calls per argument from 2 copies to 1 move.

        * wtf/CrossThreadTask.h:
        (WTF::CrossThreadTask::CrossThreadTask):
        (WTF::createCrossThreadTask):

2016-06-07  Filip Pizlo  <fpizlo@apple.com>

        Implement Air::allocateStack() in ES6 to see how much of a bad idea that is
        https://bugs.webkit.org/show_bug.cgi?id=158318

        Reviewed by Saam Barati.

        * wtf/Insertion.h:
        (WTF::executeInsertions): I found a bug while rewriting this code in JS.
        * wtf/PrintStream.h:
        (WTF::PrintStream::print):
        (WTF::PrintStream::println): This is useful to have.

2016-06-07  Keith Rollin  <krollin@apple.com>

        Remove all uses of PassRefPtr in WTF
        https://bugs.webkit.org/show_bug.cgi?id=157596
        <rdar://problem/26234391>

        Reviewed by Chris Dumez.

        Remove/update most interfaces that take or return PassRefPtrs.
        Remaining references include those in non-Cocoa implementations and
        those required for continued compatibility with modules that still use
        PassRefPtrs (specifically: Forward.h, RefPtr interoperability,
        SizeLimits.h, WorkQueue (Windows) DispatchQueueEfl,
        DispatchWorkItemEfl, and PassRefPtr itself).

        Update calls to interfaces that no longer take or return PassRefPtrs.

        Update adoptRef(T*) to return a RefPtr instead of a PassRefPtr and
        move it to RefPtr.h from PassRefPtr.h.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::allocate):
        * wtf/MetaAllocator.h:
        * wtf/ParallelJobsGeneric.h:
        (WTF::ParallelEnvironment::ThreadPrivate::create):
        * wtf/text/AtomicStringImpl.cpp:
        (WTF::HashAndUTF8CharactersTranslator::translate):
        (WTF::SubstringTranslator::translate):
        * wtf/text/CString.cpp:
        (WTF::CStringBuffer::createUninitialized):
        * wtf/text/CString.h:
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString):
        (WTF::StringBuilder::resize):
        (WTF::StringBuilder::reallocateBuffer<LChar>):
        (WTF::StringBuilder::reallocateBuffer<UChar>):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::reallocateInternal):
        (WTF::StringImpl::reallocate):
        (WTF::StringImpl::create8BitIfPossible):
        (WTF::StringImpl::createSymbol):
        (WTF::StringImpl::createNullSymbol):
        (WTF::StringImpl::convertToLowercaseWithoutLocale):
        (WTF::StringImpl::convertToUppercaseWithoutLocale):
        (WTF::StringImpl::convertToLowercaseWithLocale):
        (WTF::StringImpl::convertToUppercaseWithLocale):
        (WTF::StringImpl::convertASCIICase):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::createSubstringSharingImpl):
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::extractFoldedStringInSymbol):
        * wtf/text/SymbolRegistry.cpp:
        (WTF::SymbolRegistry::symbolForKey):
        * wtf/text/WTFString.cpp:
        (WTF::String::substringSharingImpl):
        * wtf/text/WTFString.h:
        (WTF::String::String): Deleted.
        * wtf/text/cf/StringImplCF.cpp:

2016-06-07  Yusuke Suzuki  <utatane.tea@gmail.com>

        [JSC] Do not allocate unnecessary UTF-8 string for encodeXXX functions
        https://bugs.webkit.org/show_bug.cgi?id=158416

        Reviewed by Darin Adler and Geoffrey Garen.

        * wtf/Bitmap.h:
        (WTF::Bitmap::size):
        (WTF::WordType>::Bitmap):
        (WTF::WordType>::get):
        (WTF::WordType>::set):
        (WTF::WordType>::testAndSet):
        (WTF::WordType>::testAndClear):
        (WTF::WordType>::concurrentTestAndSet):
        (WTF::WordType>::concurrentTestAndClear):
        (WTF::WordType>::clear):
        (WTF::WordType>::clearAll):
        (WTF::WordType>::nextPossiblyUnset):
        (WTF::WordType>::findRunOfZeros):
        (WTF::WordType>::count):
        (WTF::WordType>::isEmpty):
        (WTF::WordType>::isFull):

2016-06-06  Saam Barati  <sbarati@apple.com>

        equal(StringView, StringView) for strings should have a fast path for pointer equality
        https://bugs.webkit.org/show_bug.cgi?id=158452

        Reviewed by Andreas Kling.

        JSBench does a lot of StringView::operator== on StringViews that have
        the same underlying characters pointer. This becomes hot inside JSBench
        because JSBench heavily stresses JSC's UnlinkedCodeCache with a high
        hit rate. This means that when we get a hit in the cache, we used to
        do the long form of string compare. However, we were often comparing
        two StringViews that had the same underlying buffer and length.
        This patch speeds this case up to run in constant time instead of
        linear time.

        * wtf/text/StringCommon.h:
        (WTF::equalCommon):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::data):
        * wtf/text/StringView.h:
        (WTF::StringView::data):

2016-06-04  Anders Carlsson  <andersca@apple.com>

        Get rid of WorkItemWin
        https://bugs.webkit.org/show_bug.cgi?id=158381

        Reviewed by Sam Weinig.

        * wtf/PlatformWin.cmake:
        * wtf/WorkQueue.h:
        * wtf/win/WorkItemWin.cpp: Removed.
        (WTF::WorkItemWin::WorkItemWin): Deleted.
        (WTF::WorkItemWin::create): Deleted.
        (WTF::WorkItemWin::~WorkItemWin): Deleted.
        * wtf/win/WorkItemWin.h: Removed.
        (WTF::WorkItemWin::function): Deleted.
        (WTF::WorkItemWin::queue): Deleted.
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::performWorkOnRegisteredWorkThread):
        (WTF::WorkQueue::dispatch):

2016-06-03  Anders Carlsson  <andersca@apple.com>

        Get rid of HANDLE registration code in WorkQueueWin
        https://bugs.webkit.org/show_bug.cgi?id=158375

        Reviewed by Darin Adler.

        * wtf/WorkQueue.h:
        * wtf/win/WorkItemWin.cpp:
        (WTF::HandleWorkItem::HandleWorkItem): Deleted.
        (WTF::HandleWorkItem::createByAdoptingHandle): Deleted.
        (WTF::HandleWorkItem::~HandleWorkItem): Deleted.
        * wtf/win/WorkItemWin.h:
        (WTF::HandleWorkItem::setWaitHandle): Deleted.
        (WTF::HandleWorkItem::waitHandle): Deleted.
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::handleCallback): Deleted.
        (WTF::WorkQueue::platformInvalidate): Deleted.
        (WTF::WorkQueue::unregisterWaitAndDestroyItemSoon): Deleted.
        (WTF::WorkQueue::unregisterWaitAndDestroyItemCallback): Deleted.

2016-06-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r201663.
        https://bugs.webkit.org/show_bug.cgi?id=158374

        Broke the Windows build (Requested by andersca on #webkit).

        Reverted changeset:

        "Rename NoncopyableFunction to Function"
        https://bugs.webkit.org/show_bug.cgi?id=158354
        http://trac.webkit.org/changeset/201663

2016-06-03  Anders Carlsson  <andersca@apple.com>

        Rename NoncopyableFunction to Function
        https://bugs.webkit.org/show_bug.cgi?id=158354

        Reviewed by Chris Dumez.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CrossThreadTask.h:
        (WTF::CrossThreadTask::CrossThreadTask):
        * wtf/Function.h: Renamed from Source/WTF/wtf/NoncopyableFunction.h.
        * wtf/FunctionDispatcher.h:
        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        * wtf/MainThread.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/efl/DispatchQueueWorkItemEfl.h:
        (WorkItem::WorkItem):
        (TimerWorkItem::create):
        (TimerWorkItem::TimerWorkItem):
        * wtf/efl/WorkQueueEfl.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::TimerBase::ScheduledTask::create):
        (WTF::RunLoop::TimerBase::ScheduledTask::ScheduledTask):
        (WTF::RunLoop::dispatchAfter):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::RunLoop::dispatchAfter):
        * wtf/win/WorkItemWin.cpp:
        (WTF::WorkItemWin::WorkItemWin):
        (WTF::WorkItemWin::create):
        (WTF::HandleWorkItem::HandleWorkItem):
        (WTF::HandleWorkItem::createByAdoptingHandle):
        * wtf/win/WorkItemWin.h:
        (WTF::WorkItemWin::function):
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2016-06-03  Mark Lam  <mark.lam@apple.com>

        Clean up how StackVisitor dumps its frames.
        https://bugs.webkit.org/show_bug.cgi?id=158316

        Reviewed by Keith Miller.

        Added an Indenter class what works with dataLog.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Indenter.h: Added.
        (WTF::Indenter::Indenter):
        (WTF::Indenter::dump):
        (WTF::Indenter::operator++):
        (WTF::Indenter::operator--):

2016-06-02  Said Abou-Hallawa  <sabouhallawa@apple,com>

        [iOS] PDFDocumentImage should not create a cached image larger than 4M pixels
        https://bugs.webkit.org/show_bug.cgi?id=157857

        Reviewed by Darin Adler.

        * wtf/StdLibExtras.h: Add a constant value for GB (2^30).

2016-06-02  Oliver Hunt  <oliver@apple.com>

        JS parser incorrectly handles invalid utf8 in error messages.
        https://bugs.webkit.org/show_bug.cgi?id=158128

        Reviewed by Saam Barati.

        Add a new toStringWithLatin1Fallback that simply uses
        String::fromUTF8WithLatin1Fallback, so we can avoid the
        standard String::fromUTF8 null return.

        * wtf/StringPrintStream.cpp:
        (WTF::StringPrintStream::toStringWithLatin1Fallback):
        * wtf/StringPrintStream.h:

2016-06-02  Keith Miller  <keith_miller@apple.com>

        Unreviewed, reland r201532. The associated regressions have been fixed
        by r201584.

2016-06-02  Filip Pizlo  <fpizlo@apple.com>

        Use "= delete" for Locker(int) 

        Rubber stamped by Saam Barati.
        
        See discussion: https://bugs.webkit.org/show_bug.cgi?id=158306#c8

        * wtf/Locker.h:
        (WTF::Locker::Locker):
        (WTF::Locker::~Locker):

2016-06-02  Filip Pizlo  <fpizlo@apple.com>

        Make it harder to accidentally pass an integer to a locker.

        Rubber stamped by Keith Miller.
        
        See here for the discussion: https://bugs.webkit.org/show_bug.cgi?id=158306#c3

        * wtf/Locker.h:
        (WTF::Locker::Locker):
        (WTF::Locker::~Locker):

2016-06-02  Filip Pizlo  <fpizlo@apple.com>

        Make it easier to use NoLockingNecessary
        https://bugs.webkit.org/show_bug.cgi?id=158306

        Reviewed by Keith Miller.
        
        An idiom that we borrowed from LLVM is that if a function requires a lock to be held, we
        have it take a const Locker& as its first argument. This may not communicate which lock is
        to be held, but it does help us to remember that some lock must be held. So far, it's been
        relatively easy to then figure out which lock. We've had bugs where we forgot to hold a
        lock but I don't remember the last time we had a bug where we grabbed the wrong lock.
        
        But sometimes, we know at the point where we call such a method that we actually don't
        need to hold any lock. This usually happens during object construction. If we're
        constructing some object then we usually know that we have not escaped it yet, so we don't
        need to waste time acquiring its lock. We could solve this by having a separate set of
        methods that don't do or require locking. This would be cumbersome, since usually for
        every variant that takes const Locker&, there is already one that doesn't, and that one
        will grab the lock for you. So this means having a third variant, that also doesn't take a
        const Locker&, but does no locking. That's pretty weird.
        
        So, we introduced NoLockingNecessary for situations like this. The idiom went like so:
        
            Locker<Whatever> locker(Locker<Whatever>::NoLockingNecessary)
            stuff->foo(locker);
        
        Usually though, there would be some distance between where the locker is defined and where
        it's used, so when you just look at stuff->foo(locker) in isolation you don't know if this
        is a real locker or a NoLockingNecessary cast. Also, requiring two lines for this just
        adds code.
        
        This change makes this easier. Now you can just do:
        
            stuff->foo(NoLockingNecessary).
        
        This is because NoLockingNecessary has been pulled out into the WTF namespace (and is
        usinged from the global namespace) and the Locker<> constructor that takes
        NoLockingNecessaryTag is now implicit.
        
        The only possible downside of this change is that people might use this idiom more
        frequently now that it's easier to use. I don't think that's a bad thing. I'm now
        convinced that this is not a bad idiom. When I was fixing an unrelated bug, I almost went
        the way of adding more locking to some core JSC data structures, and in the process, I
        needed to use NoLockingNecessary. It's clear that this is a general-purpose idiom and we
        should not impose artificial constraints on its use.

        * wtf/Locker.h:
        (WTF::Locker::Locker):
        (WTF::Locker::~Locker):

2016-06-01  Brady Eidson  <beidson@apple.com>

        Get rid of StringCapture.
        https://bugs.webkit.org/show_bug.cgi?id=158285

        Reviewed by Chris Dumez.

        * wtf/text/WTFString.h:
        (WTF::StringCapture::StringCapture): Deleted.
        (WTF::StringCapture::string): Deleted.
        (WTF::StringCapture::releaseString): Deleted.
        (WTF::StringCapture::operator=): Deleted.

2016-06-01  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Some setters for components of Date do not timeClip() their result
        https://bugs.webkit.org/show_bug.cgi?id=158278

        Unreviewed.

        * wtf/DateMath.cpp:
        (WTF::equivalentYearForDST): Deleted.
        The assertion is bogus.
        As the comments above explains, the function is completely wrong for years
        outside [1900-2100].
        The tests passing large values for years are failing (year <= maxYear).
        The weird NaN test is a mystery. The old changelog does not explain it.

2016-05-31  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r201363 and r201456.
        https://bugs.webkit.org/show_bug.cgi?id=158240

        "40% regression on date-format-xparb" (Requested by
        keith_miller on #webkit).

        Reverted changesets:

        "LLInt should be able to cache prototype loads for values in
        GetById"
        https://bugs.webkit.org/show_bug.cgi?id=158032
        http://trac.webkit.org/changeset/201363

        "get_by_id should support caching unset properties in the
        LLInt"
        https://bugs.webkit.org/show_bug.cgi?id=158136
        http://trac.webkit.org/changeset/201456

2016-05-31  Brady Eidson  <beidson@apple.com>

        Make createCrossThreadTask() functions return on the stack instead of the heap.
        https://bugs.webkit.org/show_bug.cgi?id=158215

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj:

        * wtf/CrossThreadCopier.cpp:

        * wtf/CrossThreadQueue.h: Added. A lightweight of MessageQueue that deals directly
          in objects instead of in std::unique_ptrs.
        (WTF::CrossThreadQueue::isKilled):
        (WTF::CrossThreadQueue<DataType>::append):
        (WTF::CrossThreadQueue<DataType>::waitForMessage):
        (WTF::CrossThreadQueue<DataType>::tryGetMessage):

        * wtf/CrossThreadTask.h:
        (WTF::createCrossThreadTask):
        (WTF::CrossThreadTask::CrossThreadTask): Deleted.

2016-05-30  Brady Eidson  <beidson@apple.com>

        Move CrossThreadCopier/CrossThreadTask to WTF.
        https://bugs.webkit.org/show_bug.cgi?id=158207

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:

        * wtf/CrossThreadCopier.cpp: Renamed from Source/WebCore/platform/CrossThreadCopier.cpp.
        * wtf/CrossThreadCopier.h: Renamed from Source/WebCore/platform/CrossThreadCopier.h.
        (WTF::CrossThreadCopierPassThrough::copy):
        
        * wtf/CrossThreadTask.h: Renamed from Source/WebCore/platform/CrossThreadTask.h.
        (WTF::CrossThreadTask::CrossThreadTask):
        (WTF::CrossThreadTask::performTask):
        (WTF::createCrossThreadTask):

2016-05-28  Chris Dumez  <cdumez@apple.com>

        Templatize NoncopyableFunction class similarly to std::function
        https://bugs.webkit.org/show_bug.cgi?id=158185

        Reviewed by Darin Adler.

        Templatize NoncopyableFunction class similarly to std::function, so
        that it can be used as a std::function replacement in more places.

        Previously, NoncopyableFunction could only support "void()" lambdas.

        * wtf/FunctionDispatcher.h:
        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        * wtf/MainThread.h:
        * wtf/NoncopyableFunction.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/efl/DispatchQueueWorkItemEfl.h:
        (WorkItem::WorkItem):
        (TimerWorkItem::create):
        (TimerWorkItem::TimerWorkItem):
        * wtf/efl/WorkQueueEfl.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::TimerBase::ScheduledTask::create):
        (WTF::RunLoop::TimerBase::ScheduledTask::ScheduledTask):
        (WTF::RunLoop::dispatchAfter):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::RunLoop::dispatchAfter):
        * wtf/win/WorkItemWin.cpp:
        (WTF::WorkItemWin::WorkItemWin):
        (WTF::WorkItemWin::create):
        (WTF::HandleWorkItem::HandleWorkItem):
        (WTF::HandleWorkItem::createByAdoptingHandle):
        * wtf/win/WorkItemWin.h:
        (WTF::WorkItemWin::function):
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2016-05-28  Dan Bernstein  <mitz@apple.com>

        Build fix for projects that include MainThread.h without including FastMalloc.h.

        * wtf/NoncopyableFunction.h: Include FastMalloc.h from here.

2016-05-27  Chris Dumez  <cdumez@apple.com>

        callOnMainThread() should not copy captured lambda variables
        https://bugs.webkit.org/show_bug.cgi?id=158166

        Reviewed by Brady Eidson.

        callOnMainThread() should not copy captured lambda variables. This
        function is usually called cross-thread with a lambda and copying
        the lambda (and its captured variables) can lead to thread-safety
        issues.

        This patch updates callOnMainThread() to take a NoncopyableFunction&&
        in parameter instead of a std::function. The call sites of
        callOnMainThread() have also been updated to use C++14's lambda
        capture with initializer.

        * WTF.xcodeproj/project.pbxproj:

        * wtf/FunctionDispatcher.h:
        * wtf/NoncopyableFunction.h:
        - Moved NoncopyableFunction from FunctionDispatcher.h to
          NoncopyableFunction.h.
        - Add a new operator=(nullptr_t) operator to NoncopyableFunction to
          match std::function, as one of the call sites needed it.

        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        * wtf/MainThread.h:

2016-05-27  Yusuke Suzuki  <utatane.tea@gmail.com>

        Unreviewed, build fix for JSCOnly port.
        https://bugs.webkit.org/show_bug.cgi?id=158111

        Use NoncopyableFunction instead of std::function<>.

        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::TimerBase::ScheduledTask::create):
        (WTF::RunLoop::TimerBase::ScheduledTask::ScheduledTask):

2016-05-27  Chris Dumez  <cdumez@apple.com>

        WorkQueue::dispatch() / RunLoop::dispatch() should not copy captured lambda variables
        https://bugs.webkit.org/show_bug.cgi?id=158111

        Reviewed by Darin Adler.

        WorkQueue::dispatch() / RunLoop::dispatch() should not copy captured lambda variables.
        These are often used cross-thread and copying the captured lambda variables can be
        dangerous (e.g. we do not want to copy a String after calling isolatedCopy() upon
        capture).

        This patch introduces a new NoncopyableFunction type that behaves similarly to
        std::function but guarantees that the passed-in lambda (and its captured variables)
        cannot be copied. This new NoncopyableFunction type is now used for
        WorkQueue / RunLoop's dispatch() / dispatchAfter() which are commonly used
        cross-thread. This should now allow us to call WorkQueue::dispatch() with a lambda
        that captures a String like so:
        [str = str.isolatedCopy()]() { }

        Also note that even though this is not leveraged in this patch, NoncopyableFunction
        would allow us to capture move-only types such as std::unique_ptr as so:
        [p = WTFMove(p)]() { }
        This does not work if we convert the lambda into an std::function because
        std::function requires the lambda to be copyable, NoncopyableFunction does not.

        * wtf/FunctionDispatcher.h:
        (WTF::CallableWrapperBase::~CallableWrapperBase):
        (WTF::NoncopyableFunction::NoncopyableFunction):
        (WTF::NoncopyableFunction::operator()):
        (WTF::NoncopyableFunction::operator bool):
        (WTF::NoncopyableFunction::operator=):
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/efl/DispatchQueueWorkItemEfl.h:
        (WorkItem::WorkItem):
        (TimerWorkItem::create):
        (TimerWorkItem::TimerWorkItem):
        * wtf/efl/WorkQueueEfl.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::dispatchAfter):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::RunLoop::dispatchAfter):
        * wtf/win/WorkItemWin.cpp:
        (WTF::WorkItemWin::WorkItemWin):
        (WTF::WorkItemWin::create):
        (WTF::HandleWorkItem::HandleWorkItem):
        (WTF::HandleWorkItem::createByAdoptingHandle):
        * wtf/win/WorkItemWin.h:
        (WTF::WorkItemWin::function):
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::timerCallback):
        (WTF::WorkQueue::dispatchAfter):

2016-05-26  Filip Pizlo  <fpizlo@apple.com>

        ScopedLambda should have a lifetime story that makes sense to the compiler
        https://bugs.webkit.org/show_bug.cgi?id=158118

        Reviewed by Mark Lam.

        Prior to this change, there were two lifetime bugs in ScopedLambda:
        
        - scopedLambda(Functor&&) would bind Functor to const lambda&, so the resulting ScopedLambdaFunctor
          would hold a reference to the original lambda. This would have surprising behavior; for example
          it meant that this code was wrong:
          
          auto l = scopedLambda<things>([&] ...);
          
          The solution is to have explicit copy/move versions of scopedLambda() rather than rely on perfect
          forwarding.
        
        - ScopedLambdaFunctor did not override its copy or move operations, so if the compiler did not RVO
          scopedLambda(), it would return a ScopedLambdaFunctor whose m_arg points to a dead temporary
          ScopedLambdaFunctor instance. The solution is to have explicit copy/move constructors and
          operators, which preserve the invariant that ScopedLambda::m_arg points to this.
        
        One nice side-effect of all of these constructors and operators being explicit is that we can rely
        on WTFMove's excellent assertions, which helped catch the first issue.
        
        This reverts ParkingLot to use ScopedLambda again.

        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionallyImpl):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkOneImpl):
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        * wtf/ScopedLambda.h:
        (WTF::scopedLambda):

2016-05-25  Anders Carlsson  <andersca@apple.com>

        Get rid of WTF/Functional.h
        https://bugs.webkit.org/show_bug.cgi?id=158081

        Reviewed by Chris Dumez.

        This is no longer used, and removing it will free up the name for a new Functional.h implementation.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Functional.h: Removed.
        (WTF::RefAndDeref::ref): Deleted.
        (WTF::RefAndDeref::deref): Deleted.
        (WTF::ParamStorageTraits::wrap): Deleted.
        (WTF::ParamStorageTraits::unwrap): Deleted.
        (WTF::ParamStorageTraits<PassRefPtr<T>>::wrap): Deleted.
        (WTF::ParamStorageTraits<PassRefPtr<T>>::unwrap): Deleted.
        (WTF::ParamStorageTraits<RefPtr<T>>::wrap): Deleted.
        (WTF::ParamStorageTraits<RefPtr<T>>::unwrap): Deleted.
        (WTF::ParamStorageTraits<RetainPtr<T>>::wrap): Deleted.
        (WTF::ParamStorageTraits<RetainPtr<T>>::unwrap): Deleted.
        (WTF::FunctionImplBase::~FunctionImplBase): Deleted.
        (WTF::FunctionBase::isNull): Deleted.
        (WTF::FunctionBase::FunctionBase): Deleted.
        (WTF::FunctionBase::impl): Deleted.
        (WTF::bind): Deleted.
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:

2016-05-24  Keith Miller  <keith_miller@apple.com>

        LLInt should be able to cache prototype loads for values in GetById
        https://bugs.webkit.org/show_bug.cgi?id=158032

        Reviewed by Filip Pizlo.

        Add move constructors/initializers to Bags.

        * wtf/Bag.h:
        (WTF::Bag::Bag):
        (WTF::Bag::operator=):

2016-05-24  Chris Dumez  <cdumez@apple.com>

        Use auto for some of our lambda function parameters
        https://bugs.webkit.org/show_bug.cgi?id=158001

        Reviewed by Darin Adler.

        Use auto for some of our lambda function parameters now that we build with c++14.

        * wtf/BubbleSort.h:
        (WTF::bubbleSort):

2016-05-23  Chris Dumez  <cdumez@apple.com>

        Speed up move of vectors of POD types that have an inline buffer
        https://bugs.webkit.org/show_bug.cgi?id=158003

        Reviewed by Benjamin Poulain.

        When moving a vector of POD types that have an inline buffer, we would
        call std::swap() on the inline buffers. This unnecessarily slow because:
        1. It does not consider the vector size, and therefore may end up doing
           more work than necessary when the inline buffer is not full.
        2. In the "move" case, the destination buffer is completely empty so
           we don't really want a swap. We merely want the move the content of
           the source's inline buffer into the destination's one.

        Instead of calling std::swap(), we now call swapInlineBuffers() which
        was already used for non-POD types. swapInlineBuffers() will do just
        what we want in the "move" case because swapBound is going to be 0.
        As a result, we will only move the content of the source buffer into
        the destination one. Also swapInlineBuffers() is aware of the source
        vector's size so it will only move what's strictly needed.

        This seems to be a 2% progression on Dromaeo DOM attributes test.

        * wtf/Vector.h:
        (WTF::VectorBuffer::swapInlineBuffer):

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Added NSEventMaskMouseMoved to AppKitCompatibilityDeclarations.h.

        Rubber-stamped by Anders Carlsson.

        * wtf/mac/AppKitCompatibilityDeclarations.h:

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Another attempt to fix the GTK build after my previous changes.

        * wtf/StdLibExtras.h:

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Tried to fix the GTK build after r201257.

        * wtf/StdLibExtras.h:

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Additional fixes for non-C++14 Apple projects that use WTF.

        * wtf/StdLibExtras.h:
        (std::exchange):

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Additional fixes for non-C++14 Apple projects that use WTF.

        * wtf/StdLibExtras.h:
        (std::make_unique):
        (std::move):

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Correct the previous build fix attempt.

        * wtf/StdLibExtras.h:

2016-05-22  Dan Bernstein  <mitz@apple.com>

        Build fix for non-C++14 Apple projects that use WTF.

        Rubber-stamped by Anders.

        * wtf/StdLibExtras.h:

2016-05-22  Brady Eidson  <beidson@apple.com>

        Move to C++14.
        https://bugs.webkit.org/show_bug.cgi?id=157948

        Reviewed by Michael Catanzaro.

        * Configurations/Base.xcconfig:
        
        Delete a lot of "stl additions until we can adopt C++14" code:
        * wtf/StdLibExtras.h:
        (std::make_unique): Deleted.
        (std::index_sequence::size): Deleted.
        (std::exchange): Deleted.
        (std::literals::chrono_literals::operator _s): Deleted.
        (std::literals::chrono_literals::operator _ms): Deleted.

2016-05-20  Rawinder Singh  <rawinder.singh-webkit@cisra.canon.com.au>

        Implement operator== for WeakPtr
        https://bugs.webkit.org/show_bug.cgi?id=157883

        Reviewed by Chris Dumez.

        Implement operator== and operator!= for WeakPtr and update code to use the operators.

        * wtf/WeakPtr.h:
        (WTF::operator==):
        (WTF::operator!=):

2016-05-19  Chris Dumez  <cdumez@apple.com>

        Improve compile-time assertions in is<>() / downcast<>()
        https://bugs.webkit.org/show_bug.cgi?id=157817

        Reviewed by Darin Adler.

        * wtf/Ref.h:
        (WTF::is):
        Add is<>() overloads taking a Ref<>() so that is<>() keeps working when
        passing a Ref<>(), despite the new static assertions on the input type.
        Some call sites were already leveraging this as it was working by
        implicitly converting the Ref<T> into a T&.

        * wtf/TypeCasts.h:
        (WTF::is):
        (WTF::downcast):
        Make static assertions stricter in is<>() / downcast<>() to catch more
        cases where those are either unnecessary or incorrect.

2016-05-19  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix all of the builds. I failed a second time.

        * wtf/BackwardsGraph.h:
        (WTF::BackwardsGraph::rootName):

2016-05-19  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix all of the builds. I had made an additional change that I did not mean to
        commit. This fixes it.

        * wtf/BackwardsGraph.h:
        (WTF::BackwardsGraph::rootName):
        (WTF::BackwardsGraph::Set::dump):
        (WTF::BackwardsGraph::dump):

2016-05-18  Filip Pizlo  <fpizlo@apple.com>

        DFG::LICMPhase shouldn't hoist type checks unless it knows that the check will succeed at the loop pre-header
        https://bugs.webkit.org/show_bug.cgi?id=144527

        Reviewed by Saam Barati.
        
        This adds an adaptor for graphs called BackwardsGraph. The WTF graph framework is based on
        passing around a Graph template argument that follows the protocol shared by DFG::CFG,
        B3::CFG, and Air::CFG. These graphs always have a single root node but may have many leaf
        nodes. This new BackwardsGraph adaptor reverses the graph by creating a synthetic return
        node that it uses as the root in the inverted graph. This currently may resort to some
        heuristics in programs that have an infinite loop, but other than that, it'll work well in
        the general case.
        
        This allows us to say Dominators<BackwardsGraph<some graph type>> as a way of computing
        backwards dominators, which then allows us to easily answer control flow equivalence
        queries.

        * CMakeLists.txt:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BackwardsGraph.h: Added.
        (WTF::BackwardsGraph::Node::Node):
        (WTF::BackwardsGraph::Node::root):
        (WTF::BackwardsGraph::Node::operator==):
        (WTF::BackwardsGraph::Node::operator!=):
        (WTF::BackwardsGraph::Node::operator bool):
        (WTF::BackwardsGraph::Node::isRoot):
        (WTF::BackwardsGraph::Node::node):
        (WTF::BackwardsGraph::Set::Set):
        (WTF::BackwardsGraph::Set::add):
        (WTF::BackwardsGraph::Set::remove):
        (WTF::BackwardsGraph::Set::contains):
        (WTF::BackwardsGraph::Set::dump):
        (WTF::BackwardsGraph::Map::Map):
        (WTF::BackwardsGraph::Map::clear):
        (WTF::BackwardsGraph::Map::size):
        (WTF::BackwardsGraph::Map::operator[]):
        (WTF::BackwardsGraph::BackwardsGraph):
        (WTF::BackwardsGraph::root):
        (WTF::BackwardsGraph::newMap):
        (WTF::BackwardsGraph::successors):
        (WTF::BackwardsGraph::predecessors):
        (WTF::BackwardsGraph::index):
        (WTF::BackwardsGraph::node):
        (WTF::BackwardsGraph::numNodes):
        (WTF::BackwardsGraph::dump):
        * wtf/Dominators.h:
        (WTF::Dominators::Dominators):
        (WTF::Dominators::dump):
        (WTF::Dominators::LengauerTarjan::computeDepthFirstPreNumbering):
        * wtf/GraphNodeWorklist.h:
        (WTF::GraphNodeWith::GraphNodeWith):
        (WTF::GraphNodeWith::operator bool):
        * wtf/StdLibExtras.h:
        (WTF::callStatelessLambda):
        (WTF::checkAndSet):

2016-05-18  Saam barati  <sbarati@apple.com>

        StringBuilder::appendQuotedJSONString doesn't properly protect against the math it's doing. Make the math fit the assertion.
        https://bugs.webkit.org/show_bug.cgi?id=157868

        Reviewed by Benjamin Poulain.

        appendQuotedJSONString was rounding up to the next power of two when resizing
        its buffer. Lets call the allocation size X. If X > 2^31, then
        roundUpToPowerOfTwo(X) == 0. This patch fixes this by making the
        assertion reflect what the code is doing. We now allocate to a size
        of X = std::max(maximumCapacityRequired , roundUpToPowerOfTwo(maximumCapacityRequired))

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendQuotedJSONString):

2016-05-17  Joseph Pecoraro  <pecoraro@apple.com>

        REGRESSION(r192855): Math.random() always produces the same first 7 decimal points the first two invocations
        https://bugs.webkit.org/show_bug.cgi?id=157805
        <rdar://problem/26327851>

        Reviewed by Geoffrey Garen.

        * wtf/WeakRandom.h:
        (WTF::WeakRandom::setSeed):
        Advance once to randomize the 32bit seed across the 128bit state
        and avoid re-using 64bits of state in the second advance.

2016-05-17  Dean Jackson  <dino@apple.com>

        Remove ES6_GENERATORS flag
        https://bugs.webkit.org/show_bug.cgi?id=157815
        <rdar://problem/26332894>

        Reviewed by Geoffrey Garen.

        This flag isn't needed. Generators are enabled everywhere and
        part of a stable specification.

        * wtf/FeatureDefines.h:

2016-05-17  Filip Pizlo  <fpizlo@apple.com>

        WTF should know about Language
        https://bugs.webkit.org/show_bug.cgi?id=157756

        Reviewed by Geoffrey Garen.

        This contains two changes:

        - Move everything that WebCore's logic for getting the platform user preferred language
          depended on into WTF. This means CFBundleSPI.h and BlockObjCExceptions.h|cpp.

        - Move WebCore::platformUserPreferredLanguages() to WTF::platformUserPreferredLanguages().
          This is needed by https://bugs.webkit.org/show_bug.cgi?id=157755, which will make JSC
          use this to detect the platform user preferred language when running standalone.

        Moving the dependencies accounts for a huge chunk of this change, since we have to rewire
        all of the references to those headers in all of WebKit.

        Moving platformUserPreferredLanguages() is mostly easy except for the weird callback.
        That function would call languageDidChange(), which needs to stay in WebCore. So, this
        gives WebCore the ability to register a languageDidChange callback. Other than this new
        logic, the code being added to WTF is just being lifted out of WebCore.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BlockObjCExceptions.h: Added.
        * wtf/BlockObjCExceptions.mm: Added.
        (ReportBlockedObjCException):
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformUserPreferredLanguages.h: Added.
        * wtf/PlatformUserPreferredLanguagesMac.mm: Added.
        (WTF::setPlatformUserPreferredLanguagesChangedCallback):
        (WTF::preferredLanguages):
        (+[WTFLanguageChangeObserver languagePreferencesDidChange:]):
        (WTF::httpStyleLanguageCode):
        (WTF::isValidICUCountryCode):
        (WTF::platformUserPreferredLanguages):
        * wtf/PlatformUserPreferredLanguagesUnix.cpp: Added.
        (WTF::setPlatformUserPreferredLanguagesChangedCallback):
        (WTF::platformLanguage):
        (WTF::platformUserPreferredLanguages):
        * wtf/PlatformUserPreferredLanguagesWin.cpp: Added.
        (WTF::setPlatformUserPreferredLanguagesChangedCallback):
        (WTF::localeInfo):
        (WTF::platformLanguage):
        (WTF::platformUserPreferredLanguages):
        * wtf/PlatformWin.cmake:
        * wtf/spi/cf: Added.
        * wtf/spi/cf/CFBundleSPI.h: Added.

2016-05-17  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        DOMPromise should only restrict the resolution type
        https://bugs.webkit.org/show_bug.cgi?id=157307

        Reviewed by Darin Adler.

        * wtf/Ref.h: Adding static constexpr to ease detection of Ref for templates.
        * wtf/RefPtr.h: Ditto.

2016-05-16  Michael Saboff  <msaboff@apple.com>

        ARMV7K: Crash at JavaScriptCore: WTF::ScopedLambdaFunctor<bool
        https://bugs.webkit.org/show_bug.cgi?id=157781

        Reviewed by Filip Pizlo.

        Replaced use of ScopedLambda in locking code with std::function much as it was
        before change set 199760 to work around what appears to be a clang compiler issue.

        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionallyImpl):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkAll):
        (WTF::ParkingLot::forEach):
        (WTF::ParkingLot::unparkOneImpl): Deleted.
        (WTF::ParkingLot::forEachImpl): Deleted.
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne): Deleted.
        (WTF::ParkingLot::forEach): Deleted.

2016-05-15  Chris Dumez  <cdumez@apple.com>

        Use more references in JS wrappers related code
        https://bugs.webkit.org/show_bug.cgi?id=157721

        Reviewed by Darin Adler.

        Add new static_reference_cast() overload that takes a Ref<U>&& in
        in order to downcast Ref<> types without causing ref-counting
        churn.

        * wtf/Ref.h:
        (WTF::static_reference_cast):

2016-05-13  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r200837.

        Seems to have regressed Speedometer and JetStream on iOS

        Reverted changeset:

        "DOMPromise should only restrict the resolution type"
        https://bugs.webkit.org/show_bug.cgi?id=157307
        http://trac.webkit.org/changeset/200837

2016-05-13  Beth Dakin  <bdakin@apple.com>

        Add dyldSPI.h
        https://bugs.webkit.org/show_bug.cgi?id=157401
        -and corresponding-
        rdar://problem/26253396

        Reviewed by Darin Adler.

        New header for dyld spi.
        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/dyldSPI.h: Added.

2016-05-13  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        DOMPromise should only restrict the resolution type
        https://bugs.webkit.org/show_bug.cgi?id=157307

        Reviewed by Darin Adler.

        * wtf/Ref.h: Adding static constexpr to ease detection of Ref for templates.
        * wtf/RefPtr.h: Ditto.

2016-05-12  Daniel Bates  <dabates@apple.com>

        Use SecTask SPI to retrieve code signing identifier for user directory suffix
        https://bugs.webkit.org/show_bug.cgi?id=157570

        Reviewed by Darin Adler.
        <rdar://problem/25706517>

        Forward declare SPI SecTaskCopySigningIdentifier().

        * wtf/spi/cocoa/SecuritySPI.h:

2016-05-12  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(ES6_ARROWFUNCTION_SYNTAX) guards
        https://bugs.webkit.org/show_bug.cgi?id=157564

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2016-05-10  Filip Pizlo  <fpizlo@apple.com>

        Internal JSC profiler should have a timestamped log of events for each code block
        https://bugs.webkit.org/show_bug.cgi?id=157538

        Reviewed by Benjamin Poulain.

        * wtf/PrintStream.h:
        (WTF::PrintStream::print):

2016-05-10  Chris Dumez  <cdumez@apple.com>

        Get rid of a lot of calls to RefPtr::release()
        https://bugs.webkit.org/show_bug.cgi?id=157505

        Reviewed by Alex Christensen.

        Get rid of a lot of calls to RefPtr::release() and use WTFMove() instead.

        * wtf/text/AtomicStringImpl.cpp:
        (WTF::HashAndUTF8CharactersTranslator::translate):
        * wtf/text/CString.cpp:
        (WTF::CString::copyBufferIfNeeded):
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::allocateBuffer):
        (WTF::StringBuilder::allocateBufferUpConvert):
        (WTF::StringBuilder::shrinkToFit):
        * wtf/text/WTFString.cpp:
        (WTF::String::append):
        (WTF::String::insert):
        (WTF::String::removeInternal):
        * wtf/text/WTFString.h:
        (WTF::String::String):
        (WTF::String::operator=):
        (WTF::String::releaseImpl):
        (WTF::String::isNull): Deleted.

2016-05-08  Chris Dumez  <cdumez@apple.com>

        [COCOA] Disable HAVE_DTRACE at build time
        https://bugs.webkit.org/show_bug.cgi?id=157433
        <rdar://problem/26148841>

        Reviewed by Mark Lam.

        Disable HAVE_DTRACE on COCOA since it is mostly unused and has a performance
        impact, at least on iOS.

        * wtf/Platform.h:

2016-05-08  Chris Dumez  <cdumez@apple.com>

        [Bindings] Simplify [RequiresExistingAtomicString] IDL extended attribute handling
        https://bugs.webkit.org/show_bug.cgi?id=157465

        Reviewed by Darin Adler.

        Add an AtomicString(RefPtr<AtomicStringImpl>&&) constructor that is now
        used by the bindings when [RequiresExistingAtomicString] is used. This
        is more efficient than using AtomicString(AtomicStringImpl*) as the
        caller has a RefPtr<AtomicStringImpl> and is consistent with the
        pre-existing String(RefPtr<AtomicStringImpl>&&) constructor.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):

2016-05-08  Darin Adler  <darin@apple.com>

        * wtf/text/WTFString.h: Remove pragma once. Not working for some reason.

2016-05-08  Darin Adler  <darin@apple.com>

        Follow-up to that last patch (missed review comments).

        * wtf/text/WTFString.h: Use nullptr instead of 0 as needed. Also use pragma once.

2016-05-08  Darin Adler  <darin@apple.com>

        Change EventSource constructor to take an IDL dictionary instead of a WebCore::Dictionary
        https://bugs.webkit.org/show_bug.cgi?id=157459

        Reviewed by Chris Dumez.

        * wtf/text/WTFString.h: Export a symbol now used in WebCore.

2016-05-02  Sam Weinig  <sam@webkit.org>

        On platforms that support it, use a SecTrustRef as the basis of CertificateInfo instead of a chain of SecCertificateRefs.
        https://bugs.webkit.org/show_bug.cgi?id=157220

        Reviewed by Darin Adler.

        * wtf/Platform.h:
        Add support for HAVE(SEC_TRUST_SERIALIZATION).

        * wtf/spi/cocoa/SecuritySPI.h:
        Add SPI access to SecTrustSerialize and SecTrustDeserialize.

2016-05-04  Filip Pizlo  <fpizlo@apple.com>

        Add HLE locks and synchronic TTAS locks to the ToyLocks benchmark suite
        https://bugs.webkit.org/show_bug.cgi?id=157367

        Rubber stamped by Benjamin Poulain.
        
        Turns out they are both a lot slower than WTF::Lock. The HLE lock is written according to Intel's
        documentation. The synchronic lock follows the algorithm of the "ttas_lock" in the synchronic
        test.hpp.

        * benchmarks/ToyLocks.h:

2016-05-04  Filip Pizlo  <fpizlo@apple.com>

        Add a few more WTF locking benchmarks
        https://bugs.webkit.org/show_bug.cgi?id=157365

        Rubber stamped by Benjamin Poulain.
        
        Factors out our toy locks into ToyLocks.h and adds a new test (LockFairnessTest) that measures
        the fairness of locks.
        
        The result: WTF::Lock is pretty fair enough.

        * benchmarks/LockFairnessTest.cpp: Added.
        (main):
        * benchmarks/LockSpeedTest.cpp:
        (main):
        * benchmarks/ToyLocks.h: Added.

2016-05-04  Filip Pizlo  <fpizlo@apple.com>

        Speed up JSGlobalObject initialization by making some properties lazy
        https://bugs.webkit.org/show_bug.cgi?id=157045

        Reviewed by Keith Miller.
        
        This WTF change is at the heart of a large JSC change. In JSC I found myself wanting to
        do this a lot:
        
            static void callback(Foo& foo) { ... }
        
            foo.setCallback(callback);
        
        But that's not very nice to write if many different setCallback() calls are inside of the
        same very large function: you'll have to have a lot of static function definitions in
        one part of the file, and then a bunch of setCallback() calls in another part. It's hard
        to reason about what's going on with such code.
        
        So what if you wrote this instead:
        
            foo.setCallback([] (Foo& foo) { ... });
        
        Much nicer! There is a standard way to do this: lambdas that are stateless are
        convertible to function pointers. This change also offers another approach that is a bit
        more general.
        
        These additions to WTF help you do it:
        
        isStatelessLambda<Func>(): tells you if Func is a stateless lambda. This uses is_empty to
        test if the lambda is stateless. This turns out to be a stronger property than
        convertibility to function pointers. For example, a function pointer is convertible to a
        function pointer, but it is definitely stateful: you cannot successfully call it if you
        only has its type. On the other hand, a stateless lambda is really stateless in the sense
        that you only need its type to call it.
        
        callStatelessLambda<ResultType, Func>(Arguments&&...): calls the given stateless lambda.
        
        JSC uses these to build up some sophisticated lazy-initialization APIs. The use of
        statelessness allows JSC to combine a lambda with other logic into a single function
        pointer.

        * wtf/StdLibExtras.h:
        (WTF::isStatelessLambda):
        (WTF::callStatelessLambda):

2016-05-04  Per Arne Vollan  <peavo@outlook.com>

        [Win] Use NeverDestroyed template.
        https://bugs.webkit.org/show_bug.cgi?id=157345

        Reviewed by Darin Adler.

        * wtf/ThreadingWin.cpp:
        (WTF::threadMapMutex):
        (WTF::threadMap):

2016-05-04  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r200383 and r200406.

        Seems to have caused crashes on iOS / ARMv7s

        Reverted changesets:

        "Speed up JSGlobalObject initialization by making some
        properties lazy"
        https://bugs.webkit.org/show_bug.cgi?id=157045
        http://trac.webkit.org/changeset/200383

        "REGRESSION(r200383): Setting lazily initialized properties
        across frame boundaries crashes"
        https://bugs.webkit.org/show_bug.cgi?id=157333
        http://trac.webkit.org/changeset/200406

2016-05-03  Filip Pizlo  <fpizlo@apple.com>

        Speed up JSGlobalObject initialization by making some properties lazy
        https://bugs.webkit.org/show_bug.cgi?id=157045

        Reviewed by Keith Miller.
        
        This WTF change is at the heart of a large JSC change. In JSC I found myself wanting to
        do this a lot:
        
            static void callback(Foo& foo) { ... }
        
            foo.setCallback(callback);
        
        But that's not very nice to write if many different setCallback() calls are inside of the
        same very large function: you'll have to have a lot of static function definitions in
        one part of the file, and then a bunch of setCallback() calls in another part. It's hard
        to reason about what's going on with such code.
        
        So what if you wrote this instead:
        
            foo.setCallback([] (Foo& foo) { ... });
        
        Much nicer! There is a standard way to do this: lambdas that are stateless are
        convertible to function pointers. This change also offers another approach that is a bit
        more general.
        
        These additions to WTF help you do it:
        
        isStatelessLambda<Func>(): tells you if Func is a stateless lambda. This uses is_empty to
        test if the lambda is stateless. This turns out to be a stronger property than
        convertibility to function pointers. For example, a function pointer is convertible to a
        function pointer, but it is definitely stateful: you cannot successfully call it if you
        only has its type. On the other hand, a stateless lambda is really stateless in the sense
        that you only need its type to call it.
        
        callStatelessLambda<ResultType, Func>(Arguments&&...): calls the given stateless lambda.
        
        JSC uses these to build up some sophisticated lazy-initialization APIs. The use of
        statelessness allows JSC to combine a lambda with other logic into a single function
        pointer.

        * wtf/StdLibExtras.h:
        (WTF::isStatelessLambda):
        (WTF::callStatelessLambda):

2016-05-03  Per Arne Vollan  <peavo@outlook.com>

        [Win] Remove Windows XP Compatibility Requirements
        https://bugs.webkit.org/show_bug.cgi?id=152899

        Reviewed by Brent Fulgham.

        Windows XP is not supported anymore, we can remove workarounds.

        * wtf/Assertions.cpp:

2016-05-03  Per Arne Vollan  <peavo@outlook.com>

        [Win] Warning fix.
        https://bugs.webkit.org/show_bug.cgi?id=157309

        Reviewed by Darin Adler.

        MSVC gives a warning when converting from signed to unsigned.

        * wtf/SmallPtrSet.h:
        (WTF::SmallPtrSet::begin):

2016-05-02  Brady Eidson  <beidson@apple.com>

        Add the ability to accumulate logs for specific logging channels to help diagnose test timeouts.
        https://bugs.webkit.org/show_bug.cgi?id=157274

        Reviewed by Alex Christensen.

        This patch changes WTFLog to add the logging string to the logging accumulator if the logging channel says so.
        It also adds support for using this new accumulation mechanism.

        * WTF.xcodeproj/project.pbxproj:

        * wtf/Assertions.cpp:
        (WTF::resetAccumulatedLogs):
        (WTF::getAndResetAccumulatedLogs):
        * wtf/Assertions.h:

        * wtf/LoggingAccumulator.h: Added. Expose functions to get accumulated logs and to reset the accumulation.

        * wtf/text/WTFString.cpp:
        (WTF::String::format): Update to handle %@ on CF (Well, really ObjC) platforms.

2016-05-02  Per Arne Vollan  <peavo@outlook.com>

        [Win] Enable IndexedDB.
        https://bugs.webkit.org/show_bug.cgi?id=157192

        Reviewed by Brent Fulgham.

        Fix compile errors when format specifiers like PRIu64 is used, by defining
        __STDC_FORMAT_MACROS before inttypes.h is included.

        * wtf/Platform.h: 

2016-04-27  Brady Eidson  <beidson@apple.com>

        Modern IDB: Implement native IDBFactory.getAllDatabaseNames for WebInspector.
        https://bugs.webkit.org/show_bug.cgi?id=157072

        Reviewed by Alex Christensen.

        Moved these Hex Digit utilities from WebCore URL code (???), 
        and add a checked version of getting the hex digit value.
        
        * wtf/HexNumber.h:
        (WTF::isHexDigit):
        (WTF::uncheckedHexDigit):
        (WTF::hexDigitValue):
        (WTF::uncheckedHexDigitValue):

2016-04-25  Ryosuke Niwa  <rniwa@webkit.org>

        Remove the build flag for template elements
        https://bugs.webkit.org/show_bug.cgi?id=157022

        Reviewed by Daniel Bates.

        * wtf/FeatureDefines.h:

2016-04-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        Heap corruption is detected when destructing JSGlobalObject
        https://bugs.webkit.org/show_bug.cgi?id=156831

        Reviewed by Mark Lam.

        WebKit uses CRT static library on Windows.  Each copy of the CRT
        library has its own heap manager, allocating memory in one CRT
        library and passing the pointer across a DLL boundary to be freed
        by a different copy of the CRT library is a potential cause for
        heap corruption.

          Potential Errors Passing CRT Objects Across DLL Boundaries
          <https://msdn.microsoft.com/en-us/library/ms235460(v=vs.140).aspx>

        JSGlobalObject::createRareDataIfNeeded is inlined but
        JSGlobalObject::~JSGlobalObject is not.  Then, the heap of
        allocating JSGlobalObjectRareData is WebKit.dll, but deallocating
        JavaScriptCore.dll.  Adding WTF_MAKE_FAST_ALLOCATED to
        JSGlobalObjectRareData ensures heap consistency of it.  WTF::Lock
        also needs WTF_MAKE_FAST_ALLOCATED because it is allocated from
        the inlined constructor of JSGlobalObjectRareData.

        * wtf/Lock.h: Add WTF_MAKE_FAST_ALLOCATED.

2016-04-21  Saam barati  <sbarati@apple.com>

        Lets do less locking of symbol tables in the BytecodeGenerator where we don't have race conditions
        https://bugs.webkit.org/show_bug.cgi?id=156821

        Reviewed by Filip Pizlo.

        This patch introduces a new constructor for Locker which implies no
        locking is necessary. You instantiate such a locker like so:
        `Locker<Lock> locker(Locker<Lock>::NoLockingNecessary);`

        This is useful to for very specific places when it is not yet
        required to engage in a specified locking protocol. As an example,
        we use this in JSC when we allocate a particular object that
        engages in a locking protocol with the concurrent compiler thread,
        but before a concurrent compiler thread that could have access
        to the object exists.

        * wtf/Locker.h:
        (WTF::Locker::Locker):
        (WTF::Locker::~Locker):

2016-04-19  Michael Saboff  <msaboff@apple.com>

        iTunes crashing JavaScriptCore.dll
        https://bugs.webkit.org/show_bug.cgi?id=156647

        Reviewed by Filip Pizlo.

        If a thread was created without using the WTF thread apis and that thread uses
        a JavaScript VM and that thread exits with the VM still around, JSC won't know
        that the thread has exited.  Currently, we use ThreadSpecificThreadExit() to
        clean up any thread specific keys.  Cleaning up these keys is how JSC is
        notified of a thread exit.  We only call ThreadSpecificThreadExit() from
        wtfThreadEntryPoint() when the thread entry point function returns.
        This mechanism was put in place for Windows because we layer the WTF::ThreadSpecific
        functionality on top of TLS (Thread Local Storage), but TLS doesn't have
        a thread exiting callback the way that pthread_create_key does.

        The fix is to change from using TLS to using FLS (Fiber Local Storage).  Although
        Windows allows multiple fibers per thread, WebKit is not designed to work with a
        multiple fibers per thread.  When there is only one fiber per thread, FLS works just
        like TLS, but it has the destroy callback.

        I restructured the Windows version of WTF::ThreadSpecific to be almost the same
        as the pthread version.  Added THREAD_SPECIFIC_CALL to set the correct
        calling convenction for Windows 32 bit.

        * wtf/ThreadSpecific.h:
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::threadSpecificSet):
        (WTF::threadSpecificGet):
        (WTF::ThreadSpecific<T>::ThreadSpecific):
        (WTF::ThreadSpecific<T>::~ThreadSpecific):
        (WTF::ThreadSpecific<T>::get):
        (WTF::ThreadSpecific<T>::set):
        (WTF::ThreadSpecific<T>::destroy):
        Restructured to use FLS.  Renamed TLS* to FLS*.

        * wtf/ThreadSpecificWin.cpp:
        (WTF::flsKeyCount):
        (WTF::flsKeys):
        Renamed from tlsKey*() to flsKey*().

        (WTF::destructorsList): Deleted.
        (WTF::destructorsMutex): Deleted.
        (WTF::PlatformThreadSpecificKey::PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::~PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::setValue): Deleted.
        (WTF::PlatformThreadSpecificKey::value): Deleted.
        (WTF::PlatformThreadSpecificKey::callDestructor): Deleted.
        (WTF::tlsKeyCount): Deleted.
        (WTF::tlsKeys): Deleted.
        (WTF::threadSpecificKeyCreate): Deleted.
        (WTF::threadSpecificKeyDelete): Deleted.
        (WTF::threadSpecificSet): Deleted.
        (WTF::threadSpecificGet): Deleted.
        (WTF::ThreadSpecificThreadExit): Deleted.

        * wtf/ThreadingWin.cpp:
        (WTF::wtfThreadEntryPoint): Eliminated call to ThreadSpecificThreadExit.

2016-04-19  Filip Pizlo  <fpizlo@apple.com>

        Add more locking algorithms to the LockSpeedTest.

        Rubber stamped by Saam Barati.

        * benchmarks/LockSpeedTest.cpp:
        (main):

2016-04-19  Filip Pizlo  <fpizlo@apple.com>

        Clean up the ParkingLot uparking API a bit
        https://bugs.webkit.org/show_bug.cgi?id=156746

        Reviewed by Saam Barati and Geoffrey Garen.
        
        Previously, unparkOne() would either return a boolean to tell you if there are any more threads on
        the queue or it would pass your callback a pair of booleans - one to tell if a thread was unparked
        and another to tell if there are any more threads. This was an annoying inconsistency. What if you
        wanted to know if unparkOne() unparked a thread but you don't care to use callbacks?

        This fixes unparkOne() to use a struct called UnparkResult for both of its variants. This makes the
        code a bit cleaner.

        * wtf/Atomics.h: Add some more atomic ops.
        (WTF::Atomic::exchangeAndAdd):
        (WTF::Atomic::exchange):
        * wtf/Condition.h: Change calls to unparkOne().
        (WTF::ConditionBase::notifyOne):
        * wtf/Lock.cpp: Change calls to unparkOne().
        (WTF::LockBase::unlockSlow):
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        * wtf/ParkingLot.h: Switch to using ScopedLambda and introduce UnparkResult.

2016-04-19  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r199726.
        https://bugs.webkit.org/show_bug.cgi?id=156748

        WebKit tests crash on Windows 32 (Requested by msaboff on
        #webkit).

        Reverted changeset:

        "iTunes crashing JavaScriptCore.dll"
        https://bugs.webkit.org/show_bug.cgi?id=156647
        http://trac.webkit.org/changeset/199726

2016-04-19  Michael Saboff  <msaboff@apple.com>

        iTunes crashing JavaScriptCore.dll
        https://bugs.webkit.org/show_bug.cgi?id=156647

        Reviewed by Saam Barati.

        If a thread was created without using the WTF thread apis and that thread uses
        a JavaScript VM and that thread exits with the VM still around, JSC won't know
        that the thread has exited.  Currently, we use ThreadSpecificThreadExit() to
        clean up any thread specific keys.  Cleaning up these keys is how JSC is
        notified of a thread exit.  We only call ThreadSpecificThreadExit() from
        wtfThreadEntryPoint() when the thread entry point function returns.
        This mechanism was put in place for Windows because we layer the WTF::ThreadSpecific
        functionality on top of TLS (Thread Local Storage), but TLS doesn't have
        a thread exiting callback the way that pthread_create_key.

        The fix is to change from using TLS to using FLS (Fiber Local Storage).  Although
        Windows allows multiple fibers per thread, WebKit is not designed to work with a
        multiple fibers per thread.  When there is only one fiber per thread, FLS works just
        like TLS, but it has the destroy callback.

        I restructured the Windows version of WTF::ThreadSpecific to be almost the same
        as the pthread version.

        * wtf/ThreadSpecific.h:
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::threadSpecificSet):
        (WTF::threadSpecificGet):
        (WTF::ThreadSpecific<T>::ThreadSpecific):
        (WTF::ThreadSpecific<T>::~ThreadSpecific):
        (WTF::ThreadSpecific<T>::get):
        (WTF::ThreadSpecific<T>::set):
        (WTF::ThreadSpecific<T>::destroy):
        Restructured to use FLS.  Renamed TLS* to FLS*.

        * wtf/ThreadSpecificWin.cpp:
        (WTF::flsKeyCount):
        (WTF::flsKeys):
        Renamed from tlsKey*() to flsKey*().

        (WTF::destructorsList): Deleted.
        (WTF::destructorsMutex): Deleted.
        (WTF::PlatformThreadSpecificKey::PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::~PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::setValue): Deleted.
        (WTF::PlatformThreadSpecificKey::value): Deleted.
        (WTF::PlatformThreadSpecificKey::callDestructor): Deleted.
        (WTF::tlsKeyCount): Deleted.
        (WTF::tlsKeys): Deleted.
        (WTF::threadSpecificKeyCreate): Deleted.
        (WTF::threadSpecificKeyDelete): Deleted.
        (WTF::threadSpecificSet): Deleted.
        (WTF::threadSpecificGet): Deleted.
        (WTF::ThreadSpecificThreadExit): Deleted.

        * wtf/ThreadingWin.cpp:
        (WTF::wtfThreadEntryPoint): Eliminated call to ThreadSpecificThreadExit.

2016-04-19  Yusuke Suzuki  <utatane.tea@gmail.com>

        [GTK] Use Generic WorkQueue instead of WorkQueueGLib
        https://bugs.webkit.org/show_bug.cgi?id=156721

        Reviewed by Benjamin Poulain.

        WorkQueueGLib includes platform-dependent part only for WorkQueue::dispatchAfter.
        However, its code is related to RunLoopGLib rather than WorkQueueGLib.
        In this patch, we move the code from WorkQueueGLib to RunLoopGLib, drop WorkQueueGLib
        and use WorkQueueGeneric.

        * wtf/PlatformGTK.cmake:
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::DispatchAfterContext::dispatch):
        (WTF::RunLoop::dispatchAfter):
        * wtf/glib/WorkQueueGLib.cpp: Removed.
        (WTF::WorkQueue::platformInitialize): Deleted.
        (WTF::WorkQueue::platformInvalidate): Deleted.
        (WTF::WorkQueue::dispatch): Deleted.
        (WTF::DispatchAfterContext::DispatchAfterContext): Deleted.
        (WTF::DispatchAfterContext::~DispatchAfterContext): Deleted.
        (WTF::DispatchAfterContext::dispatch): Deleted.
        (WTF::WorkQueue::dispatchAfter): Deleted.

2016-04-18  Yusuke Suzuki  <utatane.tea@gmail.com>

        [JSCOnly] Implement RunLoop and remove glib dependency
        https://bugs.webkit.org/show_bug.cgi?id=155706

        Reviewed by Michael Catanzaro.

        Add missing RunLoop and WorkQueue platform code for JSCOnly port.
        The implementation does not use platform specific things. Instead, we
        implement them on WTF framework; using condition variables to construct
        the run loop and timers.

        Since the fallback is implemented, it is not necessary for JSCOnly port
        to depend on GLib's RunLoop abstraction. So this patch removes its
        dependency. As a result, now, JSCOnly port removes dependencies except for the system ICU.

        We clean up event loop ifdefs by introducing USE_XXX_EVENT_LOOP flags.
        USE(XXX_EVENT_LOOP) is exclusive to each other. So from now, we do not need to take care
        of the order of if-defs for the event loops. (For example, USE(GLIB) should have lead before
        OS(DARWIN) in WorkQueue.h for WebKitGTK on Darwin.)

        EVENT_LOOP determination is done in Platform.h. This follows the style of WTF PLATFORM.

        * wtf/Platform.h:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/generic/MainThreadGeneric.cpp: Renamed from Source/WTF/wtf/none/MainThreadNone.cpp.
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        * wtf/generic/RunLoopGeneric.cpp: Added.
        (WTF::RunLoop::TimerBase::ScheduledTask::create):
        (WTF::RunLoop::TimerBase::ScheduledTask::ScheduledTask):
        (WTF::RunLoop::TimerBase::ScheduledTask::fired):
        (WTF::RunLoop::TimerBase::ScheduledTask::scheduledTimePoint):
        (WTF::RunLoop::TimerBase::ScheduledTask::updateReadyTime):
        (WTF::RunLoop::TimerBase::ScheduledTask::EarliestSchedule::operator()):
        (WTF::RunLoop::TimerBase::ScheduledTask::isActive):
        (WTF::RunLoop::TimerBase::ScheduledTask::deactivate):
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::populateTasks):
        (WTF::RunLoop::runImpl):
        (WTF::RunLoop::run):
        (WTF::RunLoop::iterate):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::schedule):
        (WTF::RunLoop::scheduleAndWakeUp):
        (WTF::RunLoop::dispatchAfter):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):
        * wtf/generic/WorkQueueGeneric.cpp: Added.
        (WorkQueue::platformInitialize):
        (WorkQueue::platformInvalidate):
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/none/MainThreadNone.cpp:
        (WTF::initializeMainThreadPlatform): Deleted.
        (WTF::scheduleDispatchFunctionsOnMainThread): Deleted.
        * wtf/none/RunLoopNone.cpp:
        (WTF::RunLoop::RunLoop): Deleted.
        (WTF::RunLoop::~RunLoop): Deleted.
        (WTF::RunLoop::run): Deleted.
        (WTF::RunLoop::stop): Deleted.
        (WTF::RunLoop::wakeUp): Deleted.
        (WTF::RunLoop::TimerBase::TimerBase): Deleted.
        (WTF::RunLoop::TimerBase::~TimerBase): Deleted.
        (WTF::RunLoop::TimerBase::start): Deleted.
        (WTF::RunLoop::TimerBase::stop): Deleted.
        (WTF::RunLoop::TimerBase::isActive): Deleted.
        * wtf/none/WorkQueueNone.cpp:
        (WorkQueue::platformInitialize): Deleted.
        (WorkQueue::platformInvalidate): Deleted.
        (WorkQueue::dispatch): Deleted.
        (WorkQueue::dispatchAfter): Deleted.

2016-04-18  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r199621.
        https://bugs.webkit.org/show_bug.cgi?id=156708

        made windows tests crash (Requested by alexchristensen on
        #webkit).

        Reverted changeset:

        "iTunes crashing JavaScriptCore.dll"
        https://bugs.webkit.org/show_bug.cgi?id=156647
        http://trac.webkit.org/changeset/199621

2016-04-15  Michael Saboff  <msaboff@apple.com>

        iTunes crashing JavaScriptCore.dll
        https://bugs.webkit.org/show_bug.cgi?id=156647

        Reviewed by Geoffrey Garen.

        If a thread was created without using the WTF thread apis and that thread uses
        a JavaScript VM and that thread exits with the VM still around, JSC won't know
        that the thread has exited.  Currently, we use ThreadSpecificThreadExit() to
        clean up any thread specific keys.  Cleaning up these keys is how JSC is
        notified of a thread exit.  We only call ThreadSpecificThreadExit() from
        wtfThreadEntryPoint() when the thread entry point function returns.
        This mechanism was put in place for Windos because we layer the WTF::ThreadSpecific
        functionality on top of TLS (Thread Local Storage), but TLS doesn't have
        a thread exiting callback the way that pthread_create_key.

        The fix is to change from using TLS to using FLS (Fiber Local Storage).  Although
        Windows allows multiple fibers per thread, WebKit is not designed to work with a
        multiple fibers per thread.  When ther is only one fiber per thread, FLS works just
        like TLS, but it has the destroy callback.

        I restructured the Windows version of WTF::ThreadSpecific to be almost the same
        as the pthread version.
        
        * wtf/ThreadSpecific.h:
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::threadSpecificSet):
        (WTF::threadSpecificGet):
        (WTF::ThreadSpecific<T>::ThreadSpecific):
        (WTF::ThreadSpecific<T>::~ThreadSpecific):
        (WTF::ThreadSpecific<T>::get):
        (WTF::ThreadSpecific<T>::set):
        (WTF::ThreadSpecific<T>::destroy):
        Restructured to use FLS.  Renamed TLS* to FLS*.

        * wtf/ThreadSpecificWin.cpp:
        (WTF::flsKeyCount):
        (WTF::flsKeys):
        Renamed from tlsKey*() to flsKey*().

        (WTF::destructorsList): Deleted.
        (WTF::destructorsMutex): Deleted.
        (WTF::PlatformThreadSpecificKey::PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::~PlatformThreadSpecificKey): Deleted.
        (WTF::PlatformThreadSpecificKey::setValue): Deleted.
        (WTF::PlatformThreadSpecificKey::value): Deleted.
        (WTF::PlatformThreadSpecificKey::callDestructor): Deleted.
        (WTF::tlsKeyCount): Deleted.
        (WTF::tlsKeys): Deleted.
        (WTF::threadSpecificKeyCreate): Deleted.
        (WTF::threadSpecificKeyDelete): Deleted.
        (WTF::threadSpecificSet): Deleted.
        (WTF::threadSpecificGet): Deleted.
        (WTF::ThreadSpecificThreadExit): Deleted.

        * wtf/ThreadingWin.cpp:
        (WTF::wtfThreadEntryPoint): Eliminated call to ThreadSpecificThreadExit.

2016-04-12  Filip Pizlo  <fpizlo@apple.com>

        PolymorphicAccess should buffer AccessCases before regenerating
        https://bugs.webkit.org/show_bug.cgi?id=156457

        Reviewed by Benjamin Poulain.

        * wtf/TinyPtrSet.h:
        (WTF::TinyPtrSet::add): Add a helpful comment because I had forgotten what the bool return meant.

2016-04-12  Tomas Popela  <tpopela@redhat.com>

        S390X and PPC64 architectures detection is wrong
        https://bugs.webkit.org/show_bug.cgi?id=156337

        Reviewed by Carlos Garcia Campos.

        After the http://trac.webkit.org/changeset/198919 was committed
        it showed that the PPC64 detection is wrong as the CPU(PPC) path was
        activated even for PPC64. The thing is that GCC defines __ppc__
        even on PPC64 and not just on PPC(32). The same applies for S390X.

        * wtf/Platform.h:

2016-04-05  Oliver Hunt  <oliver@apple.com>

        Remove compile time define for SEPARATED_HEAP
        https://bugs.webkit.org/show_bug.cgi?id=155508

        Reviewed by Mark Lam.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2016-04-11  Fujii Hironori  <Hironori.Fujii@jp.sony.com>

        [CMake] Make FOLDER property INHERITED
        https://bugs.webkit.org/show_bug.cgi?id=156460

        Reviewed by Brent Fulgham.

        * CMakeLists.txt:
        Set FOLDER directory property

2016-04-08  Alex Christensen  <achristensen@webkit.org>

        Progress towards running CMake WebKit2 on Mac
        https://bugs.webkit.org/show_bug.cgi?id=156426

        Reviewed by Tim Horton.

        * wtf/PlatformMac.cmake:

2016-04-08  Yusuke Suzuki  <utatane.tea@gmail.com>

        [JSC] Enable Concurrent JIT by default
        https://bugs.webkit.org/show_bug.cgi?id=156341

        Reviewed by Filip Pizlo.

        We enable Concurrent JIT by default when DFG JIT and JSVALUE64 are enabled.
        This change offers Concurrent JIT to the JSCOnly port.

        * wtf/Platform.h:

2016-04-07  Joseph Pecoraro  <pecoraro@apple.com>

        Remove ENABLE(ENABLE_ES6_CLASS_SYNTAX) guards
        https://bugs.webkit.org/show_bug.cgi?id=156384

        Reviewed by Ryosuke Niwa.

        * wtf/FeatureDefines.h:

2016-04-06  Filip Pizlo  <fpizlo@apple.com>

        JSC should have a simple way of gathering IC statistics
        https://bugs.webkit.org/show_bug.cgi?id=156317

        Reviewed by Benjamin Poulain.
        
        Make it easier to do relative sleeping on a condition. Previously you could do this using
        std::chrono. I now believe that std::chrono is just a bad decision, and I always want to
        use doubles instead. This makes it easier to do the right thing and use doubles.

        * wtf/Condition.h:
        (WTF::ConditionBase::waitUntilMonotonicClockSeconds):
        (WTF::ConditionBase::waitForSeconds):

2016-04-06  Simon Fraser  <simon.fraser@apple.com>

        Fix Windows build by converting clampToInteger() into a template that only
        takes integral types.

        * wtf/MathExtras.h:
        (clampToInteger):

2016-04-06  Simon Fraser  <simon.fraser@apple.com>

        Page tiles are missing when graphics acceleration is unavailable
        https://bugs.webkit.org/show_bug.cgi?id=156325

        Reviewed by Tim Horton.

        Add clampToInteger(size_t).

        * wtf/MathExtras.h:
        (clampToInteger):

2016-04-05  Simon Fraser  <simon.fraser@apple.com>

        Implement operator== and operator!= for Optional<>
        https://bugs.webkit.org/show_bug.cgi?id=156266

        Reviewed by Anders Carlsson.
        
        Implement non-member operator== and operator!= variants for Optional<>.

        * wtf/Optional.h:
        (WTF::operator==):
        (WTF::operator!=):

2016-03-19  Filip Pizlo  <fpizlo@apple.com>

        DFG and FTL should constant-fold RegExpExec
        https://bugs.webkit.org/show_bug.cgi?id=155270

        Reviewed by Saam Barati.

        Make executeInsertions() return the amount by which the vector increased in size. This is a
        convenient feature that I use in DFG::InsertionSet.

        * wtf/Insertion.h:
        (WTF::executeInsertions):

2016-04-05  Antoine Quint  <graouts@apple.com>

        [WebGL2] Allow enabling WebGL2 with a runtime flag
        https://bugs.webkit.org/show_bug.cgi?id=156166
        <rdar://problem/25526929>

        Removed the manual overrides of ENABLE_WEBGL2.

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h:

2016-03-31  Konstantin Tokarev  <annulen@yandex.ru>

        Removed leftovers of ENABLE(INSPECTOR) and ENABLE(VIEWPORT).
        https://bugs.webkit.org/show_bug.cgi?id=156064

        Reviewed by Csaba Osztrogonác.

        This ifdef guards were removed in r178820 and r147714, respectively.

        * wtf/FeatureDefines.h:

2016-03-31  Brent Fulgham  <bfulgham@apple.com>

        [WK2] Support download attribute feature
        https://bugs.webkit.org/show_bug.cgi?id=102914
        <rdar://problem/13177492>

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h: Turn the ENABLE_DOWNLOAD_ATTRIBUTE flag
        on to see what happens.

2016-03-30  Brian Burg  <bburg@apple.com>

        Web Automation: Add Automation.performKeyboardInteractions
        https://bugs.webkit.org/show_bug.cgi?id=155990
        <rdar://problem/25426408>

        Reviewed by Timothy Hatcher.

        Add a missing NSEventType declaration.

        * wtf/mac/AppKitCompatibilityDeclarations.h:

2016-03-29  Benjamin Poulain  <bpoulain@apple.com>

        [WTF] Removing a smart pointer from HashTable issues two stores to the same location
        https://bugs.webkit.org/show_bug.cgi?id=155676

        Reviewed by Darin Adler.

        While working on the hot loop of r198376, I noticed something
        weird...
        Every time we removed a smart pointer from the hash table,
        the code generated was something like:
            Load([bucket]) -> Tmp
            Store(0 -> [bucket])
            JumpIfZero(Tmp, ->End)
            Call fastFree()
            Store(-1 -> [bucket])
            -> End:

        The useless store before the branch is annoying, especially on ARM.

        Here is what happens:
            1) The destructor of the smart pointer swaps its internal value with nullptr.
            2) Since the smart pointer is not a local in-register value, that nullptr
               is stored in memory because it could be observable from fastFree().
            3) The destructor destroy the value if not zero (or deref for RefPtr).
               The "if-not-zero" may or may not be eliminated depending on what
               is between getting the iterator and the call to remove().
            4) fastFree() is called.
            5) The deleted value is set in the bucket.

        This patch adds custom deletion for those cases to avoid the useless
        store. The useless null check is still eliminated when we are lucky.

        I went this path instead of changing the destructor of RefPtr for two reasons:
        -I need this to work in unique_ptr for JSC.
        -Nulling the memory may have security advantages in the cases where we do not immediately
         write over that memory again.

        This patch removes 13kb out of x86_64 WebCore.

        * wtf/HashTable.h:
        (WTF::HashTable::deleteBucket):
        (WTF::KeyTraits>::removeIf):
        * wtf/HashTraits.h:
        (WTF::HashTraits<RefPtr<P>>::customDeleteBucket):
        (WTF::hashTraitsDeleteBucket):
        (WTF::KeyValuePairHashTraits::customDeleteBucket):
        * wtf/text/AtomicStringHash.h:
        (WTF::HashTraits<WTF::AtomicString>::isEmptyValue):
        (WTF::HashTraits<WTF::AtomicString>::customDeleteBucket):
        * wtf/text/StringHash.h:
        (WTF::HashTraits<String>::customDeleteBucket):

2016-03-28  Brian Burg  <bburg@apple.com>

        Web Automation: implement Automation.performMouseInteraction
        https://bugs.webkit.org/show_bug.cgi?id=155606
        <rdar://problem/25227576>

        Reviewed by Timothy Hatcher.

        * wtf/mac/AppKitCompatibilityDeclarations.h: Add missing some NSEventTypes.

2016-03-29  Yusuke Suzuki  <utatane.tea@gmail.com>

        REGRESSION(r192914): 10% regression on Sunspider's date-format-tofte
        https://bugs.webkit.org/show_bug.cgi?id=155559

        Reviewed by Saam Barati.

        Add HashTable::inlineLookup and HashMap::fastGet.

        * wtf/HashMap.h:
        * wtf/HashTable.h:

2016-03-25  Alex Christensen  <achristensen@webkit.org>

        Add a compile time flag for using QTKit
        https://bugs.webkit.org/show_bug.cgi?id=155868

        Reviewed by Dan Bates.

        * wtf/Platform.h:

2016-03-24  Alex Christensen  <achristensen@webkit.org>

        Fix iOS9 performance regression after r197572
        https://bugs.webkit.org/show_bug.cgi?id=155845
        <rdar://problem/25144924>

        Reviewed by Chris Dumez.

        * wtf/Platform.h:
        Use CFURLConnection instead of NSURLConnection on internal iOS9 builds.

2016-03-23  Saam Barati  <sbarati@apple.com>

        SmallPtrSet leaks memory in its move assignment operator when !this->isSmall()
        https://bugs.webkit.org/show_bug.cgi?id=155701

        Reviewed by Darin Adler.

        * wtf/SmallPtrSet.h:
        (WTF::SmallPtrSet::SmallPtrSet):
        (WTF::SmallPtrSet::operator=):

2016-03-22  Per Arne Vollan  <peavo@outlook.com>

        [Win] [64-bit] Remove MSVC 2013 FMA3 Bug Workaround
        https://bugs.webkit.org/show_bug.cgi?id=141499

        Reviewed by Brent Fulgham.

        As we have moved on to VS2015, this workaround is no longer needed.

        * wtf/PlatformWin.cmake:
        * wtf/win/WTFDLL.cpp: Removed.

2016-03-20  Dan Bernstein  <mitz@apple.com>

        [Mac] Determine TARGET_MAC_OS_X_VERSION_MAJOR from MACOSX_DEPLOYMENT_TARGET rather than from MAC_OS_X_VERSION_MAJOR
        https://bugs.webkit.org/show_bug.cgi?id=155707
        <rdar://problem/24980691>

        Reviewed by Darin Adler.

        * Configurations/Base.xcconfig: Set TARGET_MAC_OS_X_VERSION_MAJOR based on the last
          component of MACOSX_DEPLOYMENT_TARGET.
        * Configurations/DebugRelease.xcconfig: For engineering builds, preserve the behavior of
          TARGET_MAC_OS_X_VERSION_MAJOR being the host’s OS version.

2016-03-20  Dan Bernstein  <mitz@apple.com>

        Update build settings

        Rubber-stamped by Andy Estes.

        * Configurations/DebugRelease.xcconfig:

2016-03-17  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Make CSE's ImpureData faster when dealing with large blocks
        https://bugs.webkit.org/show_bug.cgi?id=155594

        Reviewed by Filip Pizlo.

        * wtf/HashSet.h:
        (WTF::V>::removeIf):

2016-03-17  Saam barati  <sbarati@apple.com>

        Implement SmallPtrSet and integrate it into the Parser
        https://bugs.webkit.org/show_bug.cgi?id=155552

        Reviewed by Filip Pizlo.

        This patch implements the SmallPtrSet data struture.
        Inspired by the implementation in llvm:
        http://llvm.org/docs/doxygen/html/SmallPtrSet_8h_source.html

        The data structure uses an inline array for storage up until
        a fixed limit (8 entries in our implementation). If that storage
        fills up, we fall back to a simple hash table implementation.
        Crucially, this implementation doesn't support the remove
        operation. This is on purpose. The hash table will only ever
        grow.

        Also, the implementation allows for it to be memcopied around.
        I.e, we can put SmallPtrSet inside a Vector and allow that
        Vector to use memcpy as its move operation (of course this
        is only valid if the SmallPtrSet in the old memory doesn't have 
        its destructor called unless it is set back to its initial state.)

        For now, SmallPtrSet only supports pointer types that are trivially
        destructible. It's probably not too difficult to extend this to
        smart pointers, but it's not part of this original implementation.

        I've also implemented a pure forwarding varargs constructAndAppend
        method on Vector. This allows you to do:
        Vector<T> v;
        v.constructAndAppend(a1, a2, ...)
        as long as T has a constructor that accepts arguments (a1, a2, ...).

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/SmallPtrSet.h: Added.
        (WTF::SmallPtrSet::SmallPtrSet):
        (WTF::SmallPtrSet::operator=):
        (WTF::SmallPtrSet::~SmallPtrSet):
        (WTF::SmallPtrSet::add):
        (WTF::SmallPtrSet::contains):
        (WTF::SmallPtrSet::iterator::operator++):
        (WTF::SmallPtrSet::iterator::operator*):
        (WTF::SmallPtrSet::iterator::operator==):
        (WTF::SmallPtrSet::iterator::operator!=):
        (WTF::SmallPtrSet::begin):
        (WTF::SmallPtrSet::end):
        (WTF::SmallPtrSet::size):
        (WTF::SmallPtrSet::emptyValue):
        (WTF::SmallPtrSet::isValidEntry):
        (WTF::SmallPtrSet::isSmall):
        (WTF::SmallPtrSet::initialize):
        (WTF::SmallPtrSet::grow):
        (WTF::SmallPtrSet::bucket):
        * wtf/Vector.h:
        (WTF::Vector::append):
        (WTF::Vector::uncheckedAppend):
        (WTF::minCapacity>::append):
        (WTF::minCapacity>::constructAndAppend):
        (WTF::minCapacity>::appendSlowCase):
        (WTF::minCapacity>::constructAndAppendSlowCase):

2016-03-16  Filip Pizlo  <fpizlo@apple.com>

        Replace all of the various non-working and non-compiling sampling profiler hacks with a single super hack
        https://bugs.webkit.org/show_bug.cgi?id=155561

        Reviewed by Saam Barati.

        This patch replaces all of our various ad hoc profiling hacks with a single ad hoc profiling hack.
        That needs to be able to sleep a thread, so I added a portable way to do it.

        This also removes a bunch of ENABLE flags for all of the old non-working hacks.

        * wtf/CurrentTime.cpp:
        (WTF::currentCPUTime):
        (WTF::sleep):
        * wtf/CurrentTime.h:
        (WTF::sleepMS):
        * wtf/Platform.h:

2016-03-17  Chris Dumez  <cdumez@apple.com>

        Set the WebContent process's main thread QoS to USER-INTERACTIVE
        https://bugs.webkit.org/show_bug.cgi?id=155595
        <rdar://problem/22534965>

        Reviewed by Antti Koivisto.

        Add a relativePriority parameter to setCurrentThreadIsUser*() so that
        we can do more fine-grained prioritization of threads that have the
        same QoS.

        * wtf/Threading.cpp:
        (WTF::setCurrentThreadIsUserInteractive):
        (WTF::setCurrentThreadIsUserInitiated):
        (WTF::createThread): Deleted.
        * wtf/Threading.h:

2016-03-17  Filip Pizlo  <fpizlo@apple.com>

        Silence leaks in ParkingLot
        https://bugs.webkit.org/show_bug.cgi?id=155510

        Reviewed by Alexey Proskuryakov.

        ParkingLot has a concurrent hashtable that it reallocates on demand. It will not reallocate
        it in steady state. The hashtable is sized to accommodate the high watermark of the number
        of active threads - so long as the program doesn't just keep starting an unbounded number
        of threads that are all active, the hashtable will stop resizing. Each resize operation is
        designed to stay out of the way of the data-access-parallel normal path, in which two
        threads operating on different lock addresses don't have to synchronize. To do this, it
        simply drops the old hashtable without deleting it, so that threads that were still using
        it don't crash. They will realize that they have the wrong hashtable before doing anything
        bad, but we don't have a way of proving when all of those threads are no longer going to
        read from the old hashtables. So, we just leak them.

        This is a bounded leak, since the hashtable resizes exponentially. Thus the total memory
        utilization of all hashtables, including the leaked ones, converges to a linear function of
        the current hashtable's size (it's 2 * size of current hashtable).

        But this leak is a problem for leaks tools, which will always report this leak. This is not
        useful. It's better to silence the leak. That's what this patch does by ensuring that all
        hashtables, including leaked ones, end up in a global vector. This is perf-neutral.

        This requires making a StaticWordLock variant of WordLock. That's probably the biggest part
        of this change.

        * wtf/ParkingLot.cpp:
        * wtf/WordLock.cpp:
        (WTF::WordLockBase::lockSlow):
        (WTF::WordLockBase::unlockSlow):
        (WTF::WordLock::lockSlow): Deleted.
        (WTF::WordLock::unlockSlow): Deleted.
        * wtf/WordLock.h:
        (WTF::WordLockBase::lock):
        (WTF::WordLockBase::isLocked):
        (WTF::WordLock::WordLock):
        (WTF::WordLock::lock): Deleted.
        (WTF::WordLock::isLocked): Deleted.

2016-03-16  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r198235, r198240, r198241, and
        r198252.

        Causing crashes on ARM

        Reverted changesets:

        "Remove compile time define for SEPARATED_HEAP"
        https://bugs.webkit.org/show_bug.cgi?id=155508
        http://trac.webkit.org/changeset/198235

        "Gardening: build fix after r198235."
        http://trac.webkit.org/changeset/198240

        "Build fix."
        http://trac.webkit.org/changeset/198241

        "Rename performJITMemcpy to something more inline with our
        normal webkit function names"
        https://bugs.webkit.org/show_bug.cgi?id=155525
        http://trac.webkit.org/changeset/198252

2016-03-15  Oliver Hunt  <oliver@apple.com>

        Remove compile time define for SEPARATED_HEAP
        https://bugs.webkit.org/show_bug.cgi?id=155508

        Reviewed by Mark Lam.

        Remove the feature define.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2016-03-14  Mark Lam  <mark.lam@apple.com>

        Need to distinguish between Symbol() and Symbol("").
        https://bugs.webkit.org/show_bug.cgi?id=155438

        Reviewed by Saam Barati.

        While toString of both Symbol() and Symbol("") yields "Symbol()", Function.name
        should yield "" and "[]" respectively.  Hence, we need to tell between the two.
        This functionality will be needed later in https://bugs.webkit.org/show_bug.cgi?id=155437.

        We achieve this by creating another singleton instance like the empty StringImpl
        as the null StringImpl.  isNullSymbol() tests if the Stringimpl instance is a
        symbol, and its substring is the null() singleton.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createSymbol):
        (WTF::StringImpl::createNullSymbol):
        (WTF::StringImpl::containsOnlyWhitespace):
        (WTF::StringImpl::createSymbolEmpty): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::stringKind):
        (WTF::StringImpl::isSymbol):
        (WTF::StringImpl::isAtomic):
        (WTF::StringImpl::isNullSymbol):
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::null):

2016-03-13  Joseph Pecoraro  <pecoraro@apple.com>

        Remove ENABLE(ES6_TEMPLATE_LITERAL_SYNTAX) guards
        https://bugs.webkit.org/show_bug.cgi?id=155417

        Reviewed by Yusuke Suzuki.

        * wtf/FeatureDefines.h:

2016-03-13  Konstantin Tokarev  <annulen@yandex.ru>

        Added new port JSCOnly.
        https://bugs.webkit.org/show_bug.cgi?id=154512

        Reviewed by Michael Catanzaro.

        This port allows to build JavaScriptCore engine with minimal
        dependencies.

        * wtf/PlatformJSCOnly.cmake: Added.
        * wtf/none/MainThreadNone.cpp: Added.
        * wtf/none/RunLoopNone.cpp: Added.
        * wtf/none/WorkQueueNone.cpp: Added.

2016-03-13  David Kilzer  <ddkilzer@apple.com>

        REGRESSION (r198079): Windows build broke because of "%PRId64" format specifier

        This fixes the following build failure in WebCore for Windows:
            C:\Source\WebCore\page\DOMTimer.cpp(396): error C2146: syntax error: missing ')' before identifier 'PRId64' [C:\WebKitBuild\Debug\Source\WebCore\WebCore.vcxproj]
            C:\Source\WebCore\page\DOMTimer.cpp(399): error C2146: syntax error: missing ')' before identifier 'PRId64' [C:\WebKitBuild\Debug\Source\WebCore\WebCore.vcxproj]

        * wtf/StdLibExtras.h: Define "PRId64" for Windows here so it may
        be shared.  This should fix DOMTimer.cpp after r198079 since it
        already includes StdLibExtras.h.

2016-03-11  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        WTF should have a similar function as equalLettersIgnoringASCIICase to match beginning of strings
        https://bugs.webkit.org/show_bug.cgi?id=153419

        Reviewed by Darin Adler.

        Introducing startsWithLettersIgnoringASCIICase, to check the beginning of a string.
        Moving some code from WTF::equalLettersIgnoringASCIICaseCommonWithoutLength in
        WTF::hasPrefixWithLettersIgnoringASCIICaseCommon to enable reuse in
        WTF::startsWithLettersIgnoringASCIICaseCommon.

        * wtf/text/StringCommon.h:
        (WTF::hasPrefixWithLettersIgnoringASCIICaseCommon):
        (WTF::equalLettersIgnoringASCIICaseCommonWithoutLength):
        (WTF::startsWithLettersIgnoringASCIICaseCommonWithoutLength):
        (WTF::startsWithLettersIgnoringASCIICaseCommon):
        * wtf/text/StringImpl.h:
        (WTF::startsWithLettersIgnoringASCIICase):
        * wtf/text/WTFString.h:
        (WTF::startsWithLettersIgnoringASCIICase):

2016-03-10  Frederic Wang  <fwang@igalia.com>

        [GTK] Add support for WOFF2
        https://bugs.webkit.org/show_bug.cgi?id=152616

        Reviewed by Carlos Garcia Campos.

        * wtf/FeatureDefines.h: Enable USE_WOFF2 flag on GTK.

2016-03-09  Ryosuke Niwa  <rniwa@webkit.org>

        Add runtime flags for shadow DOM and custom elements
        https://bugs.webkit.org/show_bug.cgi?id=155213

        Reviewed by Dean Jackson.

        Removed the manual overrides of ENABLE_SHADOW_DOM and ENABLE_CUSTOM_ELEMENTS as they were
        making --no-shadow-dom and --no-custom-elements flags on build-webkit useless.

        * wtf/FeatureDefines.h:

2016-03-09  Keith Rollin  <krollin@apple.com>

        Add state dumping facility
        https://bugs.webkit.org/show_bug.cgi?id=154930
        <rdar://problem/24939135>

        Reviewed by Anders Carlsson.

        Add an OS_STATE flag to control the inclusion of process state dumping
        functionality.

        * wtf/Platform.h:

2016-03-09  Oliver Hunt  <oliver@apple.com>

        Fix old iOS

        * wtf/Platform.h:

2016-03-08  Filip Pizlo  <fpizlo@apple.com>

        Remove failing assertion. There are strings that claim to be atomic but that the
        compiler thread can totally deal with, like the empty string.

        Rubber stamped by Mark Lam.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::ref):
        (WTF::StringImpl::deref):

2016-03-08  Filip Pizlo  <fpizlo@apple.com>

        DFG should be able to constant-fold strings
        https://bugs.webkit.org/show_bug.cgi?id=155200

        Reviewed by Geoffrey Garen.

        Also disable assertions about reference counting strings on the JIT thread. We will do
        that now and it's OK.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::ref):
        (WTF::StringImpl::deref):

2016-03-08  Anders Carlsson  <andersca@apple.com>

        Fix AppKitCompatibilityDeclarations build.

        * wtf/mac/AppKitCompatibilityDeclarations.h:
        Remove duplicate declarations, conditionally define NSTextAlignment and
        add a NSWindowStyleMask typedef.

2016-03-08  Oliver Hunt  <oliver@apple.com>

        Start moving to separated writable and executable mappings in the JIT
        https://bugs.webkit.org/show_bug.cgi?id=155178

        Reviewed by Fil Pizlo.

        Update feature defines.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h: ARM64 for now.

2016-03-08  Anders Carlsson  <andersca@apple.com>

        Add AppKit compatibility header
        https://bugs.webkit.org/show_bug.cgi?id=155202

        Reviewed by Beth Dakin.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/mac/AppKitCompatibilityDeclarations.h: Added.

2016-03-08  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r197793 and r197799.
        https://bugs.webkit.org/show_bug.cgi?id=155195

        something weird happened while landing this and everything
        broke (Requested by olliej on #webkit).

        Reverted changesets:

        "Start moving to separated writable and executable mappings in
        the JIT"
        https://bugs.webkit.org/show_bug.cgi?id=155178
        http://trac.webkit.org/changeset/197793

        "arm64 build fix after r197793."
        http://trac.webkit.org/changeset/197799

2016-03-08  Oliver Hunt  <oliver@apple.com>

        Start moving to separated writable and executable mappings in the JIT
        https://bugs.webkit.org/show_bug.cgi?id=155178

        Reviewed by Filip Pizlo.

        Update feature defines.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h: ARM64 for now.

2016-03-08  Daniel Bates  <dabates@apple.com>

        Support iterating over an OptionSet and checking if it is empty
        https://bugs.webkit.org/show_bug.cgi?id=154941
        <rdar://problem/24964187>

        Reviewed by Darin Adler.

        Implements support for iterating over the enumerators in an OptionSet as well as
        determining if the set is empty.

        Iterating over an OptionSet is in Big Theta(N) where N is the number of items in
        the set. More precisely, it is in Big Theta(log M) where M is the bitmask represented
        by the bitwise OR-ing of all enumerators in the set.

        * wtf/OptionSet.h: Added comment to describe the purpose of this class and its invariant -
        the enumerators must be positive powers of two.
        (WTF::OptionSet::Iterator::operator*): Returns the enumerator pointed to by the iterator.
        (WTF::OptionSet::Iterator::operator++): Advance to the next smallest enumerator in the set.
        (WTF::OptionSet::Iterator::operator==): Returns whether the iterator is equal to the specified iterator.
        (WTF::OptionSet::Iterator::operator!=): Returns whether the iterator is not equal to the specified iterator.
        (WTF::OptionSet::Iterator::Iterator): Added.
        (WTF::OptionSet::fromRaw): Instantiate using specialized private constructor to allow
        instantiation with a raw value of 0.
        (WTF::OptionSet::OptionSet): Specialized constructor that asserts that the specified value
        is a positive power of two. This variant is only compiled when assertions are enabled (i.e. !ASSERT_DISABLED).
        (WTF::OptionSet::isEmpty): Returns whether the set is empty.
        (WTF::OptionSet::begin): Returns an iterator to the enumerator with the smallest value in the set.
        (WTF::OptionSet::end): Returns an iterator that represents the end sentinel of the set.

2016-03-07  Keith Rollin  <krollin@apple.com>

        Enhance logging: Use "always on" macros
        https://bugs.webkit.org/show_bug.cgi?id=154499
        <rdar://problem/24757730>

        Reviewed by Chris Dumez.

        Update LOG_ALWAYS and LOG_ALWAYS_ERROR macros to take an expression to
        be evaluated. If the expression evaluates to True, the associated
        message is logged. This facility is used to prevent logging from being
        performed in private sessions, but it could be extended to prevent
        logging under other circumstances as well.

        * wtf/Assertions.h:

2016-03-04  Alex Christensen  <achristensen@webkit.org>

        Remove vcxproj build system
        https://bugs.webkit.org/show_bug.cgi?id=154388

        Rubber-stamped by Brent Fulgham.

        * WTF.vcxproj/WTF.submit.sln: Removed.
        * WTF.vcxproj/WTF.vcxproj: Removed.
        * WTF.vcxproj/WTF.vcxproj.filters: Removed.
        * WTF.vcxproj/WTFCFLite.props: Removed.
        * WTF.vcxproj/WTFCommon.props: Removed.
        * WTF.vcxproj/WTFCoreFoundation.props: Removed.
        * WTF.vcxproj/WTFDebug.props: Removed.
        * WTF.vcxproj/WTFDebugWinCairo.props: Removed.
        * WTF.vcxproj/WTFGenerated.make: Removed.
        * WTF.vcxproj/WTFGenerated.vcxproj: Removed.
        * WTF.vcxproj/WTFGenerated.vcxproj.filters: Removed.
        * WTF.vcxproj/WTFGeneratedCommon.props: Removed.
        * WTF.vcxproj/WTFGeneratedDebug.props: Removed.
        * WTF.vcxproj/WTFGeneratedProduction.props: Removed.
        * WTF.vcxproj/WTFGeneratedRelease.props: Removed.
        * WTF.vcxproj/WTFPostBuild.cmd: Removed.
        * WTF.vcxproj/WTFPreBuild.cmd: Removed.
        * WTF.vcxproj/WTFProduction.props: Removed.
        * WTF.vcxproj/WTFRelease.props: Removed.
        * WTF.vcxproj/WTFReleaseWinCairo.props: Removed.
        * WTF.vcxproj/build-generated-files.pl: Removed.
        * WTF.vcxproj/copy-files.cmd: Removed.
        * WTF.vcxproj/work-around-vs-dependency-tracking-bugs.py: Removed.

2016-03-04  Alex Christensen  <achristensen@webkit.org>

        Use NSURLSession for loading in WebKit2
        https://bugs.webkit.org/show_bug.cgi?id=154993

        Reviewed by Sam Weinig.

        * wtf/Platform.h:

2016-03-03  Daniel Bates  <dabates@apple.com>

        Add unit tests for WTF::OptionSet
        https://bugs.webkit.org/show_bug.cgi?id=154925
        <rdar://problem/24964211>

        Reviewed by Darin Adler.

        * wtf/CMakeLists.txt: Add header OptionSet.h to the list of WTF headers.
        * wtf/OptionSet.h: Use in-class initialization to initialize m_storage and declare
        the trivial constexpr constructor as default.
        (WTF::OptionSet::OptionSet): For convenience add a constructor that takes a std::initializer_list.
        This code was written by Anders Carlsson.

2016-03-03  Andy Estes  <aestes@apple.com>

        Adopt CFNetwork storage partitioning SPI
        https://bugs.webkit.org/show_bug.cgi?id=154957
        rdar://problem/23614620

        Reviewed by Darin Adler.

        * wtf/Platform.h: Defined HAVE_CFNETWORK_STORAGE_PARTITIONING.

2016-03-02  Konstantin Tokarev  <annulen@yandex.ru>

        [cmake] Moved PRE/POST_BUILD_COMMAND to WEBKIT_FRAMEWORK.
        https://bugs.webkit.org/show_bug.cgi?id=154651

        Reviewed by Alex Christensen.

        * CMakeLists.txt: Moved shared code to WEBKIT_FRAMEWORK macro.

2016-03-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r197226 and r197256.
        https://bugs.webkit.org/show_bug.cgi?id=154910

        Caused crashes on Mac 32-bit and on ARM (Requested by ap on
        #webkit).

        Reverted changesets:

        "Remove the on demand executable allocator"
        https://bugs.webkit.org/show_bug.cgi?id=154749
        http://trac.webkit.org/changeset/197226

        "CLoop build fix."
        http://trac.webkit.org/changeset/197256

2016-03-01  Alex Christensen  <achristensen@webkit.org>

        Reduce size of internal windows build output
        https://bugs.webkit.org/show_bug.cgi?id=154763

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.proj:

2016-03-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r197056.
        https://bugs.webkit.org/show_bug.cgi?id=154870

        broke win ews (Requested by alexchristensen on #webkit).

        Reverted changeset:

        "[cmake] Moved PRE/POST_BUILD_COMMAND to WEBKIT_FRAMEWORK."
        https://bugs.webkit.org/show_bug.cgi?id=154651
        http://trac.webkit.org/changeset/197056

2016-02-29  Gavin Barraclough  <barraclough@apple.com>

        RefCounter<T>::Event -> RefCounterEvent
        https://bugs.webkit.org/show_bug.cgi?id=154767

        Reviewed by Darin Adler.

        RefCounter<T>::Event is kinda verbose to use, and there is no need for this
        to be specific to a particular typeof RefCounter. Move the enum class up to
        the top level & rename to RefCounterEvent.

        * wtf/RefCounter.h:
        (WTF::RefCounter<T>::Count::ref):
        (WTF::RefCounter<T>::Count::deref):

2016-02-26  Oliver Hunt  <oliver@apple.com>

        Remove the on demand executable allocator
        https://bugs.webkit.org/show_bug.cgi?id=154749

        Reviewed by Geoffrey Garen.

        Remove the DeamndExecutableAllocator compile flags.

        * wtf/Platform.h:

2016-02-26  Keith Rollin  <krollin@apple.com>

        Enhance logging: Add "always on" macros
        https://bugs.webkit.org/show_bug.cgi?id=154498
        <rdar://problem/24757759>

        Reviewed by Chris Dumez.

        Add support for efficient always-on logging (logging that is available
        in both debug and release builds). This is implemented in the form of
        some new macros:

        - LOG_ALWAYS: Always log information-level statements.
        - LOG_ALWAYS_ERROR: Always log error-level statements. These can be
          filtered out of the normal logging so that they can be found more
          easily.

        In cases where there is no efficient underlying facility for it to
        utilize, LOG_ALWAYS_ERROR is redirected to WTFReportError as a backup
        mechanism. LOG_ALWAYS is not given a similar treatment so that we
        don't overwhelm other logging systems that aren't prepared for "always
        on" logging.

        * wtf/Assertions.h:
        * wtf/Platform.h:

2016-02-26  Anders Carlsson  <andersca@apple.com>

        Add WTF::OptionSet and use it for the website data types enum
        https://bugs.webkit.org/show_bug.cgi?id=154733

        Reviewed by Geoffrey Garen.

        Add WTF::OptionSet which makes it easier to use strong enums as flags.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Forward.h:
        * wtf/OptionSet.h: Copied from Source/WebKit2/Shared/WebsiteData/WebsiteData.h.
        (WTF::OptionSet::fromRaw):
        (WTF::OptionSet::OptionSet):
        (WTF::OptionSet::toRaw):
        (WTF::OptionSet::contains):
        (WTF::OptionSet::operator|=):

2016-02-26  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r197168.
        https://bugs.webkit.org/show_bug.cgi?id=154728

        crashing on some devices (Requested by kling on #webkit).

        Reverted changeset:

        "[Darwin] Use vm_kernel_page_size for WTF::pageSize()."
        https://bugs.webkit.org/show_bug.cgi?id=154726
        http://trac.webkit.org/changeset/197168

2016-02-26  Andreas Kling  <akling@apple.com>

        [Darwin] Use vm_kernel_page_size for WTF::pageSize().
        <https://webkit.org/b/154726>

        Reviewed by Antti Koivisto.

        Make sure we use the right VM page size on Darwin systems.
        On devices where the native page size is 4 KB, it's both
        possible and profitable to madvise in smaller chunks.

        * wtf/PageBlock.cpp:
        (WTF::systemPageSize):

2016-02-25  Gavin Barraclough  <barraclough@apple.com>

        RefCounter value changed callback should be called on all changes (not just zero edge).
        https://bugs.webkit.org/show_bug.cgi?id=154699

        Reviewed by Anders Carlsson.

        RefCounter currently only triggers a callback when the count goes from zero
        to non-zero and vice-versa. Change that, to be useful to more clients.

        * wtf/RefCounter.h:
        (WTF::RefCounter::Count::Count):
        (WTF::RefCounter::RefCounter):
            - Removed superfluous WTF_EXPORT_PRIVATE.
        (WTF::RefCounter::value):
            - Changed value() to a size_t.
        (WTF::RefCounter<T>::Count::ref):
        (WTF::RefCounter<T>::Count::deref):
            - Trigger the callback on all increments/decrements.
        (WTF::RefCounter<T>::RefCounter):
            - Changed siganture of callback.

2016-02-25  Gavin Barraclough  <barraclough@apple.com>

        Replace RefCounter::Token implementation with RefPtr
        https://bugs.webkit.org/show_bug.cgi?id=154698

        Reviewed by Anders Carlsson.

        * wtf/RefCounter.h:
        (WTF::RefCounter::RefCounter):
        (WTF::RefCounter::count):
        (WTF::RefCounter::value):
        (WTF::RefCounter<T>::~RefCounter):
        (WTF::RefCounter::Token::Token): Deleted.
        (WTF::RefCounter::Token::operator bool): Deleted.
        (WTF::RefCounter<T>::Token::Token): Deleted.
        (WTF::=): Deleted.
            - Delete.

2016-02-25  Gavin Barraclough  <barraclough@apple.com>

        Should template RefCounter instead of RefCounter::Token
        https://bugs.webkit.org/show_bug.cgi?id=154691

        Speculative windows build fix.

        * wtf/RefCounter.h:
        (WTF::RefCounter::RefCounter):
        (WTF::RefCounter::count):

2016-02-25  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r197137.
        https://bugs.webkit.org/show_bug.cgi?id=154700

        broke windows build (Requested by alexchristensen on #webkit).

        Reverted changeset:

        "Replace RefCounter::Token implementation with RefPtr"
        https://bugs.webkit.org/show_bug.cgi?id=154698
        http://trac.webkit.org/changeset/197137

2016-02-25  Gavin Barraclough  <barraclough@apple.com>

        Replace RefCounter::Token implementation with RefPtr
        https://bugs.webkit.org/show_bug.cgi?id=154698

        Reviewed by Anders Carlsson.

        * wtf/RefCounter.h:
        (WTF::RefCounter::RefCounter):
        (WTF::RefCounter::count):
        (WTF::RefCounter::value):
        (WTF::RefCounter<T>::~RefCounter):
        (WTF::RefCounter::Token::Token): Deleted.
        (WTF::RefCounter::Token::operator bool): Deleted.
        (WTF::RefCounter<T>::Token::Token): Deleted.
        (WTF::=): Deleted.
            - Delete.

2016-02-25  Gavin Barraclough  <barraclough@apple.com>

        Should template RefCounter instead of RefCounter::Token
        https://bugs.webkit.org/show_bug.cgi?id=154691

        Reviewed by Anders Carlsson.

        My real goal here is to make the counter accurate. Currently returning a Token from token<>()
        results in ref-count churn. Fixing this either means changing the return value, or improving
        Token (which will probably mean replacing it with RefPtr). Either way would break the current
        type checking. Move type tag to RefCount so this can still be enforced.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/RefCounter.cpp: Removed.
            - Removed RefCounter.cpp.
        * wtf/RefCounter.h:
        (WTF::RefCounter::Token::Token):
        (WTF::RefCounter::Token::operator bool):
        (WTF::RefCounter::RefCounter):
        (WTF::RefCounter::count):
        (WTF::RefCounter::value):
        (WTF::RefCounter<T>::Count::ref):
        (WTF::RefCounter<T>::Count::deref):
        (WTF::RefCounter<T>::RefCounter):
        (WTF::RefCounter<T>::~RefCounter):
        (WTF::RefCounter<T>::Token::Token):
        (WTF::=):
        (WTF::RefCounter::token): Deleted.
        (WTF::RefCounter::Token<T>::Token): Deleted.
            - RefCounter -> RefCounter<T>,
            - Token<T> -> Token,
            - renamed token<>() -> count().

2016-02-25  Sam Weinig  <sam@webkit.org>

        HashMap::ensure() should return an AddResult like all the other add-like functions.
        https://bugs.webkit.org/show_bug.cgi?id=154680

        Reviewed by Anders Carlsson.

        While adopting HashMap::ensure(), I found it was useful in some circumstances to know
        if the value was added or not. While I could discern this information by setting a bool
        in the passed in lambda, it seemed clearer and more idiomatic to just have ensure return
        an AddResult like all the other add-like functions do.

        * wtf/HashMap.h:
        Change return type of HashMap::ensure() to be an AddResult.

2016-02-24  Nikos Andronikos  <nikos.andronikos-webkit@cisra.canon.com.au>

        [web-animations] Add AnimationTimeline, DocumentTimeline and add extensions to Document interface
        https://bugs.webkit.org/show_bug.cgi?id=151688

        Reviewed by Dean Jackson.

        Enables the WEB_ANIMATIONS compiler switch.

        * wtf/FeatureDefines.h:

2016-02-24  Konstantin Tokarev  <annulen@yandex.ru>

        [cmake] Moved PRE/POST_BUILD_COMMAND to WEBKIT_FRAMEWORK.
        https://bugs.webkit.org/show_bug.cgi?id=154651

        Reviewed by Alex Christensen.

        * CMakeLists.txt: Moved shared code to WEBKIT_FRAMEWORK macro.

2016-02-23  Dan Bernstein  <mitz@apple.com>

        [Xcode] Linker errors display mangled names, but no longer should
        https://bugs.webkit.org/show_bug.cgi?id=154632

        Reviewed by Sam Weinig.

        * Configurations/Base.xcconfig: Stop setting LINKER_DISPLAYS_MANGLED_NAMES to YES.

2016-02-23  Gavin Barraclough  <barraclough@apple.com>

        Remove HIDDEN_PAGE_DOM_TIMER_THROTTLING feature define
        https://bugs.webkit.org/show_bug.cgi?id=112323

        Reviewed by Chris Dumez.

        This feature is controlled by a runtime switch, and defaults off.

        * wtf/FeatureDefines.h:

2016-02-22  Konstantin Tokarev  <annulen@yandex.ru>

        [cmake] Moved library setup code to WEBKIT_FRAMEWORK macro.
        https://bugs.webkit.org/show_bug.cgi?id=154450

        Reviewed by Alex Christensen.

        * wtf/CMakeLists.txt:

2016-02-20  Mark Lam  <mark.lam@apple.com>

        Use of inlined asm statements causes problems for -std=c99 builds.
        https://bugs.webkit.org/show_bug.cgi?id=154507

        Reviewed by Dan Bernstein.

        WTF's Assertions.h may inadvertantly get included by other projects that are built
        with -std=c99.  The use of the inlined asm statements with the keyword "asm" is
        not recognized when the -std compiler flag is used.

        https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html says "When writing code that
        can be compiled with -ansi and the various -std options, use __asm__ instead of
        asm (see Alternate Keywords)."

        So, to be a good citizen, we can change the use of "asm" in CRASH() to "__asm__"
        so that we don't break the build of such other projects.

        * wtf/Assertions.h:

2016-02-18  Brent Fulgham  <bfulgham@apple.com>

        Extend HashCountedSet with a method to efficiently set the count of an entry
        https://bugs.webkit.org/show_bug.cgi?id=154352

        Reviewed by Geoffrey Garen.

        Tested by new TestWebKitAPI tests.

        Update the HashCountedSet class with a new 'add' method to support efficient initialization of
        the count of a given key. Also provide move and pointer template specializations to expand the
        types of data that can be used as 'keys' in the HashCountedSet to match the underlying HashMap
        implementation.

        * wtf/HashCountedSet.h:
        (WTF::Traits>::add): Added new overload supporting a supplied count.

2016-02-18  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r196791.
        https://bugs.webkit.org/show_bug.cgi?id=154438

        broke windows build (Requested by alexchristensen on #webkit).

        Reverted changeset:

        "Extend HashCountedSet with a method to efficiently set the
        count of an entry"
        https://bugs.webkit.org/show_bug.cgi?id=154352
        http://trac.webkit.org/changeset/196791

2016-02-18  Brent Fulgham  <bfulgham@apple.com>

        Extend HashCountedSet with a method to efficiently set the count of an entry
        https://bugs.webkit.org/show_bug.cgi?id=154352

        Reviewed by Geoffrey Garen.

        Tested by new TestWebKitAPI tests.

        Update the HashCountedSet class with a new 'add' method to support efficient initialization of
        the count of a given key. Also provide move and pointer template specializations to expand the
        types of data that can be used as 'keys' in the HashCountedSet to match the underlying HashMap
        implementation.

        * wtf/HashCountedSet.h:
        (WTF::Traits>::add): Added new overload supporting a supplied count.

2016-02-17  Filip Pizlo  <fpizlo@apple.com>

        Remove LLVM dependencies from WebKit
        https://bugs.webkit.org/show_bug.cgi?id=154323

        Reviewed by Antti Koivisto and Benjamin Poulain.

        * wtf/Platform.h:

2016-02-16  Sam Weinig  <sam@webkit.org>

        Add an ensure function on HashMap that takes a key and a function to make the lazy value initialization idiom easier
        https://bugs.webkit.org/show_bug.cgi?id=134857

        Reviewed by Geoffrey Garen.

        The current idiom for adding a value to a HashMap if the key is not already present, to allow for not
        unnecessarily constructing the new value if it won't be used, is:
        
        {
            auto result = map.add(key, Value());
            if (!result.isNewEntry)
                return result.iterator->value;

            result.iterator->value = createNewValue();
            return result.iterator->value;
        }

        or sometimes

        {
            auto& value = map.add(key, Value()).iterator->value;
            if (!value)
                value = createNewValue();
            return value;
        }

        With this patch, you can now use the new function HashMap::ensure(key, functor). This will allow us to 
        change to using the following idiom:

        {
            return map.ensure(key, [] { return createNewValue(); });
        }

        The passed in functor will only be called if the key is not already present in the HashMap.

        * wtf/HashMap.h:
        (WTF::HashMapTranslator::translate):
        (WTF::HashMapEnsureTranslator::hash):
        (WTF::HashMapEnsureTranslator::equal):
        (WTF::HashMapEnsureTranslator::translate):
        (WTF::HashMapTranslatorAdapter::hash):

2016-02-16  Filip Pizlo  <fpizlo@apple.com>

        FTL_USES_B3 should be unconditionally true
        https://bugs.webkit.org/show_bug.cgi?id=154324

        Reviewed by Benjamin Poulain.

        * wtf/Platform.h:

2016-02-13  Mark Lam  <mark.lam@apple.com>

        Eliminate the need for WTFCrashImpl().
        https://bugs.webkit.org/show_bug.cgi?id=154202

        Reviewed by Alexey Proskuryakov.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2016-02-12  Sukolsak Sakshuwong  <sukolsak@gmail.com>

        Update ICU header files to version 52
        https://bugs.webkit.org/show_bug.cgi?id=154160

        Reviewed by Alex Christensen.

        Update ICU header files to version 52 to allow the use of newer APIs.

        * icu/unicode/bytestream.h:
        * icu/unicode/localpointer.h:
        * icu/unicode/platform.h:
        * icu/unicode/ptypes.h:
        * icu/unicode/putil.h:
        * icu/unicode/rep.h:
        (Replaceable::Replaceable):
        * icu/unicode/std_string.h:
        * icu/unicode/strenum.h:
        * icu/unicode/stringpiece.h:
        * icu/unicode/uchar.h:
        * icu/unicode/ucnv.h:
        * icu/unicode/ucol.h:
        * icu/unicode/uconfig.h:
        * icu/unicode/uenum.h:
        * icu/unicode/uiter.h:
        * icu/unicode/uloc.h:
        * icu/unicode/umachine.h:
        * icu/unicode/unistr.h:
        (UnicodeString::UnicodeString):
        (UnicodeString::operator== ):
        (UnicodeString::startsWith):
        (UnicodeString::setTo):
        (UnicodeString::remove):
        (UnicodeString::replace): Deleted.
        (UnicodeString::extract): Deleted.
        (UnicodeString::char32At): Deleted.
        (UnicodeString::getChar32Start): Deleted.
        (UnicodeString::getChar32Limit): Deleted.
        (UnicodeString::getTerminatedBuffer): Deleted.
        (UnicodeString::append): Deleted.
        (UnicodeString::truncate): Deleted.
        * icu/unicode/unorm2.h:
        * icu/unicode/uobject.h:
        * icu/unicode/urename.h:
        * icu/unicode/uscript.h:
        * icu/unicode/uset.h:
        * icu/unicode/ustring.h:
        * icu/unicode/utf.h:
        * icu/unicode/utf16.h:
        * icu/unicode/utf8.h:
        * icu/unicode/utf_old.h:
        * icu/unicode/utypes.h:
        * icu/unicode/uvernum.h:
        * icu/unicode/uversion.h:

2016-02-11  Mark Lam  <mark.lam@apple.com>

        Need WTFCrash workaround for shipping SafariForWebKitDevelopment binaries.
        https://bugs.webkit.org/show_bug.cgi?id=154125

        Reviewed by Joseph Pecoraro.

        Presently shipping SafariForWebKitDevelopment binaries still expect to link to a
        WTFCrash function.  We need to provide this function as a workaround until we can
        update SafariForWebKitDevelopment to use the new inlined version.

        We do this by doing:
        1. Make WTFCrashImpl() the sole function for implementing a crash.
           The CRASH() macro is now defined to be WTFCrashImpl() instead of WTFCrash().
        2. Renamed the legacy WTFCrash() to WTFCrashImpl() for debug or non-Darwin builds.
           For (non-debug && OS(DARWIN)) builds, WTFCrashImpl() will be an inlined
           function with an asm statement that issues a breakpoint trap.
        3. Implement WTFCrash() as a function that calls CRASH().
           This satisfies the need of shipping SafariForWebKitDevelopment binaries.
        4. Change WTFCrashWithSecurityImplication() to call CRASH().
           This ensures that we have a consistent implementation of how we crash.
        5. Changed WTFLogAlwaysAndCrash() to call CRASH() instead of WTFCrash().
           This is just to have consistency in that all code in the WebKit project
           now crashes by calling CRASH(), not WTFCrash().

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2016-02-09  Mark Lam  <mark.lam@apple.com>

        Changed WTFCrash to not trash the crash site register state.
        https://bugs.webkit.org/show_bug.cgi?id=153996

        Reviewed by Geoffrey Garen.

        When doing post-mortem crash site analysis using data from crash reports, it is
        immensely valuable to be able to infer the crashing program's state from the
        register values at crash time.  However, for RELEASE_ASSERT failures, we crash
        using WTFCrash(), and WTFCrash() is currently implemented as a function call
        that, in turn, calls a lot of other functions to do crash handling before
        actually crashing.  As a result, the register values captured in the crash
        reports are not likely to still contain the values used by the caller function
        that failed the RELEASE_ASSERT.

        This patch aims to remedy this issue for non-debug builds on OS(DARWIN) ports.
        It does so by changing WTFCrash() into an inlined function that has an inlined
        asm statement to issues the CPU specific breakpoint trap instruction.  As a
        result, for non-debug OS(DARWIN) builds, crashes due to failed RELEASE_ASSERTs
        will now show up in crash reports as crashing due to EXC_BREAKPOINT (SIGTRAP)
        instead of a EXC_BAD_ACCESS (SIGSEGV) on address 0xbbadbeef.

        For debug and non-DARWIN builds, WTFCrash() behavior currently remains unchanged.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2016-02-09  Csaba Osztrogonác  <ossy@webkit.org>

        [GTK][EFL] Fix several build configuration related to SamplingProfiler after r196245
        https://bugs.webkit.org/show_bug.cgi?id=154033

        Reviewed by Michael Catanzaro.

        * wtf/Platform.h:

2016-02-08  Filip Pizlo  <fpizlo@apple.com>

        Make sure that locking code that relies on module boundaries for compiler fences uses NEVER_INLINE
        https://bugs.webkit.org/show_bug.cgi?id=153972

        Reviewed by Andreas Kling.

        When this code was written, we assumed that module boundaries were compiler fences. That might
        not be the case if we ever do LTO.

        * wtf/Lock.cpp:
        (WTF::LockBase::lockSlow):
        (WTF::LockBase::unlockSlow):
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkAll):
        (WTF::ParkingLot::forEach):
        * wtf/WordLock.cpp:
        (WTF::WordLock::lockSlow):
        (WTF::WordLock::unlockSlow):

2016-02-07  Yusuke Suzuki  <utatane.tea@gmail.com>

        [GTK][EFL] Enable SamplingProfiler
        https://bugs.webkit.org/show_bug.cgi?id=153638

        Reviewed by Michael Catanzaro.

        * wtf/Platform.h:

2016-02-07  Dan Bernstein  <mitz@apple.com>

        [Cocoa] Replace __has_include guards around inclusion of Apple-internal-SDK headers with USE(APPLE_INTERNAL_SDK)
        https://bugs.webkit.org/show_bug.cgi?id=153963

        Reviewed by Sam Weinig.

        * wtf/SystemTracing.h:
        * wtf/WTFThreadData.h:
        * wtf/spi/darwin/CommonCryptoSPI.h:

2016-02-06  Darin Adler  <darin@apple.com>

        Finish auditing call sites of upper() and lower(), eliminate many, and rename the functions
        https://bugs.webkit.org/show_bug.cgi?id=153905

        Reviewed by Sam Weinig.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::lower): Deleted.
        * wtf/text/AtomicString.h: Deleted the lower function.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::convertToLowercaseWithoutLocale): Renamed from lower.
        (WTF::StringImpl::convertToUppercaseWithoutLocale): Renamed from upper.
        (WTF::StringImpl::convertToLowercaseWithLocale): Renamed from lower.
        (WTF::StringImpl::convertToUppercaseWithLocale): Renamed from upper.
        (WTF::StringImpl::foldCase): Added fast cases for ASCII since this is
        now used in some more-performance-critical code.
        * wtf/text/StringImpl.h: Renamed lower and upper.

        * wtf/text/WTFString.cpp:
        (WTF::String::convertToLowercaseWithoutLocale): Renamed from lower.
        (WTF::String::convertToUppercaseWithoutLocale): Renamed from upper.
        (WTF::String::convertToLowercaseWithLocale): Renamed from lower.
        (WTF::String::convertToUppercaseWithLocale): Renamed from upper.
        * wtf/text/WTFString.h: Renamed lower and upper. Removed unneeded comment.

2016-02-03  Darin Adler  <darin@apple.com>

        Convert another batch of String::lower callsites to something better, typically convertToASCIILowercase
        https://bugs.webkit.org/show_bug.cgi?id=153789

        Reviewed by Sam Weinig.

        * wtf/text/StringView.h:
        (WTF::StringView::toInt): Added an overload without the out parameter.

2016-02-03  Michael Catanzaro  <mcatanzaro@igalia.com>

        [GTK][EFL] Switch FTL to B3
        https://bugs.webkit.org/show_bug.cgi?id=153478

        Reviewed by Csaba Osztrogonác.

        Enable B3 by default on all x86.

        * wtf/Platform.h:

2016-02-03  Anders Carlsson  <andersca@apple.com>

        Fix BlockPtr's call operator
        https://bugs.webkit.org/show_bug.cgi?id=153836

        Reviewed by Enrica Casucci.

        * wtf/BlockPtr.h:

2016-02-01  Said Abou-Hallawa  <sabouhallawa@apple.com>

        Cache the Path instead of creating it every time it is required
        https://bugs.webkit.org/show_bug.cgi?id=152939

        Reviewed by Darin Adler.

        If the key type of an LRU cache can't to be strongly tided to a specific
        data type; e.g. FloatRect -> Path, we need to be able to pass the policy
        type to the TinyLRUCache template instead of just specializing it. This
        will make the code more readable and will allow different caches for the
        same key type.

        * wtf/TinyLRUCache.h:
        (WebCore::TinyLRUCache::get):

2016-02-01  Alex Christensen  <achristensen@webkit.org>

        [Win] WTFHeaderDetection.h no longer needed
        https://bugs.webkit.org/show_bug.cgi?id=153753
        rdar://problem/24434627

        Reviewed by Darin Adler.

        * wtf/Platform.h:
        * wtf/PlatformWin.cmake:

2016-01-31  Darin Adler  <darin@apple.com>

        Cut down on calls to String::lower; mostly replace with convertToASCIILowercase
        https://bugs.webkit.org/show_bug.cgi?id=153732

        Reviewed by Dean Jackson.

        * wtf/text/StringView.h: Added toIntStrict. Not thrilled about the name of this
        function, but generally it seems likely to be useful more often than toInt.
        And it's needed for one call site in WebCore that was using String::lower.

2016-01-31  Darin Adler  <darin@apple.com>

        Get rid of most calls to String::upper; mostly replace them with convertToASCIIUppercase
        https://bugs.webkit.org/show_bug.cgi?id=153715

        Reviewed by Gyuyoung Kim.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::upper): Deleted.

2016-01-31  Dan Bernstein  <mitz@apple.com>

        [Cocoa] Remove unused definition of HAVE_HEADER_DETECTION_H
        https://bugs.webkit.org/show_bug.cgi?id=153729

        Reviewed by Sam Weinig.

        After r141700, HAVE_HEADER_DETECTION_H is no longer used.

        * Configurations/Base.xcconfig:

2016-01-31  Darin Adler  <darin@apple.com>

        Replace CaseFoldingHash with ASCIICaseInsensitiveHash
        https://bugs.webkit.org/show_bug.cgi?id=153639

        Reviewed by Filip Pizlo.

        * wtf/text/StringHash.h: Renamed CaseFoldingHash to ASCIICaseInsensitiveHash.
        (WTF::ASCIICaseInsensitiveHash::foldCase): Use toASCIILower.
        (WTF::ASCIICaseInsensitiveHash::equal): Use equalIgnoringASCIICase.
        Also added some assertions.

        * wtf/text/StringImpl.cpp: Made the latin1CaseFoldTable private to this file,
        since it's no longer needed by CaseFoldingHash. Moved it up before its first use.
        (WTF::equalCompatibilityCaseless): Fixed typo in the name of this function.
        (WTF::equalCompatibiltyCaselessNonNull): Deleted.

        * wtf/text/StringImpl.h: Removed declarations of latin1CaseFoldTable and
        equalCompatibiltyCaselessNonNull

2016-01-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r195911.
        https://bugs.webkit.org/show_bug.cgi?id=153723

        Caused frequent assertion failures on bots (Requested by ap on
        #webkit).

        Reverted changeset:

        "Replace CaseFoldingHash with ASCIICaseInsensitiveHash"
        https://bugs.webkit.org/show_bug.cgi?id=153639
        http://trac.webkit.org/changeset/195911

2016-01-30  Darin Adler  <darin@apple.com>

        Replace CaseFoldingHash with ASCIICaseInsensitiveHash
        https://bugs.webkit.org/show_bug.cgi?id=153639

        Reviewed by Filip Pizlo.

        * wtf/text/StringHash.h: Renamed CaseFoldingHash to ASCIICaseInsensitiveHash.
        (WTF::ASCIICaseInsensitiveHash::foldCase): Use toASCIILower.
        (WTF::ASCIICaseInsensitiveHash::equal): Use equalIgnoringASCIICase.
        Also added some assertions.

        * wtf/text/StringImpl.cpp: Made the latin1CaseFoldTable private to this file,
        since it's no longer needed by CaseFoldingHash. Moved it up before its first use.
        (WTF::equalCompatibilityCaseless): Fixed typo in the name of this function.
        (WTF::equalCompatibiltyCaselessNonNull): Deleted.

        * wtf/text/StringImpl.h: Removed declarations of latin1CaseFoldTable and
        equalCompatibiltyCaselessNonNull

2016-01-29  Ada Chan  <adachan@apple.com>

        Enable VIDEO_PRESENTATION_MODE only in Debug and Release builds on Mac
        https://bugs.webkit.org/show_bug.cgi?id=153665

        Reviewed by Dan Bernstein.

        * wtf/Platform.h:
        Remove this as the flag is already defined in FeatureDefines.xcconfig files.

2016-01-30  Yusuke Suzuki  <utatane.tea@gmail.com>

        Enable SamplingProfiler on POSIX environment
        https://bugs.webkit.org/show_bug.cgi?id=153584

        Reviewed by Michael Saboff.

        Use __GLIBC__ since mcontext_t layout depends on it.

        * wtf/Platform.h:

2016-01-28  Darin Adler  <darin@apple.com>

        Remove equalIgnoringCase since all callers really wanted equalIgnoringASCIICase
        https://bugs.webkit.org/show_bug.cgi?id=153411

        Reviewed by Ryosuke Niwa.

        * wtf/text/AtomicString.h: Removed equalIgnoringCase.
        Added some overloads for equalIgnoringASCIICase and moved the function bodies to
        bottom of the file to make the function declarations easier to read and scan through.
        I plan to do this for more of the functions in this class in the future.

        * wtf/text/StringCommon.h: Added overloads for equalIgnoringASCIICase,
        equalPossiblyIgnoringASCIICase, and a helper named equalIgnoringASCIICaseCommon.
        Added an overload for equalLettersIgnoringASCIICase.

        * wtf/text/StringImpl.cpp:
        (WTF::equalIgnoringCase): Made the few remaining versions of this function private
        to this file. Once we get done moving every client that should be using ASCII case
        instead to new functions, these will almost certainly be deleted.
        (WTF::equalIgnoringASCIICaseNonNull): Tweaked implementation a tiny bit.

        * wtf/text/StringImpl.h: Sorted forward declarations at the top of the file.
        Fixed some small formatting mistakes. Removed equalIgnoringCase, but left
        equalIgnoringCaseNonNull behind for use by CaseFoldingHash until it is replaced
        with ASCIICaseFoldingHash. Improved equalIgnoringASCIICase implementation.
        Removed unneeded using for equalIgnoringASCIICase now that StringCommon.h takes
        care of it.

        * wtf/text/StringView.cpp:
        (WTF::equalIgnoringASCIICase): Deleted. We no longer pass in the length for this,
        so the arguments have changed and the implementation is also now in ASCIICommon.h
        so it's an inline in the header file.

        * wtf/text/StringView.h: Added an overload of equalIgnoringASCIICase,while
        removing another.

        * wtf/text/WTFString.h: Removed some unneeded forward delcarations. Fixed formatting
        of the type name NSString *. Improved some comments. Removed equalIgnoringCase.
        Separated declaration from implementation in a few cases to start making the
        function declarations easier to read and scan through. I plan to do more in the future.

2016-01-27  Chris Dumez  <cdumez@apple.com>

        window.atob() should ignore spaces in input
        https://bugs.webkit.org/show_bug.cgi?id=153522
        <rdar://problem/24357822>

        Reviewed by Benjamin Poulain.

        Turn Base64DecodePolicy enum into flags so that the caller can indicate
        to both validate padding AND ignore spaces.

        Also make sure that the output Vector size is properly shrunk when
        spaces are ignored.

        * wtf/text/Base64.cpp:
        (WTF::base64DecodeInternal):
        (WTF::base64Decode):
        (WTF::base64URLDecode):
        * wtf/text/Base64.h:

2016-01-27  Alexey Proskuryakov  <ap@apple.com>

        Remove ENABLE_CURRENTSRC
        https://bugs.webkit.org/show_bug.cgi?id=153545

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2016-01-26  I-Ting Liu  <iting_liu@apple.com>

        Implement wildcard matching for plug-in policy host.
        https://bugs.webkit.org/show_bug.cgi?id=153090

        Reviewed by Darin Adler.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):
        Add __bridge to allow compilation.

2016-01-26  Joseph Pecoraro  <pecoraro@apple.com>

        Generalize ResourceUsageData gathering to be used outside of ResourceUsageOverlay
        https://bugs.webkit.org/show_bug.cgi?id=153509
        <rdar://problem/24354291>

        Reviewed by Andreas Kling.

        * wtf/Platform.h:
        Rename the ENABLE flag.

2016-01-26  Yusuke Suzuki  <utatane.tea@gmail.com>

        Make HashTable iterators STL iterators compatible
        https://bugs.webkit.org/show_bug.cgi?id=153512

        Reviewed by Alex Christensen.

        While r178581 makes many hash table iterators STL compatible, still several iterators are not.
        This patch fixes that; inheriting std::iterator correctly to meet STL iterator requirements (like iterator_category etc.)
        It could recover Windows build failure.

        * wtf/HashTable.h:

2016-01-26  Anders Carlsson  <andersca@apple.com>

        BlockPtr needs boolean operators
        https://bugs.webkit.org/show_bug.cgi?id=153506

        Reviewed by Tim Horton.

        * wtf/BlockPtr.h:

2016-01-25  Filip Pizlo  <fpizlo@apple.com>

        FTLB3Output should maintain good block order like the LLVM one does
        https://bugs.webkit.org/show_bug.cgi?id=152222

        Reviewed by Geoffrey Garen.

        In the FTL we need to be able to construct a list by inserting elements before other
        specific elements. We didn't already have a scalable way to do this, so this adds such a
        data structure to WTF. This also has changes to SentinelLinkedList to make it support
        these kinds of insertions.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/OrderMaker.h: Added.
        (WTF::OrderMaker::Node::Node):
        (WTF::OrderMaker::OrderMaker):
        (WTF::OrderMaker::prepend):
        (WTF::OrderMaker::append):
        (WTF::OrderMaker::insertBefore):
        (WTF::OrderMaker::insertAfter):
        (WTF::OrderMaker::iterator::iterator):
        (WTF::OrderMaker::iterator::operator*):
        (WTF::OrderMaker::iterator::operator++):
        (WTF::OrderMaker::iterator::operator==):
        (WTF::OrderMaker::iterator::operator!=):
        (WTF::OrderMaker::begin):
        (WTF::OrderMaker::end):
        (WTF::OrderMaker::newNode):
        * wtf/SentinelLinkedList.h:
        (WTF::BasicRawSentinelNode::isOnList):
        (WTF::BasicRawSentinelNode<T>::remove):
        (WTF::BasicRawSentinelNode<T>::prepend):
        (WTF::BasicRawSentinelNode<T>::append):
        (WTF::RawNode>::SentinelLinkedList):
        (WTF::RawNode>::push):
        (WTF::RawNode>::append):
        (WTF::RawNode>::remove):
        (WTF::RawNode>::prepend):
        (WTF::RawNode>::isOnList):

2016-01-25  Alex Christensen  <achristensen@webkit.org>

        [Win] Copy forwarding headers before building a project
        https://bugs.webkit.org/show_bug.cgi?id=153434

        Reviewed by Brent Fulgham.

        * wtf/CMakeLists.txt:
        * wtf/PlatformWin.cmake:

2016-01-20  Ryosuke Niwa  <rniwa@webkit.org>

        HTMLElement::nodeName should not upper case non-ASCII characters
        https://bugs.webkit.org/show_bug.cgi?id=153231

        Reviewed by Darin Adler.

        Added convertToASCIIUppercase to AtomicString, String, and StringImpl. 

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::convertASCIICase): Generalized from convertToASCIILowercase.
        (WTF::AtomicString::convertToASCIILowercase):
        (WTF::AtomicString::convertToASCIIUppercase):
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::convertASCIICase): Generalized from convertToASCIILowercase.
        (WTF::StringImpl::convertToASCIILowercase):
        (WTF::StringImpl::convertToASCIIUppercase):
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.cpp:
        (WTF::String::convertToASCIIUppercase): Added.
        * wtf/text/WTFString.h:

2016-01-22  Chris Dumez  <cdumez@apple.com>

        Unreviewed attempt to fix the Windows build after r195452.

        * wtf/text/WTFString.h:

2016-01-22  Darin Adler  <darin@apple.com>

        Reduce use of equalIgnoringCase to just ignore ASCII case
        https://bugs.webkit.org/show_bug.cgi?id=153266

        Reviewed by Ryosuke Niwa.

        * wtf/ASCIICType.h:
        (WTF::isASCIIAlphaCaselessEqual): Loosened the assertion in this function
        so it can work with ASCII spaces, numeric digits, and some punctuation.
        Commented that we might want to change its name later.

        * wtf/Assertions.cpp:
        (WTFInitializeLogChannelStatesFromString): Use equalLettersIgnoringASCIICase.

        * wtf/text/AtomicString.h:
        (WTF::equalLettersIgnoringASCIICase): Added. Calls the version that takes a String.

        * wtf/text/StringCommon.h:
        (WTF::equalLettersIgnoringASCIICase): Added. Takes a pointer to characters.
        (WTF::equalLettersIgnoringASCIICaseCommonWithoutLength): Added.
        (WTF::equalLettersIgnoringASCIICaseCommon): Added.

        * wtf/text/StringImpl.h:
        (WTF::equalLettersIgnoringASCIICase): Added. Calls equalLettersIgnoringASCIICaseCommon.

        * wtf/text/StringView.h:
        (WTF::equalLettersIgnoringASCIICase): Added. Calls equalLettersIgnoringASCIICaseCommon.

        * wtf/text/WTFString.h: Reordered/reformatted a little.
        (WTF::equalIgnoringASCIICase): Added. Calls the version that takes a StringImpl.

2016-01-22  Csaba Osztrogonác  <ossy@webkit.org>

        Buildfix for older GCCs after r195142
        https://bugs.webkit.org/show_bug.cgi?id=153351

        Unreviewed buildfix.

        * wtf/SystemTracing.h:

2016-01-21  Filip Pizlo  <fpizlo@apple.com>

        REGRESSION(r195417): many tests crash
        https://bugs.webkit.org/show_bug.cgi?id=153316

        Reviewed by Saam Barati.

        This rolls out the StdLibExtras.h change, and simplifies RangeSet to not use binary search.
        That's fine for now, since B3 doesn't stress RangeSet enough right now.

        * wtf/RangeSet.h:
        (WTF::RangeSet::contains):
        (WTF::RangeSet::overlaps):
        (WTF::RangeSet::clear):
        (WTF::RangeSet::findRange):
        * wtf/StdLibExtras.h:
        (WTF::binarySearchImpl):
        (WTF::binarySearch):
        (WTF::tryBinarySearch):
        (WTF::approximateBinarySearch):

2016-01-21  Filip Pizlo  <fpizlo@apple.com>

        B3 should have load elimination
        https://bugs.webkit.org/show_bug.cgi?id=153288

        Reviewed by Geoffrey Garen.

        I needed a way to track sets of ranges, where there is a high likelihood that all of the
        ranges overlap. So I created RangeSet. It's a usually-sorted list of coalesced ranges.
        Practically this means that right now, FTL B3 will end up with two kinds of range sets: a set
        that just contains top and a set that contains nothing. In the future, most sets will either
        be top of empty but some of them will contain a handful of other things.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/MathExtras.h:
        (WTF::leftShiftWithSaturation):
        (WTF::nonEmptyRangesOverlap):
        (WTF::rangesOverlap):
        * wtf/RangeSet.h: Added.
        (WTF::RangeSet::RangeSet):
        (WTF::RangeSet::~RangeSet):
        (WTF::RangeSet::add):
        (WTF::RangeSet::contains):
        (WTF::RangeSet::overlaps):
        (WTF::RangeSet::clear):
        (WTF::RangeSet::dump):
        (WTF::RangeSet::dumpRaw):
        (WTF::RangeSet::compact):
        (WTF::RangeSet::overlapsNonEmpty):
        (WTF::RangeSet::subsumesNonEmpty):
        (WTF::RangeSet::findRange):
        * wtf/StdLibExtras.h:
        (WTF::binarySearchImpl):
        (WTF::binarySearch):
        (WTF::tryBinarySearch):
        (WTF::approximateBinarySearch):

2016-01-19  Ada Chan  <adachan@apple.com>

        Make it possible to enable VIDEO_PRESENTATION_MODE on other Cocoa platforms.
        https://bugs.webkit.org/show_bug.cgi?id=153218

        Reviewed by Eric Carlson.

        * wtf/Platform.h:

2016-01-19  Filip Pizlo  <fpizlo@apple.com>

        B3 should have basic path specialization
        https://bugs.webkit.org/show_bug.cgi?id=153200

        Reviewed by Benjamin Poulain.

        * wtf/GraphNodeWorklist.h:
        (WTF::GraphNodeWorklist::push):
        (WTF::GraphNodeWorklist::pushAll):
        (WTF::GraphNodeWorklist::isEmpty):
        (WTF::GraphNodeWorklist::notEmpty):

2016-01-20  Said Abou-Hallawa  <sabouhallawa@apple.com>

        Refactor AtomicStringKeyedMRUCache to be a generic LRU cache
        https://bugs.webkit.org/show_bug.cgi?id=153109

        Reviewed by Darin Adler.

        Refactor AtomicStringKeyedMRUCache, move it to WTF project and rename it
        to be TinyLRUCache. Define another template and call it TinyLRUCachePolicy.
        This one can be overridden for different keys and values. Its function is 
        creating the cached values.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/TinyLRUCache.h: Added.
        (WebCore::TinyLRUCachePolicy::isKeyNull):
        (WebCore::TinyLRUCachePolicy::createValueForNullKey):
        (WebCore::TinyLRUCachePolicy::createValueForKey):
        (WebCore::TinyLRUCache::get):

2016-01-19  Saam barati  <sbarati@apple.com>

        WTF::Bag should be non-copyable
        https://bugs.webkit.org/show_bug.cgi?id=153253

        Reviewed by Filip Pizlo.

        * wtf/Bag.h:
        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::append):
        (WTF::SegmentedVector::alloc):

2016-01-19  Enrica Casucci  <enrica@apple.com>

        Add support for DataDetectors in WK (iOS).
        https://bugs.webkit.org/show_bug.cgi?id=152989
        rdar://problem/22855960

        Reviewed by Tim Horton.

        Adding feature definition for data detection.

        * wtf/FeatureDefines.h:

2016-01-19  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r195300.
        https://bugs.webkit.org/show_bug.cgi?id=153244

        enrica wants more time to fix Windows (Requested by thorton on
        #webkit).

        Reverted changeset:

        "Add support for DataDetectors in WK (iOS)."
        https://bugs.webkit.org/show_bug.cgi?id=152989
        http://trac.webkit.org/changeset/195300

2016-01-19  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r195141.

        Seems to cause crashes on iOS9 64bit

        Reverted changeset:

        "Fragmentation-free allocator for timeless and/or coupled
        allocations."
        https://bugs.webkit.org/show_bug.cgi?id=152696
        http://trac.webkit.org/changeset/195141

2016-01-19  Enrica Casucci  <enrica@apple.com>

        Add support for DataDetectors in WK (iOS).
        https://bugs.webkit.org/show_bug.cgi?id=152989
        rdar://problem/22855960

        Reviewed by Tim Horton.

        Adding feature definition for data detection.

        * wtf/FeatureDefines.h:

2016-01-17  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 should be just as fast as FTL LLVM on Octane/crypto
        https://bugs.webkit.org/show_bug.cgi?id=153113

        Reviewed by Saam Barati.

        * wtf/IndexSparseSet.h:
        (WTF::IndexSparseSet<OverflowHandler>::IndexSparseSet):
        (WTF::IndexSparseSet<OverflowHandler>::add):
        (WTF::IndexSparseSet<OverflowHandler>::remove):
        * wtf/StringPrintStream.h:
        (WTF::StringPrintStream::length):

2016-01-17  Michael Catanzaro  <mcatanzaro@igalia.com>

        [CMake] Do not build bmalloc when USE_SYSTEM_MALLOC is ON
        https://bugs.webkit.org/show_bug.cgi?id=153190

        Reviewed by Csaba Osztrogonác.

        Build bmalloc when NOT USE_SYSTEM_MALLOC rather than when NOT WIN32.

        * wtf/CMakeLists.txt:

2016-01-15  Simon Fraser  <simon.fraser@apple.com>

        Add kdebug_trace signposts for a few WebCore operations
        https://bugs.webkit.org/show_bug.cgi?id=153136
        rdar://problem/24208487

        Reviewed by Sam Weinig.
        
        New header with the reserved WebKit component code, trace point codes, and
        a stack-based helper that traces scope entry and exit.
        
        The available range of trace point codes is arbitrarily segmented into WTF, JSC,
        WebCore, WebKit and WebKit2.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/SystemTracing.h: Added.
        (WTF::TraceScope::TraceScope):
        (WTF::TraceScope::~TraceScope):

2016-01-15  Andreas Kling  <akling@apple.com>

        Fragmentation-free allocator for timeless and/or coupled allocations.
        <https://webkit.org/b/152696>

        Reviewed by Antti Koivisto.

        Introduce BumpArena, a space-efficient memory allocator for situations where
        you feel pretty confident betting on allocation lifetimes.

        Basic design:

            - Reserves 128MB range of memory at startup.
            - Allocates 4kB-aligned blocks of 4kB from VM at a time.
            - Bump-pointer allocates out of a block until it reaches end.
            - Each allocation increments the ref-count of its block.
            - Each deallocation decrements the ref-count of its block.
            - Transparently falls back to fastMalloc()/fastFree() when needed.

        Interface:

            - BumpArena::create()

                Create your very own BumpArena!

            - BumpArena::allocate(BumpArena* arena, size_t size)

                Allocates 'size' bytes of memory from 'arena'.
                If 'arena' is null, falls back to fastMalloc().

            - BumpArena::deallocate(void* ptr)

                If 'ptr' is BumpArena allocation, decrements block ref-count.
                If 'ptr' is FastMalloc allocation, calls fastFree() on it.

            - WTF_MAKE_BUMPARENA_ALLOCATED;

                Macro that gives a class or struct custom operators new and delete
                for allocation out of BumpArena. Just like WTF_MAKE_FAST_ALLOCATED;

        Note that while the name of this patch says "fragmentation-free allocator"
        it will only be fragmentation-free when used for appropriate things.
        This is not meant to be a general-purpose allocator. Only use it for sets of
        allocations that are known to die roughly at the same time.

        BumpArena will never resume allocating from a block that has been filled,
        so it's even more important than usual that everything gets deallocated.

        BumpArena redirects allocations to FastMalloc in three cases:

            - When invoked with a null BumpArena*
            - When allocation request is larger than BumpArena's block size (4kB)
            - When BumpArena has exhausted all of its pre-reserved VM. (128MB)

        The VM allocator will eagerly return blocks of VM to the kernel by calling
        madvise(). Average time spent in madvise is around 0.007ms on my box.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BumpArena.cpp: Added.
        (WTF::BumpArena::Block::capacity):
        (WTF::BumpArena::Block::arena):
        (WTF::BumpArena::Block::payloadStart):
        (WTF::arenas):
        (WTF::BumpArena::Block::Block):
        (WTF::BumpArena::Block::~Block):
        (WTF::BumpArena::Block::ref):
        (WTF::BlockAllocator::BlockAllocator):
        (WTF::BlockAllocator::isAllocation):
        (WTF::blockAllocator):
        (WTF::BlockAllocator::allocateBlock):
        (WTF::BlockAllocator::deallocateBlock):
        (WTF::BumpArena::Block::deref):
        (WTF::BumpArena::Block::create):
        (WTF::BumpArena::Block::dump):
        (WTF::BumpArena::dump):
        (WTF::BumpArena::create):
        (WTF::BumpArena::BumpArena):
        (WTF::BumpArena::~BumpArena):
        (WTF::BumpArena::allocateSlow):
        (WTF::BumpArena::allocate):
        (WTF::BumpArena::deallocate):
        (WTF::BumpArena::Block::blockFor):
        (WTF::BumpArena::arenaFor):
        * wtf/BumpArena.h: Added.
        * wtf/CMakeLists.txt:

2016-01-15  Konstantin Tokarev  <annulen@yandex.ru>

        [EFL] WorkQueue methods should be defined inside WTF namespace.
        https://bugs.webkit.org/show_bug.cgi?id=153097

        Reviewed by Gyuyoung Kim.

        * wtf/efl/WorkQueueEfl.cpp:

2016-01-14  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r195035.

        Caused 1-3% PLT regression on iOS

        Reverted changeset:

        "Part 2/2: Stop using USE(CFNETWORK) path on iOS"
        https://bugs.webkit.org/show_bug.cgi?id=142540
        http://trac.webkit.org/changeset/195035

2016-01-14  David Kilzer  <ddkilzer@apple.com>

        Part 2/2: Stop using USE(CFNETWORK) path on iOS
        <https://webkit.org/b/142540>

        Original patch by Antti Koivisto <antti@apple.com> on 2015-03-10
        Reviewed by Chris Dumez.

        * wtf/Platform.h: Turn off USE(CFNETWORK) for PLATFORM(IOS).

2016-01-14  Per Arne Vollan  <peavo@outlook.com>

        [Win] Remove workarounds for fixed bugs in fmod and pow.
        https://bugs.webkit.org/show_bug.cgi?id=153071

        Reviewed by Brent Fulgham.

        The bugs have been fixed in the MSVC CRT, and we can remove the workarounds.

        * wtf/MathExtras.h:
        (wtf_fmod): Deleted.
        (wtf_pow): Deleted.

2016-01-13  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r194963.
        https://bugs.webkit.org/show_bug.cgi?id=153079

        This change causes ASan tests to crash and exit early
        (Requested by ryanhaddad on #webkit).

        Reverted changeset:

        "Fragmentation-free allocator for timeless and/or coupled
        allocations."
        https://bugs.webkit.org/show_bug.cgi?id=152696
        http://trac.webkit.org/changeset/194963

2016-01-13  Andreas Kling  <akling@apple.com>

        Fragmentation-free allocator for timeless and/or coupled allocations.
        <https://webkit.org/b/152696>

        Reviewed by Antti Koivisto.

        Introduce BumpArena, a space-efficient memory allocator for situations where
        you feel pretty confident betting on allocation lifetimes.

        Basic design:

            - Allocates 4kB-aligned blocks of 4kB from bmalloc at a time.
            - Bump-pointer allocates out of a block until it reaches end.
            - Each allocation increments the ref-count of its block.
            - Each deallocation decrements the ref-count of its block.

        Interface:

            - BumpArena::create()

                Create your very own BumpArena!

            - BumpArena::allocate(BumpArena* arena, size_t size)

                Allocates 'size' bytes of memory from 'arena'.
                If 'arena' is null, allocation comes out of the shared global BumpArena.

            - BumpArena::deallocate(void* ptr)

                Deallocates 'ptr', decrementing the ref-count of its block.

            - WTF_MAKE_BUMPARENA_ALLOCATED;

                Macro that gives a class or struct custom operators new and delete
                for allocation out of BumpArena. Just like WTF_MAKE_FAST_ALLOCATED;

        Note that while the name of this patch says "fragmentation-free allocator"
        it will only be fragmentation-free when used for appropriate things.
        This is not meant to be a general-purpose allocator. Only use it for sets of
        allocations that are known to die roughly at the same time.

        BumpArena will never resume allocating from a block that has been filled,
        so it's even more important than usual that everything gets deallocated.

        As noted above, calling allocate() with a null BumpArena will allocate out
        of a global shared arena. Ideally you're always allocating out of a specific,
        controlled arena, but there are situations where you may not have one.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BumpArena.cpp: Added.
        (WTF::BumpArena::Block::defaultCapacity):
        (WTF::BumpArena::Block::arena):
        (WTF::BumpArena::Block::payloadStart):
        (WTF::globalArena):
        (WTF::arenas):
        (WTF::BumpArena::Block::Block):
        (WTF::BumpArena::Block::~Block):
        (WTF::BumpArena::Block::ref):
        (WTF::BumpArena::Block::deref):
        (WTF::BumpArena::Block::create):
        (WTF::BumpArena::Block::dump):
        (WTF::BumpArena::dump):
        (WTF::BumpArena::create):
        (WTF::BumpArena::BumpArena):
        (WTF::BumpArena::~BumpArena):
        (WTF::BumpArena::allocateSlow):
        (WTF::BumpArena::allocate):
        (WTF::BumpArena::deallocate):
        (WTF::BumpArena::Block::blockFor):
        (WTF::BumpArena::arenaFor):
        * wtf/BumpArena.h: Added.
        * wtf/CMakeLists.txt:

2016-01-08  Andy Estes  <aestes@apple.com>

        [Content Filtering] Lazily load platform frameworks
        https://bugs.webkit.org/show_bug.cgi?id=152881
        rdar://problem/23270886

        Reviewed by Brady Eidson.

        * wtf/Platform.h: Moved definition of HAVE_NETWORK_EXTENSION to here from WebCore/platform/cocoa/NetworkExtensionContentFilter.h.

2016-01-12  Ryosuke Niwa  <rniwa@webkit.org>

        Add a build flag for custom element
        https://bugs.webkit.org/show_bug.cgi?id=153005

        Reviewed by Alex Christensen.

        * wtf/FeatureDefines.h:

2016-01-11  Andreas Kling  <akling@apple.com>

        NeverDestroyed should relax adoption requirements on all RefCountedBase subclasses.
        <https://webkit.org/b/152960>

        Reviewed by Antti Koivisto.

        Instead of relaxing on subclasses of RefCounted<T>, relax on subclasses of RefCountedBase.
        This allows e.g NeverDestroyed<CSSPrimitiveValue> to relax its pointee despite the class
        hierarchy starting with RefCounted<CSSValue> (not RefCounted<CSSPrimitiveValue>.)

        * wtf/NeverDestroyed.h:

2016-01-10  Saam barati  <sbarati@apple.com>

        Implement a sampling profiler
        https://bugs.webkit.org/show_bug.cgi?id=151713

        Reviewed by Filip Pizlo.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::decrementPageOccupancy):
        (WTF::MetaAllocator::isInAllocatedMemory):
        (WTF::MetaAllocator::roundUp):
        * wtf/MetaAllocator.h:
        (WTF::MetaAllocator::getLock):
        * wtf/Platform.h:

2016-01-10  Filip Pizlo  <fpizlo@apple.com>

        It should be possible to run liveness over registers without also tracking Tmps
        https://bugs.webkit.org/show_bug.cgi?id=152963

        Reviewed by Saam Barati.

        Add set methods (add/contains/remove) to BitVector, since it gets used as a set in a lot of
        places. This also makes BitVector a drop-in replacement for HashSet<unsigned> in a lot of
        places.

        Also made the iterator methods of BitVector live on BitVector directly rather than behind the
        thing returned from setBits(). This makes sense since that makes BitVector even more of a
        drop-in for HashSet. It's not harmful since we've never added any other mode of iterating a
        BitVector other than this, so it doesn't make sense to make it harder to access.

        * wtf/BitVector.h:
        (WTF::BitVector::get):
        (WTF::BitVector::contains):
        (WTF::BitVector::set):
        (WTF::BitVector::add):
        (WTF::BitVector::ensureSizeAndSet):
        (WTF::BitVector::clear):
        (WTF::BitVector::remove):
        (WTF::BitVector::hash):
        (WTF::BitVector::iterator::iterator):
        (WTF::BitVector::iterator::operator*):
        (WTF::BitVector::iterator::operator++):
        (WTF::BitVector::iterator::operator==):
        (WTF::BitVector::iterator::operator!=):
        (WTF::BitVector::begin):
        (WTF::BitVector::end):
        (WTF::BitVector::bitsInPointer):
        (WTF::BitVector::SetBitsIterable::SetBitsIterable): Deleted.
        (WTF::BitVector::SetBitsIterable::iterator::iterator): Deleted.
        (WTF::BitVector::SetBitsIterable::iterator::operator*): Deleted.
        (WTF::BitVector::SetBitsIterable::iterator::operator++): Deleted.
        (WTF::BitVector::SetBitsIterable::iterator::operator==): Deleted.
        (WTF::BitVector::SetBitsIterable::iterator::operator!=): Deleted.
        (WTF::BitVector::SetBitsIterable::begin): Deleted.
        (WTF::BitVector::SetBitsIterable::end): Deleted.
        (WTF::BitVector::setBits): Deleted.

2016-01-09  Andreas Kling  <akling@apple.com>

        Use NeverDestroyed instead of DEPRECATED_DEFINE_STATIC_LOCAL
        <https://webkit.org/b/152902>

        Reviewed by Anders Carlsson.

        Mostly mechanical conversion to NeverDestroyed throughout WTF.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::current):
        * wtf/ThreadingPthreads.cpp:
        (WTF::threadMapMutex):
        (WTF::threadMap):

2016-01-08  Anders Carlsson  <andersca@apple.com>

        Nullopt and InPlace should be structs, not enum values
        https://bugs.webkit.org/show_bug.cgi?id=152915

        Reviewed by Andreas Kling.

        Without this, 

        Optional<int> o = flag ? 1 : Nullopt;

        would cause Nullopt to be treated as an integer, causing o to be initialized to 0,
        instead of Nullopt. With this change, the above code now causes a compile error.

        Also, get rid of the CONSTEXPR macro since all compilers support constexpr properly,
        and add a WTF::makeOptional to match the current iteration of std::experimental::optional.

        * wtf/Compiler.h:
        * wtf/Forward.h:
        * wtf/Optional.h:
        (WTF::NulloptTag::NulloptTag):
        (WTF::makeOptional):
        * wtf/StdLibExtras.h:
        (std::literals::chrono_literals::operator _s):
        (std::literals::chrono_literals::operator _ms):
        (std::move):

2016-01-06  Anders Carlsson  <andersca@apple.com>

        Add a smart block pointer
        https://bugs.webkit.org/show_bug.cgi?id=152799

        Reviewed by Tim Horton.

        Introduce WTF::BlockPtr, a smart block pointer.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BlockPtr.h: Added.
        (WTF::makeBlockPtr):

2016-01-04  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Allow to save and restore session
        https://bugs.webkit.org/show_bug.cgi?id=115600

        Reviewed by Michael Catanzaro.

        Add GVariantIter specialization of GUniquePtr.

        * wtf/glib/GTypedefs.h:
        * wtf/glib/GUniquePtr.h:

2016-01-04  Tim Horton  <timothy_horton@apple.com>

        Turn on gesture events when building for Yosemite
        https://bugs.webkit.org/show_bug.cgi?id=152704
        rdar://problem/24042472

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h:

2016-01-04  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Build B3 by default on iOS ARM64
        https://bugs.webkit.org/show_bug.cgi?id=152525

        Reviewed by Filip Pizlo.

        * wtf/Platform.h:

2016-01-03  Andreas Kling  <akling@apple.com>

        Unreviewed, rolling out r194510.

        Broke 2 API tests, no time to investigate right now

        Reverted changeset:

        "StringBuilder often creates two StringImpls."
        https://bugs.webkit.org/show_bug.cgi?id=152662
        http://trac.webkit.org/changeset/194510

2016-01-03  Khem Raj  <raj.khem@gmail.com>

        WebKit fails to build with musl libc library
        https://bugs.webkit.org/show_bug.cgi?id=152625

        Reviewed by Daniel Bates.

        Disable ctype.h check for musl C library on Linux.
        Enable backtrace on Linux when using glibc.
        We don't have backtrace() implemented on non-glibc system
        C libraries on Linux e.g. musl.

        * wtf/DisallowCType.h: Check for __GLIBC__.
        * wtf/Assertions.cpp:
        (WTFGetBacktrace): Check if libc is glibc.

2016-01-03  Andreas Kling  <akling@apple.com>

        StringBuilder often creates two StringImpls.
        <https://webkit.org/b/152662>

        Reviewed by Anders Carlsson.

        If StringBuilder didn't manage to guess the exact final length of the
        string being built, it would still keep the buffer around, and the final
        build process would then return a substring into that buffer.

        This effectively yielded two StringImpls instead of one, with the substring
        retaining the longer buffer StringImpl.

        This patch improves the situation by having StringImpl crop the buffer's
        m_length field to the final built string length. That way we never have to
        return a substring.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString):
        * wtf/text/StringImpl.h:

2016-01-03  Andreas Kling  <akling@apple.com>

        Remove redundant StringImpl substring creation function.
        <https://webkit.org/b/152652>

        Reviewed by Daniel Bates.

        Remove StringImpl::createSubstringSharingImpl8() and make the only
        caller use createSubstringSharingImpl() instead.
        
        They do the same thing anyway, the only difference is that the branch
        on is8Bit() now happens in the callee instead of at the call site.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::createSubstringSharingImpl8): Deleted.

2015-12-31  Andy Estes  <aestes@apple.com>

        Replace WTF::move with WTFMove
        https://bugs.webkit.org/show_bug.cgi?id=152601

        Reviewed by Brady Eidson.

        This also removes the definition of WTF::move.

        * wtf/Deque.h:
        * wtf/HashMap.h:
        * wtf/HashSet.h:
        * wtf/HashTable.h:
        (WTF::HashTable::add):
        (WTF::KeyTraits>::HashTable):
        * wtf/Insertion.h:
        (WTF::executeInsertions):
        * wtf/IteratorAdaptors.h:
        (WTF::FilterIterator::FilterIterator):
        (WTF::TransformIterator::TransformIterator):
        (WTF::makeTransformIterator):
        * wtf/IteratorRange.h:
        (WTF::IteratorRange::IteratorRange):
        * wtf/ListHashSet.h:
        (WTF::U>::takeFirst):
        (WTF::U>::takeLast):
        * wtf/MainThread.cpp:
        (WTF::callOnMainThread):
        * wtf/MallocPtr.h:
        (WTF::MallocPtr::operator=):
        * wtf/MessageQueue.h:
        (WTF::MessageQueue<DataType>::append):
        (WTF::MessageQueue<DataType>::appendAndKill):
        (WTF::MessageQueue<DataType>::appendAndCheckEmpty):
        (WTF::MessageQueue<DataType>::prepend):
        * wtf/NakedPtr.h:
        (WTF::=):
        * wtf/OSObjectPtr.h:
        (WTF::OSObjectPtr::operator=):
        * wtf/Optional.h:
        (WTF::Optional::Optional):
        (WTF::Optional::operator=):
        * wtf/RefPtr.h:
        (WTF::=):
        * wtf/RetainPtr.h:
        (WTF::=):
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::dispatch):
        * wtf/SharedTask.h:
        (WTF::createSharedTask):
        * wtf/StdLibExtras.h:
        (WTF::move): Deleted.
        * wtf/Threading.cpp:
        (WTF::threadEntryPoint):
        (WTF::createThread):
        * wtf/Vector.h:
        (WTF::Vector::takeLast):
        * wtf/efl/DispatchQueueEfl.cpp:
        (DispatchQueue::dispatch):
        (DispatchQueue::setSocketEventHandler):
        (DispatchQueue::performTimerWork):
        (DispatchQueue::insertTimerWorkItem):
        * wtf/efl/DispatchQueueWorkItemEfl.h:
        (WorkItem::WorkItem):
        (TimerWorkItem::create):
        (TimerWorkItem::TimerWorkItem):
        * wtf/efl/WorkQueueEfl.cpp:
        (WorkQueue::registerSocketEventHandler):
        (WorkQueue::dispatch):
        (WorkQueue::dispatchAfter):
        * wtf/glib/GRefPtr.h:
        (WTF::=):
        * wtf/glib/WorkQueueGLib.cpp:
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::WorkQueue::dispatchAfter):
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):
        (WTF::AtomicString::operator=):
        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeString):
        * wtf/text/WTFString.cpp:
        (WTF::String::isolatedCopy):
        * wtf/text/WTFString.h:
        (WTF::String::String):
        (WTF::StringCapture::releaseString):
        * wtf/win/GDIObject.h:
        (WTF::=):

2015-12-31  David Kilzer  <ddkilzer@apple.com>

        Stop using USE(CFNETWORK) path on iOS
        <https://webkit.org/b/142540>

        Step 1/2: Do everything but turn off USE(CFNETWORK) internally.

        Original patch by Antti Koivisto <antti@apple.com> on 2015-03-10
        Reviewed by Daniel Bates.

        * wtf/SchedulePair.h: Update macros to match WebCore.

2015-12-31  Andy Estes  <aestes@apple.com>

        Rename WTF_MOVE to WTFMove
        https://bugs.webkit.org/show_bug.cgi?id=152601

        Reviewed by Daniel Bates.

        Our coding style guidelines say that macros that expand to function calls should be named like functions,
        so WTFMove() is a more appropriate name.

        * wtf/StdLibExtras.h:

2015-12-30  Andy Estes  <aestes@apple.com>

        Use of WTF::move prevents clang's move diagnostics from warning about several classes of mistakes
        https://bugs.webkit.org/show_bug.cgi?id=152601

        Reviewed by Brady Eidson.

        Clang has recently added warnings to catch certain classes of mistakes with the use of std::move():
        -Wpessimizing-move (warns if moving prevents copy elision), -Wredundant-move (warns if a move is redundant),
        and -Wself-move (warns if moving to self). Enabling these warnings manually (by renaming WTF::move to std::move)
        have caught numerous mistakes in our codebase (see http://trac.webkit.org/changeset/194428).

        It would be nice to be able to take advantage of these warnings, but doing so requires that we use std::move,
        not WTF::move. But since WTF::move does provide useful checks for which clang does not yet have warnings,
        we should write a best-of-both-worlds move function.

        This patch adds a function that satisfies clang's criteria for a move function (in namespace std, named "move",
        and takes a single argument) but also retains WTF::move's compile-time checks. It also adds a convenience macro
        called WTF_MOVE for use by callers.

        * wtf/StdLibExtras.h:
        (std::move):

2015-12-25  Andy Estes  <aestes@apple.com>

        Stop moving local objects in return statements
        https://bugs.webkit.org/show_bug.cgi?id=152557

        Reviewed by Brady Eidson.

        * wtf/StdLibExtras.h: Added a FIXME about how using WTF::move() prevents several Clang diagnostics from emitting useful warnings.

2015-12-22  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 should be able to run richards
        https://bugs.webkit.org/show_bug.cgi?id=152514

        Reviewed by Michael Saboff.

        Change the list dumping helpers to work with a broader set of list kinds.

        * wtf/ListDump.h:
        (WTF::ListDump::dump):
        (WTF::MapDump::dump):
        (WTF::sortedMapDump):
        (WTF::ListDumpInContext::dump):

2015-12-22  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 does not logicalNot correctly
        https://bugs.webkit.org/show_bug.cgi?id=152512

        Reviewed by Saam Barati.

        This change introduces yet another use of SharedTask in JSC. While doing this, I noticed that
        SharedTask::run() always demands that whatever arguments the callback takes, they must be
        passed as rvalue references. This was a clear misuse of perfect forwarding. This change makes
        SharedTask's approach to forwarding match what we were already doing in ScopedLambda.

        * wtf/SharedTask.h:

2015-12-20  Michael Catanzaro  <mcatanzaro@igalia.com>

        [SOUP] Performs DNS prefetch when a proxy is configured (information leak)
        https://bugs.webkit.org/show_bug.cgi?id=145542

        Reviewed by Darin Adler.

        Specialize GUniquePtr<char*>, using g_strfreev.

        * wtf/glib/GUniquePtr.h:

2015-12-19  Dan Bernstein  <mitz@apple.com>

        [Mac] WebKit contains dead source code for OS X Mavericks and earlier
        https://bugs.webkit.org/show_bug.cgi?id=152462

        Reviewed by Alexey Proskuryakov.

        * Configurations/DebugRelease.xcconfig: Removed definition of MACOSX_DEPLOYMENT_TARGET for
          OS X 10.9.

        - Simplified expressions involving __MAC_OS_X_VERSION_MIN_REQUIRED and removed code that was
          never getting compiled:

        * wtf/FeatureDefines.h:
        * wtf/MainThread.h:
        * wtf/OSObjectPtr.h:
        * wtf/Platform.h:
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        * wtf/spi/darwin/XPCSPI.h:

2015-12-17  Sukolsak Sakshuwong  <sukolsak@gmail.com>

        [INTL] Implement Collator Compare Functions
        https://bugs.webkit.org/show_bug.cgi?id=147604

        Reviewed by Darin Adler.

        * wtf/unicode/Collator.h:

2015-12-16  Andreas Kling  <akling@apple.com>

        Give kernel VM some hints about non-live memory-cached resources.
        <https://webkit.org/b/152362>

        Reviewed by Geoffrey Garen.

        Add an API to OSAllocator for hinting to the OS that a range of memory
        is not expected to be used anytime soon.

        * wtf/OSAllocator.h:
        * wtf/OSAllocatorPosix.cpp:
        (WTF::OSAllocator::hintMemoryNotNeededSoon):
        * wtf/OSAllocatorWin.cpp:
        (WTF::OSAllocator::hintMemoryNotNeededSoon):
        * wtf/Platform.h:

2015-12-16  Alex Christensen  <achristensen@webkit.org>

        Fix internal Windows build
        https://bugs.webkit.org/show_bug.cgi?id=152364
        rdar://problem/23928759

        Reviewed by Tim Horton.

        * WTF.vcxproj/WTF.proj:

2015-12-16  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        [Fetch API] Add fetch API compile time flag
        https://bugs.webkit.org/show_bug.cgi?id=152254

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2015-12-14  Yusuke Suzuki  <utatane.tea@gmail.com>

        Math.random should have an intrinsic thunk and it should be later handled as a DFG Node
        https://bugs.webkit.org/show_bug.cgi?id=152133

        Reviewed by Geoffrey Garen.

        Change 64bit random to double logic to convert efficiently.

        * wtf/WeakRandom.h:
        (WTF::WeakRandom::get):
        (WTF::WeakRandom::lowOffset):
        (WTF::WeakRandom::highOffset):

2015-12-14  Sukolsak Sakshuwong  <sukolsak@gmail.com>

        Make UCharIterator createIterator(StringView) visible to other classes
        https://bugs.webkit.org/show_bug.cgi?id=151917

        Reviewed by Darin Adler.

        Make UCharIterator createIterator(StringView) in CollatorICU.cpp visible
        to other classes so that future patches that will ucol_strcollIter
        (including Bug 147604) can use it.

        * wtf/unicode/Collator.h:
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::createIterator):

2015-12-14  David Kilzer  <ddkilzer@apple.com>

        REGRESSION (r162777): Remove Boost Software License from WTF
        <http://webkit.org/b/152243>

        Reviewed by Darin Adler.

        The source code that the Boost Software License was referring to
        was removed in r162777 by switching to std::atomic.

        * wtf/Atomics.cpp:
        * wtf/Atomics.h:
        * wtf/ThreadSafeRefCounted.h:
        - Remove Boost Software License.
        - Update Apple Inc. copyright as needed.
        - Refresh Apple Inc. license text.

2015-12-10  Joseph Pecoraro  <pecoraro@apple.com>

        Remote Inspector: Verify the identity of the other side of XPC connections
        https://bugs.webkit.org/show_bug.cgi?id=152153

        Reviewed by Brian Burg.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/cocoa/SecuritySPI.h: Renamed from Source/WebCore/platform/spi/cocoa/SecuritySPI.h.
        Push this down into WTF from WebCore and add a new method.

2015-12-08  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 should have basic GetById support
        https://bugs.webkit.org/show_bug.cgi?id=152035

        Reviewed by Saam Barati.

        When dealing with shared task lambdas, you often want to force a value to be allocated so that it
        has reference semantics, but you still want the lambda to execute OK when we pop stack. In PL we
        usually call this a "box". This is easy to do if the value that happened to be stack-allocated
        is also RefCounted, but that's rare, since stack-allocated values often have copy semantics. So,
        I've added a Box type to WTF. Behind the scenes, it allocates your object with fast malloc inside
        a ThreadSAfeRefCounted. When you pass Box<T>, you're passing the reference. This makes it a lot
        easier to work with by-reference capture.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Box.h: Added.
        (WTF::Box::Box):
        (WTF::Box::create):
        (WTF::Box::get):
        (WTF::Box::operator*):
        (WTF::Box::operator->):
        (WTF::Box::operator bool):
        (WTF::Box::Data::Data):

2015-12-09  Andreas Kling  <akling@apple.com>

        [iOS] ResourceUsageOverlay should work on iOS.
        <https://webkit.org/b/152021>

        Reviewed by Antti Koivisto.

        * wtf/Platform.h: Enable RESOURCE_USAGE_OVERLAY for all COCOA platforms.

2015-12-08  Joseph Pecoraro  <pecoraro@apple.com>

        Create a Sandbox SPI header
        https://bugs.webkit.org/show_bug.cgi?id=151981

        Reviewed by Andy Estes.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/SandboxSPI.h: Added.

2015-12-07  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 should be able to flag the tag constants as being super important so that B3 can hoist them and Air can force them into registers
        https://bugs.webkit.org/show_bug.cgi?id=151955

        Reviewed by Geoffrey Garen.

        Remove some remaining DFG-specific snippets from Dominators. This used to be a non-template
        DFG class, and some time ago I hoisted it into WTF and made it generic. But since the only
        user of the class was the DFG, this class still had a handful of DFG-specific snippets that
        didn't compile when I started using it from B3.

        Also renamed immediateDominatorOf() to idom(). This is the sort of abbreviation that we
        wouldn't ordinarily want to have in WebKit. But WebKit does allow for abbreviations that are
        "more canonical". The term "idom" is definitely more canonical than "immediateDominatorOf".

        * wtf/Dominators.h:
        (WTF::Dominators::dominates):
        (WTF::Dominators::idom):
        (WTF::Dominators::forAllStrictDominatorsOf):
        (WTF::Dominators::NaiveDominators::dominates):
        (WTF::Dominators::NaiveDominators::dump):
        (WTF::Dominators::ValidationContext::handleErrors):

2015-12-03  Anders Carlsson  <andersca@apple.com>

        Remove Objective-C GC support
        https://bugs.webkit.org/show_bug.cgi?id=151819
        rdar://problem/23746991

        Reviewed by Dan Bernstein.

        * Configurations/Base.xcconfig:
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeCurrentThreadInternal): Deleted.
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringImpl::createCFString):
        (garbageCollectionEnabled): Deleted.
        (WTF::StringWrapperCFAllocator::create): Deleted.

2015-12-02  Filip Pizlo  <fpizlo@apple.com>

        FTL B3 should support OSR exit
        https://bugs.webkit.org/show_bug.cgi?id=151710

        Reviewed by Saam Barati.

        Make sure that this has perfect forwarding.

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::append):
        (WTF::SegmentedVector::alloc):

2015-12-01  Yusuke Suzuki  <utatane.tea@gmail.com>

        [ES6] Implement LLInt/Baseline Support for ES6 Generators and enable this feature
        https://bugs.webkit.org/show_bug.cgi?id=150792

        Reviewed by Saam Barati.

        * wtf/FastBitVector.h:
        (WTF::FastBitVector::forEachSetBit):
        * wtf/FeatureDefines.h:

2015-12-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r192914.
        https://bugs.webkit.org/show_bug.cgi?id=151734

        JSC tests for this change are failing on 32 and 64-bit bots
        (Requested by ryanhaddad on #webkit).

        Reverted changeset:

        "[ES6] Implement LLInt/Baseline Support for ES6 Generators and
        enable this feature"
        https://bugs.webkit.org/show_bug.cgi?id=150792
        http://trac.webkit.org/changeset/192914

2015-12-01  Myles C. Maxfield  <mmaxfield@apple.com>

        Give String and AtomicString an existingHash() function
        https://bugs.webkit.org/show_bug.cgi?id=151717

        Reviewed by Andreas Kling.

        Test: WTF.AtomicStringExistingHash
              WTF.StringExistingHash

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::existingHash):
        * wtf/text/WTFString.h:
        (WTF::String::existingHash):

2015-12-01  Yusuke Suzuki  <utatane.tea@gmail.com>

        [ES6] Implement LLInt/Baseline Support for ES6 Generators and enable this feature
        https://bugs.webkit.org/show_bug.cgi?id=150792

        Reviewed by Saam Barati.

        * wtf/FastBitVector.h:
        (WTF::FastBitVector::forEachSetBit):
        * wtf/FeatureDefines.h:

2015-11-30  Geoffrey Garen  <ggaren@apple.com>

        Use a better RNG for Math.random()
        https://bugs.webkit.org/show_bug.cgi?id=151641

        Reviewed by Anders Carlsson.

        Use 64 bits in the random number generator instead of 32 bit. (In
        the end, JavaScript, which uses doubles, will only see 52 bits.) This
        prevents programs that multiply a random number by a large constant from
        seeing non-random "banding" caused by zeroes in the low 20 bits.

        I also took the opportunity to upgrade from GameRandom to Xorshift+,
        since Xorshift+ passes more benchmarks for randomness, and is not any
        slower or more complicated.

        Now let us all remember the fateful words of Steve Weibe, who would be
        King of Kong: "The randomness went the opposite way that it usually goes."

        * wtf/WeakRandom.h:
        (WTF::WeakRandom::WeakRandom):
        (WTF::WeakRandom::setSeed): Use standard naming.

        (WTF::WeakRandom::seed): This function is safe now. "Unsafe" in function
        names makes me itch.

        (WTF::WeakRandom::get):
        (WTF::WeakRandom::getUint32): Update to 64bit.

        (WTF::WeakRandom::advance): The Xorshift+ algorithm.

        (WTF::WeakRandom::initializeSeed): Deleted.
        (WTF::WeakRandom::seedUnsafe): Deleted.

2015-11-30  Benjamin Poulain  <bpoulain@apple.com>

        [JSC] Speed up Air Liveness Analysis on Tmps
        https://bugs.webkit.org/show_bug.cgi?id=151556

        Reviewed by Filip Pizlo.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/IndexSparseSet.h: Added.
        (WTF::IndexSparseSet<OverflowHandler>::IndexSparseSet):
        (WTF::IndexSparseSet<OverflowHandler>::add):
        (WTF::IndexSparseSet<OverflowHandler>::remove):
        (WTF::IndexSparseSet<OverflowHandler>::clear):
        (WTF::IndexSparseSet<OverflowHandler>::size):
        (WTF::IndexSparseSet<OverflowHandler>::isEmpty):
        (WTF::IndexSparseSet<OverflowHandler>::contains):

2015-11-30  Tim Horton  <timothy_horton@apple.com>

        Get rid of the !USE(ASYNC_NSTEXTINPUTCLIENT) codepath
        https://bugs.webkit.org/show_bug.cgi?id=151673

        Reviewed by Anders Carlsson.

        * wtf/Platform.h:

2015-11-30  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Remove GMainLoopSource and GThreadSafeMainLoopSource
        https://bugs.webkit.org/show_bug.cgi?id=151633

        Reviewed by Csaba Osztrogonác.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/glib/GMainLoopSource.cpp: Removed.
        * wtf/glib/GMainLoopSource.h: Removed.
        * wtf/glib/GThreadSafeMainLoopSource.cpp: Removed.
        * wtf/glib/GThreadSafeMainLoopSource.h: Removed.

2015-11-27  Csaba Osztrogonác  <ossy@webkit.org>

        Fix build warning in bignum.cc
        https://bugs.webkit.org/show_bug.cgi?id=150797

        Reviewed by Geoffrey Garen.

        * wtf/dtoa/bignum.cc:

2015-11-18  Daniel Bates  <dabates@apple.com>

        [iOS] ASSERTION FAILED: temporaryFilePath.last() == '/' in WebCore::openTemporaryFile()
        https://bugs.webkit.org/show_bug.cgi?id=151392
        <rdar://problem/23595341>

        Reviewed by Alexey Proskuryakov.

        Workaround <rdar://problem/23579077> where confstr(_CS_DARWIN_USER_TEMP_DIR, ..., ...) retrieves
        the path to the user temporary directory without a trailing slash in the iOS simulator.

        * wtf/DataLog.cpp:
        (WTF::initializeLogFileOnce):

2015-11-17  Filip Pizlo  <fpizlo@apple.com>

        CheckAdd/Mul should have commutativity optimizations in B3->Air lowering
        https://bugs.webkit.org/show_bug.cgi?id=151214

        Reviewed by Geoffrey Garen.

        Disable my failed attempts at perfect forwarding, since they were incorrect, and caused compile
        errors if you tried to pass an argument that bound to lvalue. This shouldn't affect performance of
        anything we care about, and performance tests seem to confirm that it's all good.

        * wtf/ScopedLambda.h:

2015-11-17  Filip Pizlo  <fpizlo@apple.com>

        Air should lay out code optimally
        https://bugs.webkit.org/show_bug.cgi?id=150478

        Reviewed by Geoffrey Garen.

        * wtf/GraphNodeWorklist.h:
        (WTF::GraphNodeWorklist::push):
        (WTF::GraphNodeWorklist::isEmpty):
        (WTF::GraphNodeWorklist::notEmpty):
        (WTF::GraphNodeWorklist::pop):

2015-11-11  Anders Carlsson  <andersca@apple.com>

        Enable cross-platform context menus by default
        https://bugs.webkit.org/show_bug.cgi?id=151173

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2015-11-12  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(SATURATED_LAYOUT_ARITHMETIC) guards
        https://bugs.webkit.org/show_bug.cgi?id=150972

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2015-11-11  Filip Pizlo  <fpizlo@apple.com>

        B3 should be able to compile and canonicalize Mul
        https://bugs.webkit.org/show_bug.cgi?id=151124

        Reviewed by Geoffrey Garen.

        * wtf/MathExtras.h:
        (WTF::fastLog2):

2015-11-10  Filip Pizlo  <fpizlo@apple.com>

        B3 should be able to compile a program with ChillDiv
        https://bugs.webkit.org/show_bug.cgi?id=151114

        Reviewed by Benjamin Poulain.

        Needed to beef up some compiler algorithms. All of the hardening was about making them
        work with objects that have move semantics but not copy semantics. This arises in B3
        basic block insertion sets.

        * wtf/BubbleSort.h:
        (WTF::bubbleSort):
        * wtf/Insertion.h:
        (WTF::Insertion::Insertion):
        (WTF::Insertion::index):
        (WTF::Insertion::element):
        (WTF::Insertion::operator<):
        (WTF::executeInsertions):

2015-11-10  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Use CROSS_PLATFORM_CONTEXT_MENUS
        https://bugs.webkit.org/show_bug.cgi?id=150642

        Reviewed by Martin Robinson.

        Enable CROSS_PLATFORM_CONTEXT_MENUS for GTK+ port.

        * wtf/Platform.h:

2015-11-09  Anders Carlsson  <andersca@apple.com>

        Introspect reply block types as well
        https://bugs.webkit.org/show_bug.cgi?id=151048

        Reviewed by Tim Horton.

        Fix operator-> implementation.

        * wtf/Optional.h:
        (WTF::Optional::operator->):

2015-11-05  Nikos Andronikos  <nikos.andronikos-webkit@cisra.canon.com.au>

        Add runtime and compile time flags for enabling Web Animations API and model.
        https://bugs.webkit.org/show_bug.cgi?id=150914

        Reviewed by Benjamin Poulain.

        Add ENABLE_WEB_ANIMATIONS compile time flag, runtime flag webAnimationsEnabled and Expose WK2 preference for runtime flag.

        * wtf/FeatureDefines.h:

2015-11-05  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] Avoid gint64, std::chrono::microseconds overflows in RunLoop::TimerBase
        https://bugs.webkit.org/show_bug.cgi?id=150930

        Reviewed by Carlos Garcia Campos.

        In RunLoop::TimerBase::start(), avoid overflowing the std::chrono::microseconds
        value in case the passed-in fire interval (in seconds) is too large (e.g. when
        std::chrono::microseconds::max() is used as the desired interval). This is
        achieved by using the passed-in fire interval, converted in microseconds, only
        if the value of this interval is smaller than std::chrono::microseconds::max().

        In RunLoop::TimerBase::updateReadyTime(), the zero-delay is still considered a
        short cut, but we use G_MAXINT64 in case the sum of the current time and the
        desired fire interval (now in microseconds) would overflow.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::updateReadyTime):
        (WTF::RunLoop::TimerBase::start):

2015-11-02  Filip Pizlo  <fpizlo@apple.com>

        B3/Air should use bubble sort for their insertion sets, because it's faster than std::stable_sort
        https://bugs.webkit.org/show_bug.cgi?id=150828

        Reviewed by Geoffrey Garen.

        Add a pretty good bubble sort implementation to WTF. This implementation has three
        common tricks:

        - Forward and backward scans. This reduces the severity of certain kinds of bubble sort
          pathologies.

        - Return if a scan finds the list to be sorted. This gives the algorithm one of its most
          attractive properties: it's super fast when the list is already sorted.

        - Each scan eliminates one element from future scans. This makes the algorithm no worse
          than insertion sort.

        Why do we want this? Because bubble sort is a really great stable sort for small lists,
        or large lists in which only a handful of elements are out of order. Compiler insertion
        sets tend to be one of those or somewhere in between: usually they are very small, and
        usually they are sorted. It's rare that an element will be out of order, and when it is,
        it's usually very close to where it's supposed to be.

        This is a significant speed-up for B3 compile times.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BubbleSort.h: Added.
        (WTF::bubbleSort):
        * wtf/CMakeLists.txt:

2015-11-02  Andy Estes  <aestes@apple.com>

        [Cocoa] Add tvOS and watchOS to SUPPORTED_PLATFORMS
        https://bugs.webkit.org/show_bug.cgi?id=150819

        Reviewed by Dan Bernstein.

        This tells Xcode to include these platforms in its Devices dropdown, making it possible to build in the IDE.

        * Configurations/Base.xcconfig:

2015-11-02  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Remove support for GSocket main loop sources from GMainLoopSource
        https://bugs.webkit.org/show_bug.cgi?id=150772

        Reviewed by Žan Doberšek.

        It complicated the code just to make generic what is only used in
        one place.

        * wtf/glib/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::cancel): Deleted.
        (WTF::GMainLoopSource::schedule): Deleted.
        (WTF::GMainLoopSource::scheduleTimeoutSource): Deleted.
        (WTF::GMainLoopSource::scheduleAfterDelay): Deleted.
        (WTF::GMainLoopSource::finishVoidCallback): Deleted.
        (WTF::GMainLoopSource::voidCallback): Deleted.
        (WTF::GMainLoopSource::prepareBoolCallback): Deleted.
        * wtf/glib/GMainLoopSource.h:
        (WTF::GMainLoopSource::Context::operator=): Deleted.

2015-11-02  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Remove delete on destroy GMainLoopSources
        https://bugs.webkit.org/show_bug.cgi?id=150771

        Reviewed by Žan Doberšek.

        Delete on destroy sources made the GMainLoopSource implementation
        more complex and they are currently unused.

        * wtf/glib/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::create): Deleted.
        (WTF::GMainLoopSource::GMainLoopSource): Deleted.
        (WTF::GMainLoopSource::cancel): Deleted.
        (WTF::GMainLoopSource::scheduleAndDeleteOnDestroy): Deleted.
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy): Deleted.
        (WTF::GMainLoopSource::voidCallback): Deleted.
        * wtf/glib/GMainLoopSource.h:

2015-11-01  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Use RunLoop in WorkQueue implementation
        https://bugs.webkit.org/show_bug.cgi?id=150770

        Reviewed by Darin Adler.

        Instead of using GMainLoop directly. RunLoop already abstracts the
        GMainLoop details and uses persistent sources making it more efficient.
        For the dispatchAfter implementation we use a helper context class
        and a GSource directly, since we are going to get rid of delete on
        destroy GMainLoop soon and this is the only place where we still
        use them.

        * wtf/RunLoop.h:
        (WTF::RunLoop::mainContext): Return the GMainContext.
        * wtf/WorkQueue.h:
        * wtf/glib/WorkQueueGLib.cpp:
        (WTF::WorkQueue::platformInitialize): The RunLoop needs to be
        created in the worker thread now, so we now use a mutex to wait
        until the thread has started and the RunLoop has been created.
        (WTF::WorkQueue::platformInvalidate): Stop the RunLoop and wait
        until the thread finishes.
        (WTF::WorkQueue::dispatch): Use RunLoop::dispatch().
        (WTF::DispatchAfterContext::DispatchAfterContext):
        (WTF::DispatchAfterContext::~DispatchAfterContext):
        (WTF::DispatchAfterContext::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2015-11-01  Yusuke Suzuki  <utatane.tea@gmail.com>

        [ES6] Support Generator Syntax
        https://bugs.webkit.org/show_bug.cgi?id=150769

        Reviewed by Geoffrey Garen.

        Added ENABLE_ES6_GENERATORS flag.

        * wtf/FeatureDefines.h:

2015-11-01  Darin Adler  <darin@apple.com>

        ASCIICType refinements
        https://bugs.webkit.org/show_bug.cgi?id=150787

        Reviewed by Geoffrey Garen.

        Refined ASCIICType.h by using narrower types. The most valuable part of this
        is the part where the result of toASCIIHexValue is uint8_t instead of int;
        that's slightly better for RGB values that the compiler needs to know fit
        into a byte (coming in some Color work I plan to do soon).

        * wtf/ASCIICType.h: Used CharacterType instead of CharType throughout, and
        also sorted the using declarations at the bottom of the header.
        (WTF::isASCII): Use the name "character" instead of "c".
        (WTF::isASCIIAlpha): Ditto. Also use isASCIILower and toASCIILowerUnchecked
        instead of writing it out.
        (WTF::isASCIIDigit): Ditto.
        (WTF::isASCIIAlphanumeric): Ditto.
        (WTF::isASCIIHexDigit): Ditto. Also use toASCIILowerUnchecked instead of
        writing it out.
        (WTF::isASCIILower): Ditto.
        (WTF::isASCIIBinaryDigit): Ditto. Also removed unneeded parentheses to match
        the style of the rest of the file.
        (WTF::isASCIIOctalDigit): Ditto.
        (WTF::isASCIIPrintable): Ditto.
        (WTF::isASCIISpace): Ditto.
        (WTF::isASCIIUpper): Ditto.
        (WTF::toASCIILower): Ditto. Also use isASCIIUpper instead of writing it out.
        (WTF::toASCIILowerUnchecked): Tweaked comment.
        (WTF::toASCIIUpper): Ditto. Also use isASCIILower instead of writing it out.
        (WTF::toASCIIHexValue): Ditto. Also change return type from int to uint8_t.
        Also broke a single assertion with && into two separate assertions and got
        rid of unnnecessary masking with 0xF0 after shifting left. Also renamed
        arguments for the two argument value so they are more sensible.
        (WTF::lowerNibbleToASCIIHexDigit): Changed argument type to uint8_t, since
        this function does not take a character. Also called it "value" instead of "c".
        Also slightly tweaked how the expression is written.
        (WTF::upperNibbleToASCIIHexDigit): Ditto. Using the more specific type also
        got rid of the need to explicitly mask in this function.
        (WTF::isASCIIAlphaCaselessEqual): Renamed the arguments for greater clarity.
        With the new clearer argument names, the comment was superfluous.

2015-11-01  Filip Pizlo  <fpizlo@apple.com>

        Dominators should be factored out of the DFG
        https://bugs.webkit.org/show_bug.cgi?id=150764

        Reviewed by Geoffrey Garen.

        This takes what used to be DFGDominators.h/DFGDominators.cpp and turns it into a generic
        algorithm that can take any abstract graph. The idea is that you create Dominators<CFG> and
        pass it a CFG object, which defines the types of graph nodes and methods for getting
        successors, predecessors, etc. The DFG now defines a class called CFG, which is a wrapper for
        DFG::Graph that conforms to the thing that wtf/Dominators.h expects.

        When doing things to graphs, it's common to refer to the things in the graph as "nodes".
        Because I intend to reuse the CFG abstraction with many graph algorithms, that abstraction uses
        the term "node" to refer to a DFG basic block. But in Dominators, the method and variable names
        still use "block". This is because although Dominators are applicable to any kind of directed
        graph, it's super unlikely that we will ever use them for anything but compilers. Indeed, the
        only reason why I'm factoring them out of the DFG is so that I can use them with B3 and Air.

        This has the nice side effect that a user of WTF::Dominators<JSC::DFG::CFG> will see familiar
        terminology like "blocksStrictlyDominatedBy(...)" instead of "nodesStrictlyDominatedBy(...)",
        which would be super confusing.

        Overall, wtf/Dominators.h is a combination of what used to be in DFGDominators.h,
        DFGDominators.cpp, DFGNaiveDominators.h, and DFGNaiveDominators.cpp. I only changed code when I
        had to in order to make it generic.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Dominators.h: Added.
        (WTF::Dominators::Dominators):
        (WTF::Dominators::compute):
        (WTF::Dominators::strictlyDominates):
        (WTF::Dominators::dominates):
        (WTF::Dominators::immediateDominatorOf):
        (WTF::Dominators::forAllStrictDominatorsOf):
        (WTF::Dominators::forAllDominatorsOf):
        (WTF::Dominators::forAllBlocksStrictlyDominatedBy):
        (WTF::Dominators::forAllBlocksDominatedBy):
        (WTF::Dominators::strictDominatorsOf):
        (WTF::Dominators::dominatorsOf):
        (WTF::Dominators::blocksStrictlyDominatedBy):
        (WTF::Dominators::blocksDominatedBy):
        (WTF::Dominators::forAllBlocksInDominanceFrontierOf):
        (WTF::Dominators::dominanceFrontierOf):
        (WTF::Dominators::forAllBlocksInIteratedDominanceFrontierOf):
        (WTF::Dominators::forAllBlocksInPrunedIteratedDominanceFrontierOf):
        (WTF::Dominators::iteratedDominanceFrontierOf):
        (WTF::Dominators::dump):
        (WTF::Dominators::LengauerTarjan::LengauerTarjan):
        (WTF::Dominators::LengauerTarjan::compute):
        (WTF::Dominators::LengauerTarjan::immediateDominator):
        (WTF::Dominators::LengauerTarjan::computeDepthFirstPreNumbering):
        (WTF::Dominators::LengauerTarjan::computeSemiDominatorsAndImplicitImmediateDominators):
        (WTF::Dominators::LengauerTarjan::computeExplicitImmediateDominators):
        (WTF::Dominators::LengauerTarjan::link):
        (WTF::Dominators::LengauerTarjan::eval):
        (WTF::Dominators::LengauerTarjan::compress):
        (WTF::Dominators::LengauerTarjan::BlockData::BlockData):
        (WTF::Dominators::NaiveDominators::NaiveDominators):
        (WTF::Dominators::NaiveDominators::dominates):
        (WTF::Dominators::NaiveDominators::dump):
        (WTF::Dominators::NaiveDominators::pruneDominators):
        (WTF::Dominators::ValidationContext::ValidationContext):
        (WTF::Dominators::ValidationContext::reportError):
        (WTF::Dominators::ValidationContext::handleErrors):
        (WTF::Dominators::naiveDominates):
        (WTF::Dominators::forAllBlocksInDominanceFrontierOfImpl):
        (WTF::Dominators::forAllBlocksInIteratedDominanceFrontierOfImpl):
        (WTF::Dominators::BlockData::BlockData):

2015-11-01  Darin Adler  <darin@apple.com>

        Remove some dead and unneeded code (ScrollbarThemeSafari, RenderThemeSafari, OPENCL, a little color space logic)
        https://bugs.webkit.org/show_bug.cgi?id=150783

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h: Removed the OPENCL feature, no longer supported.

2015-10-31  Filip Pizlo  <fpizlo@apple.com>

        B3::reduceStrength's DCE should be more agro and less wrong
        https://bugs.webkit.org/show_bug.cgi?id=150748

        Reviewed by Geoffrey Garen.

        * wtf/GraphNodeWorklist.h:
        (WTF::GraphNodeWorklist::saw): This method is super useful.

2015-11-01  Philip Chimento  <philip.chimento@gmail.com>

        [GTK] Fix combinations of PLATFORM(GTK) and OS(DARWIN)
        https://bugs.webkit.org/show_bug.cgi?id=144560

        Reviewed by Darin Adler.

        * wtf/Platform.h: Don't USE(ACCELERATE) on PLATFORM(GTK).
        * wtf/WorkQueue.h: Change order of OS(DARWIN) and PLATFORM(GTK)
        checks so that GTK facilities are used even when building the
        GTK platform on Darwin.

2015-11-01  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Use RunLoop::Timer in main thread shared timer GTK+ implementation
        https://bugs.webkit.org/show_bug.cgi?id=150754

        Reviewed by Darin Adler.

        Add API to set the priority of a RunLoop::Timer for GLib.

        * wtf/RunLoop.h:
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::setPriority):

2015-10-31  Andreas Kling  <akling@apple.com>

        Add a debug overlay with information about web process resource usage.
        <https://webkit.org/b/150599>

        Reviewed by Darin Adler.

        Add ENABLE(RESOURCE_USAGE_OVERLAY) flag, enabled on Mac by default.

        * wtf/Platform.h:

2015-10-30  Chris Dumez  <cdumez@apple.com>

        Regression(r191673): Crash in RunLoopTimer::schedule()
        https://bugs.webkit.org/show_bug.cgi?id=150723

        Reviewed by Anders Carlsson.

        We were crashing in RunLoopTimer::schedule() when iterating over the
        SchedulePairHashSet. The reason is that we were passing this
        SchedulePairHashSet from the main thread to a background thread, which
        was not safe because the SchedulePair objects inside the HashSet were
        not ThreadSafeRefCounted. This patch makes them ThreadSafeRefCounted.

        * wtf/SchedulePair.h:

2015-10-30  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Move the socket polling off the WorkQueue
        https://bugs.webkit.org/show_bug.cgi?id=150593

        Reviewed by Anders Carlsson.

        It doesn't really belong to the WorkQueue, it's only used by the
        WebKit2 connection, so it can be moved there.

        * wtf/WorkQueue.h:
        * wtf/glib/WorkQueueGLib.cpp:
        (WTF::WorkQueue::registerSocketEventHandler): Deleted.
        (WTF::WorkQueue::unregisterSocketEventHandler): Deleted.

2015-10-29  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Use a persistent main loop source in RunLoop glib implementation
        https://bugs.webkit.org/show_bug.cgi?id=150590

        Reviewed by Žan Doberšek.

        It's more efficient than creating and destroying a new source for
        every dispatch and it simplifies the code.

        * wtf/RunLoop.h:
        * wtf/glib/MainThreadGLib.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread): Use
        RunLoop::dispatch() instead of GMainLoopSource::scheduleAndDeleteOnDestroy().
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::RunLoop): Create and setup the persistent source.
        (WTF::RunLoop::~RunLoop): Destroy the persistent source.
        (WTF::RunLoop::stop): Stop the persistent source before stopping
        the main loop.
        (WTF::RunLoop::wakeUp): Make the persistent source active. We
        no longer need to explicitly wakeup the context.
        (WTF::RunLoop::TimerBase::TimerBase): Create and setup the
        persistent source.
        (WTF::RunLoop::TimerBase::~TimerBase): Destroy the persistent source.
        (WTF::RunLoop::TimerBase::updateReadyTime): Set the ready time
        according to the fire interval.
        (WTF::RunLoop::TimerBase::start): Make the persistent source active.
        (WTF::RunLoop::TimerBase::stop): Stop the persistent source.
        (WTF::RunLoop::TimerBase::isActive): Return whether the
        persistent source is active.

2015-10-30  Philippe Normand  <pnormand@igalia.com>

        [GTK][Mac] fix WTF build
        https://bugs.webkit.org/show_bug.cgi?id=150502

        Reviewed by Alex Christensen.

        * wtf/CMakeLists.txt: Add CommonCryptoSPI.h in the headers.

2015-10-29  Alex Christensen  <achristensen@webkit.org>

        Fix Mac CMake build
        https://bugs.webkit.org/show_bug.cgi?id=150686

        Reviewed by Filip Pizlo.

        * wtf/CMakeLists.txt:
        * wtf/Platform.h:
        * wtf/PlatformMac.cmake:

2015-10-29  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r191728.
        https://bugs.webkit.org/show_bug.cgi?id=150668

        Caused a lot of timeouts in layout tests (Requested by KaL on
        #webkit).

        Reverted changeset:

        "[GTK] Use a persistent main loop source in RunLoop glib
        implementation"
        https://bugs.webkit.org/show_bug.cgi?id=150590
        http://trac.webkit.org/changeset/191728

2015-10-29  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Use a persistent main loop source in RunLoop glib implementation
        https://bugs.webkit.org/show_bug.cgi?id=150590

        Reviewed by Žan Doberšek.

        It's more efficient than creating and destroying a new source for
        every dispatch and it simplifies the code.

        * wtf/RunLoop.h:
        * wtf/glib/MainThreadGLib.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread): Use
        RunLoop::dispatch() instead of GMainLoopSource::scheduleAndDeleteOnDestroy().
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::RunLoop): Create and setup the persistent source.
        (WTF::RunLoop::~RunLoop): Destroy the persistent source.
        (WTF::RunLoop::stop): Stop the persistent source before stopping
        the main loop.
        (WTF::RunLoop::wakeUp): Make the persistent source active. We
        no longer need to explicitly wakeup the context.
        (WTF::RunLoop::TimerBase::TimerBase): Create and setup the
        persistent source.
        (WTF::RunLoop::TimerBase::~TimerBase): Destroy the persistent source.
        (WTF::RunLoop::TimerBase::updateReadyTime): Set the ready time
        according to the fire interval.
        (WTF::RunLoop::TimerBase::start): Make the persistent source active.
        (WTF::RunLoop::TimerBase::stop): Stop the persistent source.
        (WTF::RunLoop::TimerBase::isActive): Return whether the
        persistent source is active.

2015-10-28  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, make sure B3 is disabled on iOS for now.

        * wtf/Platform.h:

2015-10-28  Filip Pizlo  <fpizlo@apple.com>

        Create a super rough prototype of B3
        https://bugs.webkit.org/show_bug.cgi?id=150280

        Reviewed by Benjamin Poulain.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/HashSet.h:
        (WTF::copyToVector):
        (WTF::=):
        * wtf/ListDump.h:
        (WTF::PointerListDump::PointerListDump):
        (WTF::PointerListDump::dump):
        (WTF::MapDump::MapDump):
        (WTF::listDump):
        (WTF::pointerListDump):
        (WTF::sortedListDump):
        * wtf/MathExtras.h:
        (WTF::leftShiftWithSaturation):
        (WTF::rangesOverlap):
        * wtf/Platform.h:
        * wtf/ScopedLambda.h: Added.
        (WTF::scopedLambda):
        * wtf/SharedTask.h:
        (WTF::createSharedTask):

2015-10-28  Alberto Garcia  <berto@igalia.com>

        [SOUP] Cannot build the network process in glibc-based BSD systems
        https://bugs.webkit.org/show_bug.cgi?id=150618

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: Don't enable HAVE_STAT_BIRTHTIME if the system
        is using glibc.

2015-10-21  Filip Pizlo  <fpizlo@apple.com>

        Factor out the graph node worklists from DFG into WTF
        https://bugs.webkit.org/show_bug.cgi?id=150411

        Reviewed by Geoffrey Garen.

        The new GraphNodeWorklist.h file is basically just the functionality from the old
        DFGBlockWorklist.h, but templatized to work for any graph node type and any kind of graph
        node set.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/GraphNodeWorklist.h: Added.
        (WTF::GraphNodeWorklist::push):
        (WTF::GraphNodeWorklist::notEmpty):
        (WTF::GraphNodeWorklist::pop):
        (WTF::GraphNodeWith::GraphNodeWith):
        (WTF::GraphNodeWith::operator bool):
        (WTF::ExtendedGraphNodeWorklist::ExtendedGraphNodeWorklist):
        (WTF::ExtendedGraphNodeWorklist::forcePush):
        (WTF::ExtendedGraphNodeWorklist::push):
        (WTF::ExtendedGraphNodeWorklist::notEmpty):
        (WTF::ExtendedGraphNodeWorklist::pop):
        (WTF::GraphNodeWithOrder::GraphNodeWithOrder):
        (WTF::GraphNodeWithOrder::operator bool):
        (WTF::PostOrderGraphNodeWorklist::PostOrderGraphNodeWorklist):
        (WTF::PostOrderGraphNodeWorklist::~PostOrderGraphNodeWorklist):
        (WTF::PostOrderGraphNodeWorklist::pushPre):
        (WTF::PostOrderGraphNodeWorklist::pushPost):
        (WTF::PostOrderGraphNodeWorklist::push):
        (WTF::PostOrderGraphNodeWorklist::notEmpty):
        (WTF::PostOrderGraphNodeWorklist::pop):
        * wtf/HashTable.h:
        (WTF::HashTableAddResult::HashTableAddResult):
        (WTF::HashTableAddResult::operator bool):

2015-10-20  Tim Horton  <timothy_horton@apple.com>

        Try to fix the build by disabling MAC_GESTURE_EVENTS on 10.9 and 10.10

        * wtf/FeatureDefines.h:

2015-10-20  Yoav Weiss  <yoav@yoav.ws>

        Rename the PICTURE_SIZES flag to CURRENTSRC
        https://bugs.webkit.org/show_bug.cgi?id=150275

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h:

2015-10-19  Beth Dakin  <bdakin@apple.com>

        Build fix.

        * wtf/FeatureDefines.h:

2015-10-19  Tim Horton  <timothy_horton@apple.com>

        Add magnify and rotate gesture event support for Mac
        https://bugs.webkit.org/show_bug.cgi?id=150179
        <rdar://problem/8036240>

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:
        New feature flag.

2015-10-17  Mark Lam  <mark.lam@apple.com>

        Add CPU(X86) to the supported MASM_PROBE CPUs. This was accidentally left out in r191197.

        Not reviewed.

        * wtf/Platform.h:

2015-10-16  Mark Lam  <mark.lam@apple.com>

        Always enable MASM_PROBE for debug builds.
        https://bugs.webkit.org/show_bug.cgi?id=150190

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:

2015-10-14  Andreas Kling  <akling@apple.com>

        REGRESSION(r190882): Concatenating a character array and an empty string is broken.
        <https://webkit.org/b/150135>

        Reviewed by Geoffrey Garen.

        StringAdapter templates for raw character arrays were always using 1 as the array length
        in toString().

        * wtf/text/StringConcatenate.h:

2015-10-14  Per Arne Vollan  <peavo@outlook.com>

        [Win64] Enable concurrent JIT.
        https://bugs.webkit.org/show_bug.cgi?id=150098

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2015-10-13  Simon Fraser  <simon.fraser@apple.com>

        Add helper funtion for checking pointer equivalency and use it
        https://bugs.webkit.org/show_bug.cgi?id=150022

        Reviewed by Darin Adler.
        
        Add PointerComparison.h which contains the templated pointer comparison
        function.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PointerComparison.h: Added.
        (WTF::arePointingToEqualData):

2015-10-12  Andreas Kling  <akling@apple.com>

        "A + B" with strings shouldn't copy if A or B is empty.
        <https://webkit.org/b/150034>

        Reviewed by Anders Carlsson.

        Add a fast path to WTF's operator+ magic for concatenation of two strings where
        one of them is empty. In that case, try to avoid allocation altogether by returning
        the non-empty string.

        Spotted this while analyzing memory peaks during page load; it turns out we were
        duplicating whole text resources (JS, CSS) at the end of decoding, below
        TextResourceDecoder::decodeAndFlush(). That function effectively does:

            return decode() + flush();

        Very often, flush() returns an empty string, so due to the naive operator+,
        we'd allocate a new StringImpl of length (decode().length() + flush().length())
        and copy the return value from decode() into it. So silly!

        Had to make the tryMakeString() machinery use String as a return type instead of
        RefPtr<StringImpl> to make all the right overloads gel. StringTypeAdapter templates
        are now required to provide a toString() function.

        * wtf/text/StringConcatenate.h:
        (WTF::StringTypeAdapter<char>::toString):
        (WTF::StringTypeAdapter<UChar>::toString):
        (WTF::StringTypeAdapter<Vector<char>>::toString):
        (WTF::StringTypeAdapter<String>::toString):
        (WTF::tryMakeString):
        (WTF::makeString):
        * wtf/text/StringOperators.h:
        (WTF::StringAppend::operator String):
        * wtf/text/StringView.h:
        (WTF::StringTypeAdapter<StringView>::toString):

2015-10-12  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix style in the hopes that it fixes Windows.

        * wtf/ParallelHelperPool.cpp:
        (WTF::ParallelHelperClient::~ParallelHelperClient):
        (WTF::ParallelHelperClient::setTask):
        (WTF::ParallelHelperClient::doSomeHelping):
        (WTF::ParallelHelperClient::runTaskInParallel):
        (WTF::ParallelHelperClient::finish):
        (WTF::ParallelHelperClient::claimTask):
        (WTF::ParallelHelperClient::runTask):
        (WTF::ParallelHelperPool::doSomeHelping):
        (WTF::ParallelHelperPool::helperThreadBody):
        * wtf/ParallelHelperPool.h:
        (WTF::ParallelHelperClient::setFunction):
        (WTF::ParallelHelperClient::runFunctionInParallel):
        (WTF::ParallelHelperClient::pool):

2015-10-10  Filip Pizlo  <fpizlo@apple.com>

        FTL should generate code to call slow paths lazily
        https://bugs.webkit.org/show_bug.cgi?id=149936

        Reviewed by Saam Barati.

        Enables SharedTask to handle any function type, not just void().

        It's probably better to use SharedTask instead of std::function in performance-sensitive
        code. std::function uses the system malloc and has copy semantics. SharedTask uses FastMalloc
        and has aliasing semantics. So, you can just trust that it will have sensible performance
        characteristics.

        * wtf/ParallelHelperPool.cpp:
        (WTF::ParallelHelperClient::~ParallelHelperClient):
        (WTF::ParallelHelperClient::setTask):
        (WTF::ParallelHelperClient::doSomeHelping):
        (WTF::ParallelHelperClient::runTaskInParallel):
        (WTF::ParallelHelperClient::finish):
        (WTF::ParallelHelperClient::claimTask):
        (WTF::ParallelHelperClient::runTask):
        (WTF::ParallelHelperPool::doSomeHelping):
        (WTF::ParallelHelperPool::helperThreadBody):
        * wtf/ParallelHelperPool.h:
        (WTF::ParallelHelperClient::setFunction):
        (WTF::ParallelHelperClient::runFunctionInParallel):
        (WTF::ParallelHelperClient::pool):
        * wtf/SharedTask.h:
        (WTF::createSharedTask):
        (WTF::SharedTask::SharedTask): Deleted.
        (WTF::SharedTask::~SharedTask): Deleted.
        (WTF::SharedTaskFunctor::SharedTaskFunctor): Deleted.

2015-10-10  Dan Bernstein  <mitz@apple.com>

        [iOS] Remove unnecessary iOS version checks
        https://bugs.webkit.org/show_bug.cgi?id=150002

        Reviewed by Alexey Proskuryakov.

        * wtf/Platform.h:

2015-10-10  Dan Bernstein  <mitz@apple.com>

        [iOS] Remove project support for iOS 8
        https://bugs.webkit.org/show_bug.cgi?id=149993

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        * Configurations/WTF.xcconfig:
        * Configurations/mbmalloc.xcconfig:

2015-10-08  Joseph Pecoraro  <pecoraro@apple.com>

        Clean up Marked classes
        https://bugs.webkit.org/show_bug.cgi?id=149853

        Reviewed by Darin Adler.

        * wtf/PageBlock.h:
        Remove duplicate using statement.

2015-10-08  Joseph Pecoraro  <pecoraro@apple.com>

        Remove PageReservation.h clang fixme that has been fixed for a while
        https://bugs.webkit.org/show_bug.cgi?id=149908

        Reviewed by Csaba Osztrogonác.

        * wtf/PageReservation.h:
        (WTF::PageReservation::operator bool): Deleted.

2015-10-06  Daniel Bates  <dbates@webkit.org>

        Enable XSLT when building WebKit for iOS using the public iOS SDK
        https://bugs.webkit.org/show_bug.cgi?id=149827

        Reviewed by Alexey Proskuryakov.

        * wtf/FeatureDefines.h:

2015-10-04  Filip Pizlo  <fpizlo@apple.com>

        Inline cache repatching should be throttled if it happens a lot
        https://bugs.webkit.org/show_bug.cgi?id=149796
        rdar://problem/22674436

        Reviewed by Saam Barati.

        Add some helpers for saturated math.

        * wtf/MathExtras.h:
        (WTF::incrementWithSaturation):
        (WTF::leftShiftWithSaturation):

2015-10-01  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed CMake build fixes.

        * wtf/CMakeLists.txt: Correct build flags to match
        the original project files.

2015-09-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r190324.
        https://bugs.webkit.org/show_bug.cgi?id=149671

        Caused flaky crashes, rdar://problem/22916304 (Requested by ap
        on #webkit).

        Reverted changeset:

        "ParallelHelperPool::runFunctionInParallel() shouldn't
        allocate, and ParallelHelperPool.h shouldn't be included
        everywhere"
        https://bugs.webkit.org/show_bug.cgi?id=149635
        http://trac.webkit.org/changeset/190324

2015-09-29  Filip Pizlo  <fpizlo@apple.com>

        ParallelHelperPool::runFunctionInParallel() shouldn't allocate, and ParallelHelperPool.h shouldn't be included everywhere
        https://bugs.webkit.org/show_bug.cgi?id=149635

        Reviewed by Saam Barati.

        * wtf/ParallelHelperPool.h:
        (WTF::ParallelHelperClient::runFunctionInParallel): Stack-allocate the task instead of heap-allocating it.

2015-09-29  Filip Pizlo  <fpizlo@apple.com>

        GC copy phase spans too many files
        https://bugs.webkit.org/show_bug.cgi?id=149586

        Reviewed by Andreas Kling.

        Extract the load balancing algorithm used by the GC's copy phase into a reusable template.
        The GC copy phase now uses this.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/ParallelVectorIterator.h: Added.
        (WTF::ParallelVectorIterator::ParallelVectorIterator):
        (WTF::ParallelVectorIterator::iterate):

2015-09-26  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix Windows build by adding WTF_EXPORT_PRIVATE in various places.

        * wtf/ParallelHelperPool.h:
        (WTF::ParallelHelperClient::setFunction):
        (WTF::ParallelHelperPool::numberOfThreads):

2015-09-24  Filip Pizlo  <fpizlo@apple.com>

        VMs should share GC threads
        https://bugs.webkit.org/show_bug.cgi?id=149433
        rdar://problem/12859344

        Reviewed by Geoffrey Garen.

        This adds two major things to WTF: WeakRandom and ParallelHelperPool. WeakRandom was
        already in JSC; we're just hoisting it into WTF. It's just a weak random number generator
        that's suitable for places where you need just a tiny bit of randomness.

        ParallelHelperPool is a new API that simplifies data-parallel algorithms like the JSC GC.
        In a data-parallel algorithm, we want to run one task on as many cores as possible and let
        the task worry about which subset of the input data to work on. In some cases, the
        algorithm will not need to do any load balancing - and if load balancing is required, it's
        up to the user. This is appropriate in contexts where the load balancing needs to be
        custom-tuned for performance, like the GC's marking phase.

        This new API has three concepts: task, client, and pool. A task is a reference counted
        object with a run() method, which may be run in parallel. It is usually used to wrap a
        functor. A pool is a pool of threads that can run things. A client is a placeholder for a
        task. A client can have zero or one tasks. A client must be registered with a pool. When a
        client has a task, the pool's threads may choose to run it. If a thread starts running a
        task, it will run it to completion. When the task returns on any thread, the client takes
        it to mean that the task should be removed. That means that any currently running instances
        of the task will finish but no new threads will attempt to run the task. You can easily ask
        a client to wait until a task finishes. You can also easily ask a client to run a task on
        the current thread in addition to possibly some helper threads from the pool.

        For some data-parallel algorithms, programming with ParallelHelperPool is as easy as:

        client.runFunctionInParallel(
            [=] () {
                do things;
            });

        Note that you cannot tell ahead of time how many threads will join to help the task.
        Threads may become available after the task has already started running. Those threads may
        join after the other threads have already started. It's not advisable to make algorithmic
        decisions based on client.numberOfActiveThreads(), since that number may change. Usually
        the best way to use ParallelHelperPool is with an algorithm that has its own custom
        worklist. An example of a very simple custom worklist is the one in the JSC GC's copying
        phase - it's just a Vector and an index that indicates the next set of elements to process.

        This new API was initially designed to simplify how GCThread works, by replacing Phase with
        a callback that contains the phase's workload. I then realized that with a few tweaks, I
        could make this somewhat general enough that it might become interesting outside GC. I also
        realized that I could use this to enable thread sharing. So, although the API is kinda
        quirky, it's grounded in the reality of how the JSC GC does parallelism.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/ParallelHelperPool.cpp: Added.
        (WTF::ParallelHelperClient::ParallelHelperClient):
        (WTF::ParallelHelperClient::~ParallelHelperClient):
        (WTF::ParallelHelperClient::setTask):
        (WTF::ParallelHelperClient::finish):
        (WTF::ParallelHelperClient::doSomeHelping):
        (WTF::ParallelHelperClient::runTaskInParallel):
        (WTF::ParallelHelperClient::claimTask):
        (WTF::ParallelHelperClient::runTask):
        (WTF::ParallelHelperPool::ParallelHelperPool):
        (WTF::ParallelHelperPool::~ParallelHelperPool):
        (WTF::ParallelHelperPool::addThreads):
        (WTF::ParallelHelperPool::ensureThreads):
        (WTF::ParallelHelperPool::doSomeHelping):
        (WTF::ParallelHelperPool::didMakeWorkAvailable):
        (WTF::ParallelHelperPool::helperThreadBody):
        (WTF::ParallelHelperPool::hasClientWithTask):
        (WTF::ParallelHelperPool::getClientWithTask):
        (WTF::ParallelHelperPool::waitForClientWithTask):
        * wtf/ParallelHelperPool.h: Added.
        (WTF::ParallelHelperClient::setFunction):
        (WTF::ParallelHelperClient::runFunctionInParallel):
        (WTF::ParallelHelperClient::pool):
        (WTF::ParallelHelperClient::numberOfActiveThreads):
        (WTF::ParallelHelperPool::numberOfThreads):
        * wtf/SharedTask.h: Added.
        (WTF::SharedTask::SharedTask):
        (WTF::SharedTask::~SharedTask):
        (WTF::SharedTaskFunctor::SharedTaskFunctor):
        (WTF::createSharedTask):
        * wtf/WeakRandom.h: Copied from Source/JavaScriptCore/runtime/WeakRandom.h.
        (WTF::WeakRandom::WeakRandom):
        (WTF::WeakRandom::initializeSeed):
        (WTF::WeakRandom::seedUnsafe):
        (WTF::WeakRandom::getUint32):
        (WTF::WeakRandom::advance):
        (JSC::WeakRandom::WeakRandom): Deleted.
        (JSC::WeakRandom::seedUnsafe): Deleted.
        (JSC::WeakRandom::getUint32): Deleted.
        (JSC::WeakRandom::advance): Deleted.
        (JSC::WeakRandom::initializeSeed): Deleted.

2015-09-25  Alex Christensen  <achristensen@webkit.org>

        Clean up CMake build on Mac
        https://bugs.webkit.org/show_bug.cgi?id=149573

        Reviewed by Chris Dumez.

        * wtf/PlatformMac.cmake:

2015-09-25  Alex Christensen  <achristensen@webkit.org>

        [Win] Switch to CMake
        https://bugs.webkit.org/show_bug.cgi?id=148111

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.proj:

2015-09-25  Joseph Pecoraro  <pecoraro@apple.com>

        Simplify Stopwatch::elapsedTime
        https://bugs.webkit.org/show_bug.cgi?id=149538

        Reviewed by Darin Adler.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::elapsedTime):
        Simplify by not starting/stopping but just computing without updating members.

2015-09-25  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed build fix.

        * wtf/FeatureDefines.h: Don't turn STREAMS_API on by default
        on Windows.

2015-09-24  Ryosuke Niwa  <rniwa@webkit.org>

        Ran sort-Xcode-project-file.

        * WTF.xcodeproj/project.pbxproj:

2015-09-23  Andy Estes  <aestes@apple.com>

        Disable QuickLook on watchOS
        https://bugs.webkit.org/show_bug.cgi?id=149508
        <rdar://problem/22517968>

        Reviewed by Dan Bernstein.

        * wtf/Platform.h:

2015-09-22  Andy Estes  <aestes@apple.com>

        Disable QuickLook on tvOS
        https://bugs.webkit.org/show_bug.cgi?id=149492
        <rdar://problem/22741586>

        Reviewed by Dan Bernstein.

        * wtf/Platform.h: Stopped enabling QuickLook on tvOS.

2015-09-22  Filip Pizlo  <fpizlo@apple.com>

        Get rid of ENABLE(PARALLEL_GC)
        https://bugs.webkit.org/show_bug.cgi?id=149436

        Reviewed by Mark Lam.

        We always enable parallel GC everywhere but Windows, and it doesn't look like it was disabled
        there for any good reason. So, get rid of the flag.

        * wtf/MainThread.cpp:
        (WTF::canAccessThreadLocalDataForThread):
        (WTF::initializeGCThreads):
        (WTF::registerGCThread):
        (WTF::isMainThreadOrGCThread):
        * wtf/Platform.h:

2015-09-22  Filip Pizlo  <fpizlo@apple.com>

        Get rid of ENABLE(GGC)
        https://bugs.webkit.org/show_bug.cgi?id=149472

        Reviewed by Mark Hahnenberg and Mark Lam.

        * wtf/Platform.h:

2015-09-21  Filip Pizlo  <fpizlo@apple.com>

        Always use the compiler's CAS implementation and get rid of ENABLE(COMPARE_AND_SWAP)
        https://bugs.webkit.org/show_bug.cgi?id=149438

        Reviewed by Mark Lam.

        * wtf/Atomics.h: Make weakCompareAndSwap() just forward to the system CAS via WTF::Atomic.
        (WTF::weakCompareAndSwap):
        (WTF::weakCompareAndSwapUIntPtr): Deleted.
        (WTF::weakCompareAndSwapSize): Deleted.
        * wtf/Bitmap.h: Small changes to use the new API.
        (WTF::WordType>::concurrentTestAndSet):
        * wtf/Platform.h: Remove ENABLE(COMPARE_AND_SWAP)

2015-09-21  Csaba Osztrogonác  <ossy@webkit.org>

        Remove old GCC cruft from wtf/StdLibExtras.h
        https://bugs.webkit.org/show_bug.cgi?id=149401

        Reviewed by Alex Christensen.

        * wtf/StdLibExtras.h:

2015-09-21  Andy Estes  <aestes@apple.com>

        Disable Parental Controls on the Apple TV platform
        https://bugs.webkit.org/show_bug.cgi?id=149421

        Reviewed by Darin Adler.

        * wtf/Platform.h:

2015-09-21  Filip Pizlo  <fpizlo@apple.com>

        JSC should infer property types
        https://bugs.webkit.org/show_bug.cgi?id=148610

        Reviewed by Geoffrey Garen.

        * wtf/HashTable.h:
        (WTF::HashTableAddResult::HashTableAddResult): Make it possible to say "HashMap::AddResult result" without assigning anything to it yet.
        * wtf/PrintStream.h:
        (WTF::printInternal): Beef up printing of some common WTF types, in particular RefPtr<UniquedStringImpl>.

2015-09-20  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        Remove XHR_TIMEOUT compilation guard
        https://bugs.webkit.org/show_bug.cgi?id=149260

        Reviewed by Benjamin Poulain.

        * wtf/FeatureDefines.h:

2015-09-17  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, revert unintended change.

        * benchmarks/LockSpeedTest.cpp:
        (main):

2015-09-15  Ryosuke Niwa  <rniwa@webkit.org>

        Add ShadowRoot interface and Element.prototype.attachShadow
        https://bugs.webkit.org/show_bug.cgi?id=149187

        Reviewed by Antti Koivisto.

        * wtf/FeatureDefines.h:


2015-09-11  Keith Miller  <keith_miller@apple.com>

        cryptographicallyRandomValuesFromOS should use CCRandomCopyBytes when available.
        https://bugs.webkit.org/show_bug.cgi?id=148439

        Reviewed by Alexey Proskuryakov.

        Recently, we switched to using arc4random_buf on Darwin but further research indicates that
        arc4random_buf has the same behavior we had before and thus we were just pushing the problem
        further down the stack. CCRandomCopyBytes, however, appears to be more advanced and has much
        better error handling than we had before.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/OSRandomSource.cpp:
        (WTF::cryptographicallyRandomValuesFromOS):
        * wtf/spi/darwin/CommonCryptoSPI.h: Added.

2015-09-08  Filip Pizlo  <fpizlo@apple.com>

        There should be one stub hanging off an inline cache that contains code for all of the cases, rather than forming a linked list consisting of one stub per case
        https://bugs.webkit.org/show_bug.cgi?id=148717

        Reviewed by Michael Saboff.

        Beef up dumping a bit.

        * wtf/PrintStream.h:
        (WTF::pointerDump):
        (WTF::printInternal):

2015-09-08  Mark Lam  <mark.lam@apple.com>

        GC stack scan should include ABI red zone.
        https://bugs.webkit.org/show_bug.cgi?id=148976

        Reviewed by Geoffrey Garen and Benjamin Poulain.

        * wtf/StackBounds.h:
        (WTF::StackBounds::origin):
        (WTF::StackBounds::end):
        (WTF::StackBounds::size):

2015-09-04  Csaba Osztrogonác  <ossy@webkit.org>

        Enable reference qualified functions for GCC
        https://bugs.webkit.org/show_bug.cgi?id=148526

        Reviewed by Darin Adler.

        * wtf/Compiler.h:

2015-09-04  Csaba Osztrogonác  <ossy@webkit.org>

        webkit-unassigned@lists.webkit.org
        https://bugs.webkit.org/show_bug.cgi?id=148525

        Reviewed by Darin Adler.

        * wtf/Compiler.h:

2015-08-29  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Improve a ParkingLot::parkConditionally() comment for a libstdc++ workaround
        https://bugs.webkit.org/show_bug.cgi?id=148571

        Reviewed by Filip Pizlo.

        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally): Adjust the comment about the workaround for
        the libstdc++ std::condition_variable implementation, linking to the WebKit bug
        that dissected the problem and the GCC bug that originally reported the problem.

2015-08-28  Anders Carlsson  <andersca@apple.com>

        Remove the #if PLATFORM(MAC) in DeprecatedSymbolsUsedBySafari.mm so we'll actually build it on iOS.

        Reviewed by Dan Bernstein.

        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:

2015-08-27  Anders Carlsson  <andersca@apple.com>

        Define legacy main thread calling functions for iOS as well
        https://bugs.webkit.org/show_bug.cgi?id=148530

        Reviewed by Tim Horton.

        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:

2015-08-26  Anders Carlsson  <andersca@apple.com>

        Fix build.

        * wtf/WorkQueue.cpp:

2015-08-26  Anders Carlsson  <andersca@apple.com>

        Add and implement WorkQueue::concurrentApply
        https://bugs.webkit.org/show_bug.cgi?id=148488

        Reviewed by Geoffrey Garen.

        WorkQueue::concurrentApply is modeled after dispatch_apply, and on Cocoa it uses dispatch_apply directly.
        For other ports there's a generic concurrentApply implemented using our threading primitives.
        
        * wtf/NeverDestroyed.h:
        (WTF::LazyNeverDestroyed::operator->):
        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::concurrentApply):
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::concurrentApply):

2015-08-25  Filip Pizlo  <fpizlo@apple.com>

        Node::origin should be able to tell you if it's OK to exit
        https://bugs.webkit.org/show_bug.cgi?id=145204

        Reviewed by Geoffrey Garen.

        * wtf/Insertion.h:
        (WTF::executeInsertions): Add a useful assertion. This come into play because JSC will use UINT_MAX as "invalid index", and that ought to trigger this assertion.

2015-08-25  Csaba Osztrogonác  <ossy@webkit.org>

        Require GCC version at least 4.9
        https://bugs.webkit.org/show_bug.cgi?id=148430

        Reviewed by Darin Adler.

        * wtf/Compiler.h:

2015-08-22  Anders Carlsson  <andersca@apple.com>

        std::once_flag needs to be static.

        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        (WTF::MainThreadFunctionTracker::singleton):

2015-08-21  Anders Carlsson  <andersca@apple.com>

        Build fix.

        * wtf/MainThread.h:

2015-08-21  Anders Carlsson  <andersca@apple.com>

        Address review feedback from Darin.

        * wtf/MainThread.h:
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        (WTF::callOnMainThread):
        (WTF::cancelCallOnMainThread):

2015-08-21  Anders Carlsson  <andersca@apple.com>

        Deprecate the old school callOnMainThread/cancelCallOnMainThread functions
        https://bugs.webkit.org/show_bug.cgi?id=148327

        Reviewed by Sam Weinig.

        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        Change the function queue to be a queue of std::function<void ()> and get rid of dead code.

        * wtf/MainThread.h:
        Conditionalize callOnMainThread and cancelCallOnMainThread because Safari on Mavericks still expects to them to be
        declared in MainThread.h under 10.9.

        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        Add a MainThreadFunctionTracker singleton that keeps track of scheduled functions so we can ensure that they're not
        called if they're cancelled.

        (WTF::MainThreadFunctionTracker::singleton):
        Return the singleton.

        (WTF::MainThreadFunctionTracker::callOnMainThread):
        Add the function/context pair to our map and schedule the function to be run on the main thread.
        If the function has been removed, don't call it.

        (WTF::MainThreadFunctionTracker::cancelCallOnMainThread):
        Remove all entries with the given function/context pair.

        (WTF::MainThreadFunctionTracker::addFunction):
        Add the function/context pair to the map and return the unique identifier.

        (WTF::MainThreadFunctionTracker::removeIdentifier):
        Look up the identifier and remove it if it still exists. If it exists we know that it hasn't been canceled and that we can call it.

        (WTF::MainThreadFunctionTracker::removeFunctions):
        Remove all function identifiers matched by the function/context pair.

        (WTF::callOnMainThread):
        Implement using MainThreadFunctionTracker.

        (WTF::cancelCallOnMainThread):
        Implement using MainThreadFunctionTracker.

2015-08-21  Anders Carlsson  <andersca@apple.com>

        Get rid of uses of the old callOnMainThread function that takes a function ptr + context
        https://bugs.webkit.org/show_bug.cgi?id=148324

        Reviewed by Tim Horton.

        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringWrapperCFAllocator::deallocate):
        (WTF::StringWrapperCFAllocator::deallocateOnMainThread): Deleted.

2015-08-20  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r188717 and r188719.
        https://bugs.webkit.org/show_bug.cgi?id=148272

        Broke the Mavericks build (Requested by andersca on #webkit).

        Reverted changesets:

        "Merge Lock and LockBase"
        https://bugs.webkit.org/show_bug.cgi?id=148266
        http://trac.webkit.org/changeset/188717

        "Merge ConditionBase and Condition"
        https://bugs.webkit.org/show_bug.cgi?id=148270
        http://trac.webkit.org/changeset/188719

2015-08-20  Anders Carlsson  <andersca@apple.com>

        Merge ConditionBase and Condition
        https://bugs.webkit.org/show_bug.cgi?id=148270

        Reviewed by Filip Pizlo.

        * wtf/Condition.h:
        Direct initialize m_hasWaiters so Condition gets a constexpr constructor.

        * wtf/Lock.h:
        Remove a now outdated comment.

2015-08-20  Anders Carlsson  <andersca@apple.com>

        Merge Lock and LockBase
        https://bugs.webkit.org/show_bug.cgi?id=148266

        Reviewed by Filip Pizlo.

        * wtf/Atomics.h:
        (WTF::Atomic::Atomic):
        Add a default constructor as well as a constexpr constructor that takes a value.

        * wtf/Lock.cpp:
        (WTF::Lock::lockSlow):
        (WTF::Lock::unlockSlow):
        Rename LockBase to Lock.

        * wtf/Lock.h:
        Rename LockBase to Lock and direct-initialize Atomic to 0. Since the Atomic constructor is constexpr,
        Lock also gets a constexpr constructor. Change the LockBase -> StaticLock typedef and add a fixme.

        * wtf/WordLock.h:
        Direct initialize m_word to 0.

2015-08-19  Filip Pizlo  <fpizlo@apple.com>

        Remove WTF::SpinLock
        https://bugs.webkit.org/show_bug.cgi?id=148208

        Reviewed by Geoffrey Garen.

        Remove the SpinLock.h file and remove references to the SpinLock class. Put the old SpinLock
        algorithm in LockSpeedTest.cpp - which isn't compiled as part of a WTF or WebKit build - just
        so we can still benchmark our locking algorithms against a spinlock baseline.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * benchmarks/LockSpeedTest.cpp:
        * wtf/CMakeLists.txt:
        * wtf/Lock.h:
        * wtf/SpinLock.h: Removed.
        * wtf/WordLock.h:

2015-08-19  Alex Christensen  <achristensen@webkit.org>

        CMake Windows build should not include files directly from other Source directories
        https://bugs.webkit.org/show_bug.cgi?id=148198

        Reviewed by Brent Fulgham.

        * wtf/CMakeLists.txt:
        * wtf/PlatformWin.cmake:

2015-08-18  Filip Pizlo  <fpizlo@apple.com>

        Replace all uses of std::mutex/std::condition_variable with WTF::Lock/WTF::Condition
        https://bugs.webkit.org/show_bug.cgi?id=148140

        Reviewed by Geoffrey Garen.

        Also beef up Condition by giving it a StaticCondition variant.

        * wtf/Condition.h:
        (WTF::ConditionBase::notifyAll):
        (WTF::ConditionBase::waitForSecondsImpl):
        (WTF::ConditionBase::absoluteFromRelative):
        (WTF::Condition::Condition):
        (WTF::Condition::notifyAll): Deleted.
        (WTF::Condition::waitForSecondsImpl): Deleted.
        (WTF::Condition::absoluteFromRelative): Deleted.
        * wtf/CryptographicallyRandomNumber.cpp:
        * wtf/HashTable.cpp:
        (WTF::HashTableStats::recordCollisionAtCount):
        (WTF::HashTableStats::dumpStats):
        (WTF::hashTableStatsMutex): Deleted.
        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):
        (WTF::KeyTraits>::invalidateIterators):
        (WTF::addIterator):
        (WTF::removeIterator):
        * wtf/Lock.h:
        * wtf/MainThread.cpp:
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        (WTF::cancelCallOnMainThread):
        (WTF::mainThreadFunctionQueueMutex): Deleted.
        * wtf/StackStats.cpp:
        (WTF::StackStats::PerThreadStats::PerThreadStats):
        (WTF::StackStats::CheckPoint::CheckPoint):
        (WTF::StackStats::CheckPoint::~CheckPoint):
        (WTF::StackStats::probe):
        (WTF::StackStats::LayoutCheckPoint::LayoutCheckPoint):
        (WTF::StackStats::LayoutCheckPoint::~LayoutCheckPoint):
        (WTF::StackStats::initialize): Deleted.
        * wtf/StackStats.h:
        (WTF::StackStats::LayoutCheckPoint::LayoutCheckPoint):
        (WTF::StackStats::probe):
        (WTF::StackStats::initialize): Deleted.
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        (WTF::callOnMainThread):
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):
        (WTF::atomicallyInitializedStaticMutex): Deleted.
        * wtf/text/StringView.cpp:
        (WTF::StringView::UnderlyingString::UnderlyingString):
        (WTF::underlyingStrings):
        (WTF::StringView::invalidate):
        (WTF::StringView::adoptUnderlyingString):
        (WTF::StringView::setUnderlyingString):
        (WTF::underlyingStringsMutex): Deleted.
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::Collator::Collator):
        (WTF::Collator::~Collator):
        (WTF::cachedCollatorMutex): Deleted.

2015-08-18  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] GMainLoopSource should receive the std::function<> objects through rvalue references
        https://bugs.webkit.org/show_bug.cgi?id=147981

        Reviewed by Carlos Garcia Campos.

        Scheduling methods on GMainLoopSource and GThreadSafeMainLoopSource should
        have the std::function<> objects passed through rvalue references, and should
        move the passed-in objects forward when required.

        * wtf/glib/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::GMainLoopSource::scheduleAndDeleteOnDestroy):
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy):
        * wtf/glib/GMainLoopSource.h:
        * wtf/glib/GThreadSafeMainLoopSource.cpp:
        (WTF::GThreadSafeMainLoopSource::schedule):
        (WTF::GThreadSafeMainLoopSource::scheduleAfterDelay):
        * wtf/glib/GThreadSafeMainLoopSource.h:

2015-08-18  Eric Carlson  <eric.carlson@apple.com>

        Remove "platform text track menu"
        https://bugs.webkit.org/show_bug.cgi?id=148139

        Reviewed by Jer Noble.

        * wtf/Platform.h: Remove PLATFORM_TEXT_TRACK_MENU.

2015-08-18  Filip Pizlo  <fpizlo@apple.com>

        WTF::Condition should have a fast path for notifyOne/notifyAll that avoids calling unparkOne/unparkAll
        https://bugs.webkit.org/show_bug.cgi?id=148090

        Reviewed by Geoffrey Garen.

        This change makes notifyOne()/notifyAll() blazing fast when nobody is waiting, by using the
        various hooks that ParkingLot gives us to maintain a m_hasWaiters variable. When it's false, it
        means that any unpark operation would simply return immediately.

        This is a 45% speed-up for the 1-producer/1-consumer scenario with a 100-element queue when you
        use the notifyOne()-per-enqueue style. What's cool about this change is that you can now safely
        call notifyOne() (or notifyAll()) out of paranoia, just in case someone might be waiting. It's
        free to do so if nobody is waiting!

        * wtf/Condition.h:
        (WTF::Condition::Condition):
        (WTF::Condition::waitUntil):
        (WTF::Condition::notifyOne):
        (WTF::Condition::notifyAll):

2015-08-17  Filip Pizlo  <fpizlo@apple.com>

        Replace all remaining uses of WTF::Mutex with WTF::Lock
        https://bugs.webkit.org/show_bug.cgi?id=148089

        Reviewed by Geoffrey Garen.

        This also beefs up and rationalizes the Condition API, so that it can deal with units of time
        other than just steady_clock. This makes it easier to port ThreadCondition and
        std::condition_variable code over to Condition. This patch does not take a position on what
        kind of time is best; from reading a lot of the uses in WebCore, it seems like our use of
        double to measure seconds is often nicer than the many different classes in std::chrono.

        Also added a Condition speed test, to make sure that all of this is a good idea. And indeed it
        is. The 1-producer/1-consumer scenario with a 100-element queue runs 36x faster using
        Lock/Condition than Mutex/ThreadCondition when you use the notifyOne()-per-enqueue style. It
        runs 58x faster with Lock/Condition when you use the notifyAll()-at-boundary style. Note that
        I have a bug open for making the notifyOne()-per-enqueue style even faster:
        https://bugs.webkit.org/show_bug.cgi?id=148090. Also, the 10-consumer/10-producer scenario with
        a 100-element queue runs 20x faster with Lock/Condition for notifyOne()-per-enqueue and 30x
        faster with notifyAll()-at-boundary. The only way to tweak the test to get
        Mutex/ThreadCondition to win is to have one producer, one consumer, a 1-element queue, and use
        the notifyOne()-per-enqueue style. In that case, one of the two threads is going to be waiting
        most of the time and the test basically measures wake-up latency and nothing else. Because
        Condition::wait() does a little bit more work than ThreadCondition::wait(),
        Mutex/ThreadCondition end up running 3% faster in this test case. But if you vary any of the
        parameters of the test, Mutex/ThreadCondition ends up losing - all it takes is more threads or
        a queue size of 5 or more. To my knowledge, we never do producer/consumer with a queue bounded
        to one element precisely because that approach is the least efficient regardless of locking
        algorithm. For example, neither WTF::MessageQueue nor DFG::Worklist have any bounds on their
        queue size. So, it seems that replacing all uses of system mutexes and condition variables with
        our own thing is a great idea.

        * benchmarks/LockSpeedTest.cpp:
        * benchmarks/ConditionSpeedTest.cpp: Added.
        * wtf/Condition.h:
        (WTF::Condition::Condition):
        (WTF::Condition::waitUntil):
        (WTF::Condition::waitFor):
        (WTF::Condition::wait):
        (WTF::Condition::waitUntilWallClockSeconds):
        (WTF::Condition::waitUntilMonotonicClockSeconds):
        (WTF::Condition::notifyOne):
        (WTF::Condition::notifyAll):
        (WTF::Condition::waitForSecondsImpl):
        (WTF::Condition::waitForImpl):
        (WTF::Condition::absoluteFromRelative):
        * wtf/MessageQueue.h:
        (WTF::MessageQueue::infiniteTime):
        (WTF::MessageQueue<DataType>::append):
        (WTF::MessageQueue<DataType>::appendAndKill):
        (WTF::MessageQueue<DataType>::appendAndCheckEmpty):
        (WTF::MessageQueue<DataType>::prepend):
        (WTF::MessageQueue<DataType>::removeIf):
        (WTF::MessageQueue<DataType>::isEmpty):
        (WTF::MessageQueue<DataType>::kill):
        (WTF::MessageQueue<DataType>::killed):
        * wtf/ParallelJobsGeneric.cpp:
        (WTF::ParallelEnvironment::ThreadPrivate::execute):
        (WTF::ParallelEnvironment::ThreadPrivate::waitForFinish):
        (WTF::ParallelEnvironment::ThreadPrivate::workerThread):
        * wtf/ParallelJobsGeneric.h:
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally):
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::compareAndPark):
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        * wtf/ThreadingWin.cpp:
        (WTF::initializeThreading):
        * wtf/dtoa.cpp:
        (WTF::pow5mult):
        * wtf/dtoa.h:

2015-08-17  Alex Christensen  <achristensen@webkit.org>

        Build Debug Suffix on Windows with CMake
        https://bugs.webkit.org/show_bug.cgi?id=148083

        Reviewed by Brent Fulgham.

        * wtf/PlatformWin.cmake:
        Add DEBUG_SUFFIX

2015-08-17  Myles C. Maxfield  <mmaxfield@apple.com>

        Implement IntegerHasher
        https://bugs.webkit.org/show_bug.cgi?id=147866

        Reviewed by Darin Adler and Anders Carlsson.

        Rename StringHasher.h to Hasher.h, and include an IntegerHasher class.

        * WTF.vcxproj/WTF.vcxproj: Update to target new file.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.
        * wtf/Hasher.h: Renamed from Source/WTF/wtf/StringHasher.h.
        * wtf/text/CString.cpp: Use new #include
        * wtf/text/StringHash.h: Ditto.
        * wtf/text/StringImpl.h: Ditto.
        * wtf/unicode/UTF8.cpp: Ditto.

2015-08-17  Alex Christensen  <achristensen@webkit.org>

        Move some commands from ./CMakeLists.txt to Source/cmake
        https://bugs.webkit.org/show_bug.cgi?id=148003

        Reviewed by Brent Fulgham.

        * CMakeLists.txt:
        Added commands needed to build WTF by itself.

2015-08-14  Filip Pizlo  <fpizlo@apple.com>

        Use WTF::Lock and WTF::Condition instead of WTF::Mutex, WTF::ThreadCondition, std::mutex, and std::condition_variable
        https://bugs.webkit.org/show_bug.cgi?id=147999

        Reviewed by Geoffrey Garen.

        Relanding after fixing a deadlock on Linux.

        * wtf/Condition.h: "using WTF::Condition".
        * wtf/Lock.h:
        (WTF::LockBase::lock):
        (WTF::LockBase::tryLock): Add tryLock() because it turns out that we use it sometimes.
        (WTF::LockBase::try_lock): unique_lock needs this.
        (WTF::LockBase::unlock):
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally): Work around a Linux C++ bug where wait_until with time_point::max() immediately returns and doesn't flash the lock.

2015-08-14  Keith Miller  <keith_miller@apple.com>

        cryptographicallyRandomValuesFromOS should use arc4random_buf on Darwin.
        https://bugs.webkit.org/show_bug.cgi?id=148038

        Reviewed by Geoffrey Garen.

        Currently, we open a file descriptor to /dev/urandom, which can sometimes
        fail to open. Using arc4random_buf instead should get around this issue.

        * wtf/OSRandomSource.cpp:
        (WTF::cryptographicallyRandomValuesFromOS):

2015-08-14  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r188444.
        https://bugs.webkit.org/show_bug.cgi?id=148029

        Broke GTK and EFL (see bug #148027) (Requested by philn on
        #webkit).

        Reverted changeset:

        "Use WTF::Lock and WTF::Condition instead of WTF::Mutex,
        WTF::ThreadCondition, std::mutex, and std::condition_variable"
        https://bugs.webkit.org/show_bug.cgi?id=147999
        http://trac.webkit.org/changeset/188444

2015-08-13  Filip Pizlo  <fpizlo@apple.com>

        Use WTF::Lock and WTF::Condition instead of WTF::Mutex, WTF::ThreadCondition, std::mutex, and std::condition_variable
        https://bugs.webkit.org/show_bug.cgi?id=147999

        Reviewed by Geoffrey Garen.

        * wtf/Condition.h: "using WTF::Condition".
        * wtf/Lock.h:
        (WTF::LockBase::lock):
        (WTF::LockBase::tryLock): Add tryLock() because it turns out that we use it sometimes.
        (WTF::LockBase::try_lock): unique_lock needs this.
        (WTF::LockBase::unlock):

2015-08-13  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r188428.
        https://bugs.webkit.org/show_bug.cgi?id=148015

        broke cmake build (Requested by alexchristensen on #webkit).

        Reverted changeset:

        "Move some commands from ./CMakeLists.txt to Source/cmake"
        https://bugs.webkit.org/show_bug.cgi?id=148003
        http://trac.webkit.org/changeset/188428

2015-08-13  Alex Christensen  <achristensen@webkit.org>

        Move some commands from ./CMakeLists.txt to Source/cmake
        https://bugs.webkit.org/show_bug.cgi?id=148003

        Reviewed by Brent Fulgham.

        * CMakeLists.txt:
        Added commands needed to build WTF by itself.

2015-08-13  Mark Lam  <mark.lam@apple.com>

        WorkQueue::dispatchAfter() on Windows fires early.
        https://bugs.webkit.org/show_bug.cgi?id=147992

        Reviewed by Brent Fulgham.

        The Windows implementation of WorkQueue::dispatchAfter() uses CreateTimerQueueTimer().
        Unfortunately, CreateTimerQueueTimer() is sloppy and can fire early.  We need to compensate
        for this slop to ensure that the specified duration does expire before the callback function
        is called.  Otherwise, the JSC watchdog (which depends on this) can fail randomly.

        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::dispatchAfter):

2015-08-13  Filip Pizlo  <fpizlo@apple.com>

        WTF should have a compact Condition object to use with Lock
        https://bugs.webkit.org/show_bug.cgi?id=147986

        Reviewed by Geoffrey Garen.

        Adds a condition variable implementation based on ParkingLot, called simply WTF::Condition.
        It can be used with WTF::Lock or actually any lock implementation. It should even work with
        WTF::SpinLock, WTF::Mutex, or std::mutex. Best of all, Condition only requires one byte.

        ParkingLot almost contained all of the functionality needed to implemenet wait/notify. We
        could have implemented Condition using a 32-bit (or even 64-bit) version that protects
        against a notify that happens just before we park. But, this changes the ParkingLot API to
        give us the ability to run some code between when ParkingLot enqueues the current thread
        and when it actually sleeps. This callback is called with no locks held, so it can call
        unlock() on any kind of lock, so long as that lock's unlock() method doesn't recurse into
        ParkingLot::parkConditionally(). That seems unlikely; unlock() is more likely to call
        ParkingLot::unparkOne() or unparkAll(). WTF::Lock will never call parkConditionally()
        inside unlock(), so WTF::Lock is definitely appropriate for use with Condition.

        Condition supports most of the API that std::condition_variable supports. It does some
        things to try to reduce footgun potential. The preferred timeout form is waitUntil() which
        takes an absolute time from the steady_clock. The only relative timeout form also takes a
        predicate callback, so it's impossible to write the subtly incorrect
        "while (...) wait_for(...)" idiom.

        This patch doesn't actually introduce any uses of WTF::Condition other than the unit tests.
        I'll start switching code over to using WTF::Condition in another patch.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Condition.h: Added.
        (WTF::Condition::Condition):
        (WTF::Condition::waitUntil):
        (WTF::Condition::waitFor):
        (WTF::Condition::wait):
        (WTF::Condition::notifyOne):
        (WTF::Condition::notifyAll):
        * wtf/Lock.cpp:
        (WTF::LockBase::unlockSlow): Make this useful assertion be a release assertion. It catches cases where you unlock the lock even though you don't hold it.
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally): Add the beforeSleep() callback.
        (WTF::ParkingLot::unparkOne):
        * wtf/ParkingLot.h:
        (WTF::ParkingLot::compareAndPark):

2015-08-12  Anders Carlsson  <andersca@apple.com>

        Use WTF::Optional in WindowFeatures
        https://bugs.webkit.org/show_bug.cgi?id=147956

        Reviewed by Sam Weinig.

        Add new operators to WTF::Optional to make it more like std::optional.

        * wtf/Optional.h:
        (WTF::Optional::operator->):
        (WTF::Optional::operator*):

2015-08-12  Filip Pizlo  <fpizlo@apple.com>

        WTF::Lock should not suffer from the thundering herd
        https://bugs.webkit.org/show_bug.cgi?id=147947

        Reviewed by Geoffrey Garen.

        This changes Lock::unlockSlow() to use unparkOne() instead of unparkAll(). The problem with
        doing this is that it's not obvious after calling unparkOne() if there are any other threads
        that are still parked on the lock's queue. If we assume that there are and leave the
        hasParkedBit set, then future calls to unlock() will take the slow path. We don't want that
        if there aren't actually any threads parked. On the other hand, if we assume that there
        aren't any threads parked and clear the hasParkedBit, then if there actually were some
        threads parked, then they may never be awoken since future calls to unlock() won't take slow
        path and so won't call unparkOne(). In other words, we need a way to be very precise about
        when we clear the hasParkedBit and we need to do it in a race-free way: it can't be the case
        that we clear the bit just as some thread gets parked on the queue.

        A similar problem arises in futexes, and one of the solutions is to have a thread that
        acquires a lock after parking sets the hasParkedBit. This is what Rusty Russel's usersem
        does. It's a subtle algorithm. Also, it means that if a thread barges in before the unparked
        thread runs, then that barging thread will not know that there are threads parked. This
        could increase the severity of barging.

        Since ParkingLot is a user-level API, we don't have to worry about the kernel-user security
        issues and so we can expose callbacks while ParkingLot is holding its internal locks. This
        change does exactly that for unparkOne(). The new variant of unparkOne() will call a user
        function while the queue from which we are unparking is locked. The callback is told basic
        stats about the queue: did we unpark a thread this time, and could there be more threads to
        unpark in the future. The callback runs while it's impossible for the queue state to change,
        since the ParkingLot's internal locks for the queue is held. This means that
        Lock::unlockSlow() can either clear, or leave, the hasParkedBit while releasing the lock
        inside the callback from unparkOne(). This takes care of the thundering herd problem while
        also reducing the greed that arises from barging threads.

        This required some careful reworking of the ParkingLot algorithm. The first thing I noticed
        was that the ThreadData::shouldPark flag was useless, since it's set exactly when
        ThreadData::address is non-null. Then I had to make sure that dequeue() could lazily create
        both hashtables and buckets, since the "callback is called while queue is locked" invariant
        requires that we didn't exit early due to the hashtable or bucket not being present. Note
        that all of this is done in such a way that the old unparkOne() and unparkAll() don't have
        to create any buckets, though they now may create the hashtable. We don't care as much about
        the hashtable being created by unpark since it's just such an unlikely scenario and it would
        only happen once.

        This change reduces the kernel CPU usage of WTF::Lock for the long critical section test by
        about 8x and makes it always perform as well as WTF::WordLock and WTF::Mutex for that
        benchmark.

        * benchmarks/LockSpeedTest.cpp:
        * wtf/Lock.cpp:
        (WTF::LockBase::unlockSlow):
        * wtf/Lock.h:
        (WTF::LockBase::isLocked):
        (WTF::LockBase::isFullyReset):
        * wtf/ParkingLot.cpp:
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkAll):
        * wtf/ParkingLot.h:
        * wtf/WordLock.h:
        (WTF::WordLock::isLocked):
        (WTF::WordLock::isFullyReset):

2015-08-11  Filip Pizlo  <fpizlo@apple.com>

        Always use a byte-sized lock implementation
        https://bugs.webkit.org/show_bug.cgi?id=147908

        Reviewed by Geoffrey Garen.

        At the start of my locking algorithm crusade, I implemented Lock, which is a sizeof(void*)
        lock implementation with some nice theoretical properties and good performance. Then I added
        the ParkingLot abstraction and ByteLock. ParkingLot uses Lock in its implementation.
        ByteLock uses ParkingLot to create a sizeof(char) lock implementation that performs like
        Lock.

        It turns out that ByteLock is always at least as good as Lock, and sometimes a lot better:
        it requires 8x less memory on 64-bit systems. It's hard to construct a benchmark where
        ByteLock is significantly slower than Lock, and when you do construct such a benchmark,
        tweaking it a bit can also create a scenario where ByteLock is significantly faster than
        Lock.

        So, the thing that we call "Lock" should really use ByteLock's algorithm, since it is more
        compact and just as fast. That's what this patch does.

        But we still need to keep the old Lock algorithm, because it's used to implement ParkingLot,
        which in turn is used to implement ByteLock. So this patch does this transformation:

        - Move the algorithm in Lock into files called WordLock.h|cpp. Make ParkingLot use
          WordLock.

        - Move the algorithm in ByteLock into Lock.h|cpp. Make everyone who used ByteLock use Lock
          instead. All other users of Lock now get the byte-sized lock implementation.

        - Remove the old ByteLock files.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * benchmarks/LockSpeedTest.cpp:
        (main):
        * wtf/WordLock.cpp: Added.
        (WTF::WordLock::lockSlow):
        (WTF::WordLock::unlockSlow):
        * wtf/WordLock.h: Added.
        (WTF::WordLock::WordLock):
        (WTF::WordLock::lock):
        (WTF::WordLock::unlock):
        (WTF::WordLock::isHeld):
        (WTF::WordLock::isLocked):
        * wtf/ByteLock.cpp: Removed.
        * wtf/ByteLock.h: Removed.
        * wtf/CMakeLists.txt:
        * wtf/Lock.cpp:
        (WTF::LockBase::lockSlow):
        (WTF::LockBase::unlockSlow):
        * wtf/Lock.h:
        (WTF::LockBase::lock):
        (WTF::LockBase::unlock):
        (WTF::LockBase::isHeld):
        (WTF::LockBase::isLocked):
        (WTF::Lock::Lock):
        * wtf/ParkingLot.cpp:

2015-08-11  Filip Pizlo  <fpizlo@apple.com>

        Remove ByteSpinLock
        https://bugs.webkit.org/show_bug.cgi?id=147900

        Rubber stamped by Mark Lam.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/ByteSpinLock.h: Removed.

2015-08-11  Brent Fulgham  <bfulgham@apple.com>

        [Win] Switch Windows build to Visual Studio 2015
        https://bugs.webkit.org/show_bug.cgi?id=147887
        <rdar://problem/22235098>

        Reviewed by Alex Christensen.

        Update Visual Studio project file settings to use the current Visual
        Studio and compiler. Continue targeting binaries to run on our minimum
        supported configuration of Windows 7.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTFGenerated.vcxproj:

2015-08-10  Filip Pizlo  <fpizlo@apple.com>

        WTF should have a ParkingLot for parking sleeping threads, so that locks can fit in 1.6 bits
        https://bugs.webkit.org/show_bug.cgi?id=147665

        Reviewed by Mark Lam.

        This change adds a major new abstraction for concurrency algorithms in WebKit. It's called a
        ParkingLot, and it makes available a thread parking queue for each virtual address in memory.
        The queues are maintained by a data-access-parallel concurrent hashtable implementation. The
        memory usage is bounded at around half a KB per thread.

        The ParkingLot makes it easy to turn any spinlock-based concurrency protocol into one that
        parks threads after a while. Because queue state management is up to the ParkingLot and not
        the user's data structure, this patch uses it to implement a full adaptive mutex in one byte.
        In fact, only three states of that byte are used (0 = available, 1 = locked, 2 = locked and
        there are parked threads). Hence the joke that ParkingLot allows locks that fit in 1.6 bits.

        ByteLock is used as a replacement for ByteSpinLock in JavaScriptCore.

        The API tests for this also demo how to create a completely fair (FIFO) binary semamphore. The
        comment in Lock.h shows how we could accelerate Lock performance using ParkingLot. After we
        are sure that this code works, we can expand the use of ParkingLot. That's covered by
        https://bugs.webkit.org/show_bug.cgi?id=147841.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * benchmarks/LockSpeedTest.cpp:
        (main):
        * wtf/Atomics.h:
        (WTF::Atomic::compareExchangeWeak):
        (WTF::Atomic::compareExchangeStrong):
        * wtf/ByteLock.cpp: Added.
        (WTF::ByteLock::lockSlow):
        (WTF::ByteLock::unlockSlow):
        * wtf/ByteLock.h: Added.
        (WTF::ByteLock::ByteLock):
        (WTF::ByteLock::lock):
        (WTF::ByteLock::unlock):
        (WTF::ByteLock::isHeld):
        (WTF::ByteLock::isLocked):
        * wtf/CMakeLists.txt:
        * wtf/Lock.h:
        * wtf/ParkingLot.cpp: Added.
        (WTF::ParkingLot::parkConditionally):
        (WTF::ParkingLot::unparkOne):
        (WTF::ParkingLot::unparkAll):
        (WTF::ParkingLot::forEach):
        * wtf/ParkingLot.h: Added.
        (WTF::ParkingLot::compareAndPark):

2015-08-11  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed gardening.

        * WTF.vcxproj/WTF.vcxproj.filters: Place file references so that files appear in correct
        folders in IDE.

2015-08-10  Youenn Fablet  <youenn.fablet@crf.canon.fr>

        Compile warning (-Wsign-compare) on 32-bits at WebCore/platform/FileSystem.cpp
        https://bugs.webkit.org/show_bug.cgi?id=146414

        Reviewed by Darin Adler.

        Added convertSafely routine based on isInBounds routine.
        Updated BoundChecker by adding a third boolean parameter to this template giving whether Target has greater or equal precision than Source.
        Removed BoundCheckElider, which is no longer necessary and had some issues.

        * wtf/CheckedArithmetic.h:
        (WTF::isInBounds):
        (WTF::convertSafely):

2015-08-07  Filip Pizlo  <fpizlo@apple.com>

        Lightweight locks should be adaptive
        https://bugs.webkit.org/show_bug.cgi?id=147545

        Reviewed by Geoffrey Garen.

        A common idiom in WebKit is to use spinlocks. We use them because the lock acquisition
        overhead is lower than system locks and because they take dramatically less space than system
        locks. The speed and space advantages of spinlocks can be astonishing: an uncontended spinlock
        acquire is up to 10x faster and under microcontention - short critical section with two or
        more threads taking turns - spinlocks are up to 100x faster. Spinlocks take only 1 byte or 4
        bytes depending on the flavor, while system locks take 64 bytes or more. Clearly, WebKit
        should continue to avoid system locks - they are just far too slow and far too big.

        But there is a problem with this idiom. System lock implementations will sleep a thread when
        it attempts to acquire a lock that is held, while spinlocks will cause the thread to burn CPU.
        In WebKit spinlocks, the thread will repeatedly call sched_yield(). This is awesome for
        microcontention, but awful when the lock will not be released for a while. In fact, when
        critical sections take tens of microseconds or more, the CPU time cost of our spinlocks is
        almost 100x more than the CPU time cost of a system lock. This case doesn't arise too
        frequently in our current uses of spinlocks, but that's probably because right now there are
        places where we make a conscious decision to use system locks - even though they use more
        memory and are slower - because we don't want to waste CPU cycles when a thread has to wait a
        while to acquire the lock.

        The solution is to just implement a modern adaptive mutex in WTF. Luckily, this isn't a new
        concept. This patch implements a mutex that is reminiscent of the kinds of low-overhead locks
        that JVMs use. The actual implementation here is inspired by some of the ideas from [1]. The
        idea is simple: the fast path is an inlined CAS to immediately acquire a lock that isn't held,
        the slow path tries some number of spins to acquire the lock, and if that fails, the thread is
        put on a queue and put to sleep. The queue is made up of statically allocated thread nodes and
        the lock itself is a tagged pointer: either it is just bits telling us the complete lock state
        (not held or held) or it is a pointer to the head of a queue of threads waiting to acquire the
        lock. This approach gives WTF::Lock three different levels of adaptation: an inlined fast path
        if the lock is not contended, a short burst of spinning for microcontention, and a full-blown
        queue for critical sections that are held for a long time.

        On a locking microbenchmark, this new Lock exhibits the following performance
        characteristics:

        - Lock+unlock on an uncontended no-op critical section: 2x slower than SpinLock and 3x faster
          than a system mutex.

        - Lock+unlock on a contended no-op critical section: 2x slower than SpinLock and 100x faster
          than a system mutex.

        - CPU time spent in lock() on a lock held for a while: same as system mutex, 90x less than a
          SpinLock.

        - Memory usage: sizeof(void*), so on 64-bit it's 8x less than a system mutex but 2x worse than
          a SpinLock.

        This patch replaces all uses of SpinLock with Lock, since our critical sections are not
        no-ops so if you do basically anything in your critical section, the Lock overhead will be
        invisible. Also, in all places where we used SpinLock, we could tolerate 8 bytes of overhead
        instead of 4. Performance benchmarking using JSC macrobenchmarks shows no difference, which is
        as it should be: the purpose of this change is to reduce CPU time wasted, not wallclock time.
        This patch doesn't replace any uses of ByteSpinLock, since we expect that the space benefits
        of having a lock that just uses a byte are still better than the CPU wastage benefits of
        Lock. But, this work will enable some future work to create locks that will fit in just 1.6
        bits: https://bugs.webkit.org/show_bug.cgi?id=147665.
        
        Rolling this back in after fixing Lock::unlockSlow() for architectures that have a truly weak
        CAS. Since the Lock::unlock() fast path can go to slow path spuriously, it may go there even if
        there aren't any threads on the Lock's queue. So, unlockSlow() must be able to deal with the
        possibility of a null queue head.

        [1] http://www.filpizlo.com/papers/pizlo-pppj2011-fable.pdf

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * benchmarks: Added.
        * benchmarks/LockSpeedTest.cpp: Added.
        (main):
        * wtf/Atomics.h:
        (WTF::Atomic::compareExchangeWeak):
        (WTF::Atomic::compareExchangeStrong):
        * wtf/CMakeLists.txt:
        * wtf/Lock.cpp: Added.
        (WTF::LockBase::lockSlow):
        (WTF::LockBase::unlockSlow):
        * wtf/Lock.h: Added.
        (WTF::LockBase::lock):
        (WTF::LockBase::unlock):
        (WTF::LockBase::isHeld):
        (WTF::LockBase::isLocked):
        (WTF::Lock::Lock):
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::release):
        (WTF::MetaAllocatorHandle::shrink):
        (WTF::MetaAllocator::allocate):
        (WTF::MetaAllocator::currentStatistics):
        (WTF::MetaAllocator::addFreshFreeSpace):
        (WTF::MetaAllocator::debugFreeSpaceSize):
        * wtf/MetaAllocator.h:
        * wtf/SpinLock.h:
        * wtf/ThreadingPthreads.cpp:
        * wtf/ThreadingWin.cpp:
        * wtf/text/AtomicString.cpp:
        * wtf/text/AtomicStringImpl.cpp:
        (WTF::AtomicStringTableLocker::AtomicStringTableLocker):

2015-08-05  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, roll out http://trac.webkit.org/changeset/187972.

        * wtf/Atomics.cpp:
        (WTF::getSwapLock):
        (WTF::atomicStep):
        * wtf/MessageQueue.h:
        (WTF::MessageQueue::infiniteTime):
        (WTF::MessageQueue<DataType>::append):
        (WTF::MessageQueue<DataType>::appendAndKill):
        (WTF::MessageQueue<DataType>::appendAndCheckEmpty):
        (WTF::MessageQueue<DataType>::prepend):
        (WTF::MessageQueue<DataType>::removeIf):
        (WTF::MessageQueue<DataType>::isEmpty):
        (WTF::MessageQueue<DataType>::kill):
        (WTF::MessageQueue<DataType>::killed):
        * wtf/ParallelJobsGeneric.cpp:
        (WTF::ParallelEnvironment::ThreadPrivate::execute):
        (WTF::ParallelEnvironment::ThreadPrivate::waitForFinish):
        (WTF::ParallelEnvironment::ThreadPrivate::workerThread):
        * wtf/ParallelJobsGeneric.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/ThreadSpecificWin.cpp:
        (WTF::destructorsList):
        (WTF::destructorsMutex):
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::ThreadSpecificThreadExit):
        * wtf/Threading.cpp:
        (WTF::threadEntryPoint):
        (WTF::createThread):
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::threadMapMutex):
        (WTF::initializeThreading):
        (WTF::identifierByPthreadHandle):
        (WTF::establishIdentifierForPthreadHandle):
        (WTF::changeThreadPriority):
        (WTF::waitForThreadCompletion):
        (WTF::detachThread):
        (WTF::threadDidExit):
        (WTF::currentThread):
        (WTF::Mutex::Mutex):
        (WTF::Mutex::~Mutex):
        (WTF::Mutex::lock):
        (WTF::Mutex::tryLock):
        (WTF::Mutex::unlock):
        (WTF::ThreadCondition::~ThreadCondition):
        (WTF::ThreadCondition::wait):
        (WTF::ThreadCondition::timedWait):
        (WTF::DeprecatedMutex::DeprecatedMutex): Deleted.
        (WTF::DeprecatedMutex::~DeprecatedMutex): Deleted.
        (WTF::DeprecatedMutex::lock): Deleted.
        (WTF::DeprecatedMutex::tryLock): Deleted.
        (WTF::DeprecatedMutex::unlock): Deleted.
        * wtf/ThreadingWin.cpp:
        (WTF::initializeCurrentThreadInternal):
        (WTF::threadMapMutex):
        (WTF::initializeThreading):
        (WTF::storeThreadHandleByIdentifier):
        (WTF::threadHandleForIdentifier):
        (WTF::clearThreadHandleForIdentifier):
        (WTF::currentThread):
        (WTF::Mutex::Mutex):
        (WTF::Mutex::~Mutex):
        (WTF::Mutex::lock):
        (WTF::Mutex::tryLock):
        (WTF::Mutex::unlock):
        (WTF::ThreadCondition::~ThreadCondition):
        (WTF::ThreadCondition::wait):
        (WTF::ThreadCondition::timedWait):
        (WTF::DeprecatedMutex::DeprecatedMutex): Deleted.
        (WTF::DeprecatedMutex::~DeprecatedMutex): Deleted.
        (WTF::DeprecatedMutex::lock): Deleted.
        (WTF::DeprecatedMutex::tryLock): Deleted.
        (WTF::DeprecatedMutex::unlock): Deleted.
        * wtf/WorkQueue.h:
        * wtf/dtoa.cpp:
        * wtf/dtoa.h:
        * wtf/efl/DispatchQueueEfl.cpp:
        (DispatchQueue::dispatch):
        (DispatchQueue::performWork):
        (DispatchQueue::performTimerWork):
        (DispatchQueue::insertTimerWorkItem):
        (DispatchQueue::wakeUpThread):
        (DispatchQueue::getNextTimeOut):
        * wtf/efl/DispatchQueueEfl.h:
        * wtf/efl/RunLoopEfl.cpp:
        (WTF::RunLoop::wakeUpEvent):
        (WTF::RunLoop::wakeUp):
        * wtf/threads/BinarySemaphore.cpp:
        (WTF::BinarySemaphore::signal):
        (WTF::BinarySemaphore::wait):
        * wtf/threads/BinarySemaphore.h:
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::handleCallback):
        (WTF::WorkQueue::platformInvalidate):
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::timerCallback):
        (WTF::WorkQueue::dispatchAfter):

2015-08-05  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix Windows.

        * wtf/ThreadSpecificWin.cpp:
        (WTF::destructorsList):
        (WTF::destructorsMutex):
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::ThreadSpecificThreadExit):

2015-08-04  Filip Pizlo  <fpizlo@apple.com>

        Rename Mutex to DeprecatedMutex
        https://bugs.webkit.org/show_bug.cgi?id=147675

        Reviewed by Geoffrey Garen.

        * wtf/Atomics.cpp:
        (WTF::getSwapLock):
        (WTF::atomicStep):
        * wtf/MessageQueue.h:
        (WTF::MessageQueue::infiniteTime):
        (WTF::MessageQueue<DataType>::append):
        (WTF::MessageQueue<DataType>::appendAndKill):
        (WTF::MessageQueue<DataType>::appendAndCheckEmpty):
        (WTF::MessageQueue<DataType>::prepend):
        (WTF::MessageQueue<DataType>::removeIf):
        (WTF::MessageQueue<DataType>::isEmpty):
        (WTF::MessageQueue<DataType>::kill):
        (WTF::MessageQueue<DataType>::killed):
        * wtf/ParallelJobsGeneric.cpp:
        (WTF::ParallelEnvironment::ThreadPrivate::execute):
        (WTF::ParallelEnvironment::ThreadPrivate::waitForFinish):
        (WTF::ParallelEnvironment::ThreadPrivate::workerThread):
        * wtf/ParallelJobsGeneric.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h:
        * wtf/Threading.cpp:
        (WTF::threadEntryPoint):
        (WTF::createThread):
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::threadMapMutex):
        (WTF::initializeThreading):
        (WTF::identifierByPthreadHandle):
        (WTF::establishIdentifierForPthreadHandle):
        (WTF::changeThreadPriority):
        (WTF::waitForThreadCompletion):
        (WTF::detachThread):
        (WTF::threadDidExit):
        (WTF::currentThread):
        (WTF::DeprecatedMutex::DeprecatedMutex):
        (WTF::DeprecatedMutex::~DeprecatedMutex):
        (WTF::DeprecatedMutex::lock):
        (WTF::DeprecatedMutex::tryLock):
        (WTF::DeprecatedMutex::unlock):
        (WTF::ThreadCondition::~ThreadCondition):
        (WTF::ThreadCondition::wait):
        (WTF::ThreadCondition::timedWait):
        (WTF::Mutex::Mutex): Deleted.
        (WTF::Mutex::~Mutex): Deleted.
        (WTF::Mutex::lock): Deleted.
        (WTF::Mutex::tryLock): Deleted.
        (WTF::Mutex::unlock): Deleted.
        * wtf/ThreadingWin.cpp:
        (WTF::initializeCurrentThreadInternal):
        (WTF::threadMapMutex):
        (WTF::initializeThreading):
        (WTF::storeThreadHandleByIdentifier):
        (WTF::threadHandleForIdentifier):
        (WTF::clearThreadHandleForIdentifier):
        (WTF::currentThread):
        (WTF::DeprecatedMutex::DeprecatedMutex):
        (WTF::DeprecatedMutex::~DeprecatedMutex):
        (WTF::DeprecatedMutex::lock):
        (WTF::DeprecatedMutex::tryLock):
        (WTF::DeprecatedMutex::unlock):
        (WTF::ThreadCondition::~ThreadCondition):
        (WTF::ThreadCondition::wait):
        (WTF::ThreadCondition::timedWait):
        (WTF::Mutex::Mutex): Deleted.
        (WTF::Mutex::~Mutex): Deleted.
        (WTF::Mutex::lock): Deleted.
        (WTF::Mutex::tryLock): Deleted.
        (WTF::Mutex::unlock): Deleted.
        * wtf/WorkQueue.h:
        * wtf/dtoa.cpp:
        * wtf/dtoa.h:
        * wtf/efl/DispatchQueueEfl.cpp:
        (DispatchQueue::dispatch):
        (DispatchQueue::performWork):
        (DispatchQueue::performTimerWork):
        (DispatchQueue::insertTimerWorkItem):
        (DispatchQueue::wakeUpThread):
        (DispatchQueue::getNextTimeOut):
        * wtf/efl/DispatchQueueEfl.h:
        * wtf/efl/RunLoopEfl.cpp:
        (WTF::RunLoop::wakeUpEvent):
        (WTF::RunLoop::wakeUp):
        * wtf/threads/BinarySemaphore.cpp:
        (WTF::BinarySemaphore::signal):
        (WTF::BinarySemaphore::wait):
        * wtf/threads/BinarySemaphore.h:
        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::handleCallback):
        (WTF::WorkQueue::platformInvalidate):
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::timerCallback):
        (WTF::WorkQueue::dispatchAfter):

2015-08-04  Alex Christensen  <achristensen@webkit.org>

        Fix quirks with CMake and VS2015
        https://bugs.webkit.org/show_bug.cgi?id=147663

        Reviewed by Brent Fulgham.

        * wtf/Platform.h:
        Build fix after r187908

2015-08-04  Brent Fulgham  <bfulgham@apple.com>

        [Win] Update Apple Windows build for VS2015
        https://bugs.webkit.org/show_bug.cgi?id=147653

        Reviewed by Dean Jackson.

        * WTF.vcxproj/WTF.vcxproj.filters: Drive-by-fix to place files in
        proper project locations in the IDE.
        * wtf/Platform.h: Don't define the _HAS_EXCEPTIONS macro when building with
        Visual Studio 2015.

2015-08-04  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r187815 and r187817.
        https://bugs.webkit.org/show_bug.cgi?id=147644

        Caused lots of Windows crashes (Requested by smfr on #webkit).

        Reverted changesets:

        "[WTF] Turn tryMakeString(), makeString() into variadic
        templates"
        https://bugs.webkit.org/show_bug.cgi?id=147142
        http://trac.webkit.org/changeset/187815

        "Unreviewed build fix."
        http://trac.webkit.org/changeset/187817

2015-08-04  Alex Christensen  <achristensen@webkit.org>

        Enable WebGL on Windows CMake build.
        https://bugs.webkit.org/show_bug.cgi?id=143311

        Reviewed by Csaba Osztrogonác.

        * wtf/FeatureDefines.h:
        Made the CMake feature defines the same as the non-CMake feature defines.

2015-08-03  Csaba Osztrogonác  <ossy@webkit.org>

        Introduce COMPILER(GCC_OR_CLANG) guard and make COMPILER(GCC) true only for GCC
        https://bugs.webkit.org/show_bug.cgi?id=146833

        Reviewed by Alexey Proskuryakov.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h: Removed redundant COMPILER(CLANG) guard.
        * wtf/Atomics.cpp:
        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):
        (WTF::compilerFence):
        * wtf/Compiler.h:
         - Renamed COMPILER(GCC) to COMPILER(GCC_OR_CLANG), because it is true for both compiler.
         - Added COMPILER(GCC) which is true only for GCC.
         - Moved all GCC related stuff to one block and removed redundant guards accordingly.
         - Removed the unused default false definition of GCC_VERSION_AT_LEAST for non GCC compilers.
        * wtf/ExportMacros.h:
        * wtf/FastMalloc.h:
        * wtf/Platform.h:
        * wtf/StdLibExtras.h:
        * wtf/Vector.h:
        * wtf/text/ASCIIFastPath.h:
        (WTF::copyLCharsFromUCharSource):

2015-08-03  Zan Dobersek  <zdobersek@igalia.com>

        Unreviewed build fix.

        * wtf/text/StringConcatenate.h: Include <tuple> to avoid missing
        std::tuple<> class definitions.

2015-08-03  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Turn tryMakeString(), makeString() into variadic templates
        https://bugs.webkit.org/show_bug.cgi?id=147142

        Reviewed by Sam Weinig.

        Built upon the original work by Anders Carlsson, Mark Rowe and Sam Weinig.

        Implement tryMakeString() and makeString() as variadic templates, replacing
        the argument count-based overloads.

        tryMakeString() now constructs a stack-based tuple of necessary StringTypeAdapter
        objects and utilizes the StringAdapterTuple struct template to operate on that
        tuple, recursively calling the necessary operations on each element in the tuple.
        This effectively mimics the process of previous tryMakeString() implementation,
        but makes it scalable to a tuple of elements that are to be concatenated.

        StringAppend class template now stores two StringTypeAdapter objects for the
        two passed-in string objects, packed in a tuple, calling
        StringAdapterTuple<>::createString() directly when concatenating the two objects
        into one String.

        * wtf/text/StringConcatenate.h:
        (WTF::StringTypeAdapter<char>::length):
        (WTF::StringTypeAdapter<char>::is8Bit):
        (WTF::StringAdapterTuple::sumWithOverflow):
        (WTF::StringAdapterTuple::is8Bit):
        (WTF::StringAdapterTuple::writeTo):
        (WTF::StringAdapterTuple::createString):
        (WTF::tryMakeString):
        (WTF::makeString):
        (WTF::sumWithOverflow): Deleted.
        * wtf/text/StringOperators.h:
        (WTF::StringAppend::StringAppend):
        (WTF::StringAppend::operator String):
        (WTF::StringAppend::is8Bit):
        (WTF::StringAppend::writeTo):
        (WTF::StringAppend::length):
        (WTF::StringAppend::string1):
        (WTF::StringAppend::string2):

2015-08-03  Anders Carlsson  <andersca@apple.com>

        Make it possible to use String::utf8() in the debugger
        https://bugs.webkit.org/show_bug.cgi?id=147566

        Reviewed by Tim Horton.

        Add a new utf8() overload that doesn't take any parameters and just calls utf8(LenientConversion), since lldb doesn't support evaluating
        function calls with default parameters at the moment.

        * wtf/text/WTFString.cpp:
        (WTF::String::utf8):
        * wtf/text/WTFString.h:

2015-08-02  Benjamin Poulain  <bpoulain@apple.com>

        Investigate HashTable::HashTable(const HashTable&) and HashTable::operator=(const HashTable&) performance for hash-based static analyses
        https://bugs.webkit.org/show_bug.cgi?id=118455

        Reviewed by Filip Pizlo.

        Previously, when copying a HashTable, we would start from scratch
        with an empty table and insert elements one by one, growing-rehashing
        the table as needed.

        With this patch, we have 2 improvements to remove most of the cost.

        First, we compute a good size from the start. This removes all the
        reallocations and rehashs.
        This is where the biggest gain comes from.

        The second part is a simpler version of add() when we know that
        we cannot find a bucket with the same key and there cannot
        be any deleted bucket.
        This removes most branches from the hot loop, cutting another 25%
        of the time.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::HashTable):

2015-08-01  Myles C. Maxfield  <mmaxfield@apple.com>

        HashTraits<AtomicString> can use SimpleClassHashTraits
        https://bugs.webkit.org/show_bug.cgi?id=147528

        Reviewed by Andreas Kling.

        No point in duplicating the code inside SimpleClassHashTraits.

        * wtf/text/AtomicStringHash.h:
        (WTF::HashTraits<WTF::AtomicString>::constructDeletedValue): Deleted.
        (WTF::HashTraits<WTF::AtomicString>::isDeletedValue): Deleted.

2015-08-01  Alex Christensen  <achristensen@webkit.org>

        Fix compile errors with VS2015
        https://bugs.webkit.org/show_bug.cgi?id=147526

        Reviewed by Myles Maxfield.

        * wtf/StringExtras.h:
        (snprintf):
        (wtf_vsnprintf):
        VS2015 has an implementation of snprintf.

2015-07-31  Alex Christensen  <achristensen@webkit.org>

        Prepare for VS2015
        https://bugs.webkit.org/show_bug.cgi?id=146579

        Reviewed by Jon Honeycutt.

        * wtf/StdLibExtras.h:
        (std::exchange):
        Added preprocessor macros around functions implemented in VS2015's standard library.

2015-07-30  Chris Dumez  <cdumez@apple.com>

        Mark more classes as fast allocated
        https://bugs.webkit.org/show_bug.cgi?id=147440

        Reviewed by Sam Weinig.

        Mark more classes as fast allocated for performance. We heap-allocate
        objects of those types throughout the code base.

        * wtf/Bag.h:
        * wtf/SegmentedVector.h:
        * wtf/SentinelLinkedList.h:

2015-07-29  Basile Clement  <basile_clement@apple.com>

        Remove native call inlining
        https://bugs.webkit.org/show_bug.cgi?id=147417

        Rubber-stamped by Filip Pizlo.

        * wtf/Platform.h:

2015-07-28  Yusuke Suzuki  <utatane.tea@gmail.com>

        [ES6] Add ENABLE_ES6_MODULES compile time flag with the default value "false"
        https://bugs.webkit.org/show_bug.cgi?id=147350

        Reviewed by Sam Weinig.

        * wtf/FeatureDefines.h:

2015-07-28  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix Windows build.

        * wtf/MetaAllocatorHandle.h:
        (WTF::MetaAllocatorHandle::key):

2015-07-27  Filip Pizlo  <fpizlo@apple.com>

        Add logging when executable code gets deallocated
        https://bugs.webkit.org/show_bug.cgi?id=147355

        Reviewed by Mark Lam.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocatorHandle::dump): It's useful to be able to dump these.
        * wtf/MetaAllocatorHandle.h:

2015-07-28  Benjamin Poulain  <bpoulain@apple.com>

        Speed up StringBuilder::appendQuotedJSONString()
        https://bugs.webkit.org/show_bug.cgi?id=147352

        Reviewed by Andreas Kling.

        * wtf/text/StringBuilder.cpp:
        (WTF::appendQuotedJSONStringInternal):
        The cases '"' and '\\' are not that uncommon, and they can easily
        be handled in the original branch testing for them.

        This is about 2.5% better on the JSON.stringify test.

2015-07-27  Alex Christensen  <achristensen@webkit.org>

        Progress towards building AppleWin with CMake
        https://bugs.webkit.org/show_bug.cgi?id=147325

        Reviewed by Martin Robinson.

        * wtf/PlatformWin.cmake:
        Link with CoreFoundation.lib.

2015-07-25  Carlos Alberto Lopez Perez  <clopez@igalia.com>

        REGRESSION (bmalloc): WebKit performance tests don't report memory stats.
        https://bugs.webkit.org/show_bug.cgi?id=141247

        Reviewed by Geoffrey Garen.

        Meanwhile a better way of getting memory stats with bmalloc is not found
        (see bug 136592), we can report as memory stats the resident set size
        information that the operating system provides to us.

        This at least should be good enough to get back the memory stats on the
        performance tests and being able to track down memory usage regressions
        at https://perf.webkit.org

        * wtf/FastMalloc.cpp:
        (WTF::fastMallocStatistics): Report maxrss data as committedVMBytes.

2015-07-24  Csaba Osztrogonác  <ossy@webkit.org>

        Remove the unused GCC workaround - std::is_trivially_destructible
        https://bugs.webkit.org/show_bug.cgi?id=147226

        Reviewed by Darin Adler.

        * wtf/StdLibExtras.h:

2015-07-23  Alex Christensen  <achristensen@webkit.org>

        Remove compile and runtime flags for promises.
        https://bugs.webkit.org/show_bug.cgi?id=147244

        Reviewed by Yusuke Suzuki.

        * wtf/FeatureDefines.h:

2015-07-22  Sukolsak Sakshuwong  <sukolsak@gmail.com>

        Add ENABLE_WEBASSEMBLY feature flag for WebAssembly
        https://bugs.webkit.org/show_bug.cgi?id=147212

        Reviewed by Filip Pizlo.

        * wtf/FeatureDefines.h:

2015-07-22  Filip Pizlo  <fpizlo@apple.com>

        Introduce release assert for using threads before threading is initialized
        https://bugs.webkit.org/show_bug.cgi?id=147200

        Reviewed by Michael Saboff.
        
        This will help bugs where you use createThread() before calling initializeThreading().

        * wtf/ThreadIdentifierDataPthreads.cpp:
        (WTF::ThreadIdentifierData::initialize):

2015-07-21  Daniel Bates  <dabates@apple.com>

        WTFCrash() in WebKit::WebProcess::networkConnection()
        https://bugs.webkit.org/show_bug.cgi?id=147112
        <rdar://problem/18477459>

        Reviewed by Gavin Barraclough.

        Add explicit boolean conversion function and remove overload of operator! to support
        checking whether an activity token is valid more directly than using the overloaded operator!.

        * wtf/RefCounter.h:
        (WTF::RefCounter::Token::operator bool): Added.
        (WTF::RefCounter::Token::operator!): Deleted.

2015-07-20  Mark Lam  <mark.lam@apple.com>

        Rollout r187020 and r187021: breaks JSC API tests on debug builds.
        https://bugs.webkit.org/show_bug.cgi?id=147110

        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::WTFThreadData):
        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::stack):

2015-07-20  Alex Christensen  <achristensen@webkit.org>

        Resurrect CMake build on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=147083

        Reviewed by Gyuyoung Kim.

        * wtf/PlatformWin.cmake:

2015-07-20  Per Arne Vollan  <peavo@outlook.com>

        JavaScriptCore performance is very bad on Windows
        https://bugs.webkit.org/show_bug.cgi?id=146448

        Reviewed by Mark Lam.

        Updating the stack bounds is time consuming.
        Only update the stack bounds when a new fiber is running.

        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::WTFThreadData):
        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::stack):

2015-07-20  Julien Brianceau  <julien.brianceau@gmail.com>

        Use isnan from std namespace in Stopwatch.h.
        https://bugs.webkit.org/show_bug.cgi?id=146911

        Reviewed by Žan Doberšek.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::isActive):
        (WTF::Stopwatch::start):
        (WTF::Stopwatch::stop):
        (WTF::Stopwatch::elapsedTime):

2015-07-16  Benjamin Poulain  <bpoulain@apple.com>

        [Content extensions] Combine suffixes when generating NFAs
        https://bugs.webkit.org/show_bug.cgi?id=146961

        Reviewed by Alex Christensen.

        * wtf/Vector.h:
        (WTF::minCapacity>::Vector):
        (WTF::=):
        Copying a vector with a different inline capacity was broken due to
        the addition of MinimumCapacity.

        This feature was needed by this patch so I fixed WTF.

2015-07-15  Anders Carlsson  <andersca@apple.com>

        Make JavaScriptCore SPI headers used by WebCore SPI headers self-contained
        https://bugs.webkit.org/show_bug.cgi?id=146978

        Reviewed by Dan Bernstein.

        * wtf/ExportMacros.h:

2015-07-14  Anders Carlsson  <andersca@apple.com>

        Assertions.h should include ExportMacros.h
        https://bugs.webkit.org/show_bug.cgi?id=146948

        Reviewed by Tim Horton.

        * wtf/Assertions.h:

2015-07-11  Joseph Pecoraro  <pecoraro@apple.com>

        Unreviewed build fix, restrict APP_LINKS to just iOS.

        * wtf/Platform.h:

2015-07-09  Tim Horton  <timothy_horton@apple.com>

        Use CoreAnimation fences instead of synchronous IPC to synchronize resize
        https://bugs.webkit.org/show_bug.cgi?id=146294
        <rdar://problem/21090193>

        Reviewed by Anders Carlsson.

        * wtf/Platform.h:
        Add HAVE(COREANIMATION_FENCES)

2015-07-04  Chris Dumez  <cdumez@apple.com>

        Drop RefPtr::clear() method
        https://bugs.webkit.org/show_bug.cgi?id=146556

        Reviewed by Brady Eidson.

        Drop RefPtr::clear() method in favor of "= nullptr;" pattern.
        Also made the "= nullptr;" pattern as efficient as clear()
        by providing a operator=(nullptr_t) overload. Local micro-
        benchmarking showed that "= nullptr;" used to be ~1.7% slower
        than clear().

2015-07-03  Dan Bernstein  <mitz@apple.com>

        [Xcode] Update some build settings as recommended by Xcode 7
        https://bugs.webkit.org/show_bug.cgi?id=146597

        Reviewed by Sam Weinig.

        * Configurations/Base.xcconfig: Enabled CLANG_WARN_UNREACHABLE_CODE and
        GCC_NO_COMMON_BLOCKS. Removed GCC_MODEL_TUNING.

        * WTF.xcodeproj/project.pbxproj: Updated LastUpgradeCheck.

2015-07-01  Alex Christensen  <achristensen@webkit.org>

        Re-enable WebGL on WinCairo
        https://bugs.webkit.org/show_bug.cgi?id=146537

        Reviewed by Csaba Osztrogonác.

        * wtf/FeatureDefines.h:
        Enable WebGL on WinCairo again.

2015-07-01  Alex Christensen  <achristensen@webkit.org>

        Ignore Visual Studio warning in SegmentedVector
        https://bugs.webkit.org/show_bug.cgi?id=146514

        Reviewed by Andreas Kling.

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::deleteAllSegments):
        Use pragmas to ignore the 0 element array warning.

2015-07-01  Dean Jackson  <dino@apple.com>

        Disable the experimental WebGL2 implementation
        https://bugs.webkit.org/show_bug.cgi?id=146526
        <rdar://problem/21641235>

        Reviewed by Myles Maxfield.

        Add (and disable) an ENABLE_WEBGL2 flag.

        * wtf/FeatureDefines.h:

2015-06-30  Alex Christensen  <achristensen@webkit.org>

        [Win] Unreviewed build fix after r186169.

        * wtf/FeatureDefines.h:
        Temporarily disable WebGL on WinCairo. It was already temporarily disabled on AppleWin.

2015-06-30  Andy VanWagoner  <thetalecrafter@gmail.com>

        Implement ECMAScript Internationalization API
        https://bugs.webkit.org/show_bug.cgi?id=90906

        Reviewed by Benjamin Poulain.

        * wtf/FeatureDefines.h: add ENABLE_INTL flag

2015-06-30  Keith Miller  <keith_miller@apple.com>

        Errors in read() are not handled in WTF::cryptographicallyRandomValuesFromOS.
        https://bugs.webkit.org/show_bug.cgi?id=146473

        Reviewed by Filip Pizlo.

        We were not checking if errors occurred in WTF::cryptographicallyRandomValuesFromOS.
        We now buffer the data until enough bits of entropy exist to fill the buffer
        rather than crash. Additionally, added two crash functions so we can distinguish
        between the two reasons why we crashed in traces.

        * wtf/OSRandomSource.cpp:
        (WTF::crashUnableToOpenFD):
        (WTF::crashUnableToReadFromFD):
        (WTF::cryptographicallyRandomValuesFromOS):

2015-06-29  Dean Jackson  <dino@apple.com>

        Temporarily disable PICTURE_SIZES
        https://bugs.webkit.org/show_bug.cgi?id=146435
        <rdar://problem/21087013>

        Reviewed by Tim Horton.

        Temporarily disable PICTURE_SIZES because it causes problems with out
        of date <picture> polyfills.

        * wtf/FeatureDefines.h:

2015-06-26  Antti Koivisto  <antti@apple.com>

        Network process hangs fetching disk cache entries
        https://bugs.webkit.org/show_bug.cgi?id=146348
        <rdar://problem/21528072>

        Reviewed by Anders Carlsson.

        RunLoop::dispatch may deadlock if invoked with std::function that captures an object that calls RunLoop::dispatch in destructor.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):

            Don't reuse std::function variable in loop. We may end up destroying previously held std::function in assignment
            while holding the runloop mutex. With this change std::function is always destroyed with mutex unlocked.

2015-06-24  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r185906.
        https://bugs.webkit.org/show_bug.cgi?id=146276

        MSVC doesn't yet provide a const-qualified std::array<T,
        N>::size(), failing to compile the static_assert (Requested by
        zdobersek on #webkit).

        Reverted changeset:

        "Improve the source code generated by make_names.pl"
        https://bugs.webkit.org/show_bug.cgi?id=146208
        http://trac.webkit.org/changeset/185906

2015-06-24  Zan Dobersek  <zdobersek@igalia.com>

        Improve the source code generated by make_names.pl
        https://bugs.webkit.org/show_bug.cgi?id=146208

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::assertHashIsCorrect): Make this method const-qualified.

2015-06-22  Darin Adler  <darin@apple.com>

        Make Array.join work directly on substrings without reifying them
        https://bugs.webkit.org/show_bug.cgi?id=146191

        Reviewed by Andreas Kling.

        * wtf/Vector.h: Added an overload of uncheckedAppend like the one we added
        a while back, a non-template function that forwards through to the function
        template. This lets us call uncheckedAppend on an argument list and have it
        properly convert it to the Vector's element type.

        * wtf/text/StringView.h:
        (WTF::StringView::getCharactersWithUpconvert): Changed to not use memcpy;
        saw some indication the hand-written loop was faster when profiling. Also
        use m_length directly when we know we are dealing with an 8-bit string,
        since the masking that the index function does is not needed in that case.
        (WTF::StringView::UpconvertedCharacters::UpconvertedCharacters): Ditto.
        (WTF::StringView::toString): Ditto.
        (WTF::StringView::toFloat): Ditto.
        (WTF::StringView::toInt): Ditto.
        (WTF::StringView::toStringWithoutCopying): Ditto.
        (WTF::StringView::find): Ditto.

2015-06-22  YunQiang Su  <wzssyqa@gmail.com>

        [WTF] Platform.h: use _ABI64 instead of _MIPS_SIM_ABI64 to determine MIPS N64
        https://bugs.webkit.org/show_bug.cgi?id=145113

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2015-06-22  Anders Carlsson  <andersca@apple.com>

        Fix build.

        * wtf/threads/BinarySemaphore.cpp:

2015-06-22  Anders Carlsson  <andersca@apple.com>

        Get rid of the Windows specific BinarySemaphore implementation
        https://bugs.webkit.org/show_bug.cgi?id=146216

        Reviewed by Andreas Kling.

        The fact that the Windows implementation uses a HEVENT internally was only useful
        to the Windows port of WebKit2; we can get rid of it now.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * wtf/threads/BinarySemaphore.h:
        (WTF::BinarySemaphore::event): Deleted.
        * wtf/threads/win/BinarySemaphoreWin.cpp: Removed.
        (WTF::BinarySemaphore::BinarySemaphore): Deleted.
        (WTF::BinarySemaphore::~BinarySemaphore): Deleted.
        (WTF::BinarySemaphore::signal): Deleted.
        (WTF::BinarySemaphore::wait): Deleted.

2015-06-21  Gavin Barraclough  <barraclough@apple.com>

        Page load performance regression due to bugs.webkit.org/show_bug.cgi?id=145542
        https://bugs.webkit.org/show_bug.cgi?id=146198

        Unreviewed rollout.

        * wtf/glib/GUniquePtr.h:

2015-06-20  Michael Catanzaro  <mcatanzaro@igalia.com>

        [EFL][GTK] Define GLIB_VERSION_MIN_REQUIRED and require glib 2.36 for GTK
        https://bugs.webkit.org/show_bug.cgi?id=146181

        Reviewed by Martin Robinson.

        Define GLIB_VERSION_MIN_REQUIRED to avoid deprecation warnings.

        * wtf/Platform.h:

2015-06-19  Michael Catanzaro  <mcatanzaro@igalia.com>

        [SOUP] Define SOUP_VERSION_MIN_REQUIRED
        https://bugs.webkit.org/show_bug.cgi?id=146165

        Reviewed by Martin Robinson.

        Define SOUP_VERSION_MIN_REQUIRED to avoid deprecation warnings.

        * wtf/Platform.h:

2015-06-19  Mark Lam  <mark.lam@apple.com>

        Gardening: build fixes for GTK and EFL for CheckedArithmetic change.

        Not reviewed.

        * wtf/CheckedArithmetic.h:
        (WTF::Checked::operator<):
        (WTF::Checked::operator<=):
        (WTF::Checked::operator>):
        (WTF::Checked::operator>=):

2015-06-19  Mark Lam  <mark.lam@apple.com>

        CheckedArithmetic's operator bool() and operator==() is broken.
        https://bugs.webkit.org/show_bug.cgi?id=146129

        Reviewed by Geoffrey Garen and Oliver Hunt.

        The existing operator UnspecifiedBoolType*() in CheckedArithmetic is erroneously
        allowing the Checked value to be implicitly casted into pointer types.  This is
        because it is doing a reinterpret_cast<UnspecifiedBoolType*>(1) whereas the idiom
        relies on the address of a member e.g. &Checked::m_value.  As a result,
        ImageBufferData::putData() was getting an implicit cast of a Checked value to
        (void*)1 and doing incorrect pointer comparisons on it.

        Also, 2 of CheckedArithmetic's operator==() will crash if used on an overflowed
        value, while a 3rd one does not.  The 3rd one should be consistent and also crash
        if used on an overflowed Checked value.

        In this fix, we replace operator UnspecifiedBoolType*() with an explicit operator
        bool().  We also add the missing operators <, <=, >, and >=.  That takes care of
        the comparisons in ImageBufferData::putData().

        * wtf/CheckedArithmetic.h:
        (WTF::CrashOnOverflow::overflowed):
        (WTF::CrashOnOverflow::crash):
        (WTF::RecordOverflow::crash):

        (WTF::Checked::operator!):
        (WTF::Checked::operator bool):
        (WTF::Checked::unsafeGet):
        - Don't call CRASH() directly.  Delegate to the handler.

        (WTF::Checked::operator==):
        - Should call the handler's crash() to be consistent with the other 2 versions of
          operator== which will crash in unsafeGet() if used on an overflowed Checked
          value.

        (WTF::Checked::operator<):
        (WTF::Checked::operator<=):
        (WTF::Checked::operator>):
        (WTF::Checked::operator>=):
        - Add missing operators.

        (WTF::Checked::operator UnspecifiedBoolType*): Deleted.

2015-06-19  Csaba Osztrogonác  <ossy@webkit.org>

        [WK2] Fix unused-private-field warning in WebProcess/Plugins/PluginView.<h|cpp>
        https://bugs.webkit.org/show_bug.cgi?id=145252

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h: Moved the definition of ENABLE_PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC
        here from Source/WebKit2/WebProcess/WebPage/WebPage.h

2015-06-17  Andreas Kling  <akling@apple.com>

        SegmentedVector should waste less memory.
        <https://webkit.org/b/146069>

        Reviewed by Anders Carlsson.

        We were wasting sizeof(Vector) on every segment in SegmentVector.
        The segments were using inline capacity, and would never go beyond it,
        so all the size/capacity/out-of-line-buffer metadata was useless.

        Change the internal representation to Vector<T[SegmentSize]> instead.
        This saves 16 bytes per segment, so lower SegmentSize -> bigger savings!

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVectorIterator::operator*):
        (WTF::SegmentedVectorIterator::operator->):
        (WTF::SegmentedVectorIterator::operator++):
        (WTF::SegmentedVectorIterator::operator==):
        (WTF::SegmentedVectorIterator::operator!=):
        (WTF::SegmentedVectorIterator::SegmentedVectorIterator):
        (WTF::SegmentedVector::at):
        (WTF::SegmentedVector::append):
        (WTF::SegmentedVector::removeLast):
        (WTF::SegmentedVector::grow):
        (WTF::SegmentedVector::begin):
        (WTF::SegmentedVector::end):
        (WTF::SegmentedVector::deleteAllSegments):
        (WTF::SegmentedVector::ensureSegmentsFor):
        (WTF::SegmentedVector::ensureSegment):
        (WTF::SegmentedVector::allocateSegment):
        (WTF::SegmentedVectorIterator::operator=): Deleted.
        (WTF::SegmentedVector::SegmentedVector): Deleted.

2015-06-16  Andreas Kling  <akling@apple.com>

        Remove unused template parameter InlineCapacity from SegmentedVector.
        <https://webkit.org/b/146044>

        Reviewed by Anders Carlsson.

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVectorIterator::operator=):
        (WTF::SegmentedVectorIterator::SegmentedVectorIterator):
        (WTF::SegmentedVector::at):

2015-06-16  Mark Lam  <mark.lam@apple.com>

        Use NakedPtr<Exception>& to return exception results.
        https://bugs.webkit.org/show_bug.cgi?id=145870

        Reviewed by Anders Carlsson and Filip Pizlo.

        Introducing the NakedPtr class.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/NakedPtr.h: Added.
        (WTF::NakedPtr::NakedPtr):
        (WTF::NakedPtr::get):
        (WTF::NakedPtr::clear):
        (WTF::NakedPtr::operator*):
        (WTF::NakedPtr::operator->):
        (WTF::NakedPtr::operator T*):
        (WTF::NakedPtr::operator!):
        (WTF::NakedPtr::operator bool):
        (WTF::=):
        (WTF::NakedPtr<T>::swap):
        (WTF::swap):

2015-06-12  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] Move files under Source/WTF/wtf/gobject to Source/WTF/wtf/glib
        https://bugs.webkit.org/show_bug.cgi?id=145799

        Reviewed by Carlos Garcia Campos.

        Move the GLib-specific files to the Source/WTF/wtf/glib/ directory.
        'gobject' wasn't the most appropriate name for the directory since
        GObject is a submodule of GLib, but a lot of the code there didn't
        have much to do with GObject specifically.

        Build rules for the moved files are also updated.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * wtf/Platform.h:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/RunLoop.h:
        * wtf/WorkQueue.h:
        * wtf/glib/GLibUtilities.cpp: Renamed from Source/WTF/wtf/gobject/GlibUtilities.cpp.
        (getCurrentExecutablePath):
        * wtf/glib/GLibUtilities.h: Renamed from Source/WTF/wtf/gobject/GlibUtilities.h.
        * wtf/glib/GMainLoopSource.cpp: Renamed from Source/WTF/wtf/gobject/GMainLoopSource.cpp.
        (WTF::GMainLoopSource::create):
        (WTF::GMainLoopSource::GMainLoopSource):
        (WTF::GMainLoopSource::~GMainLoopSource):
        (WTF::GMainLoopSource::isScheduled):
        (WTF::GMainLoopSource::isActive):
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::scheduleIdleSource):
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleTimeoutSource):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::createMicrosecondsTimeoutSource):
        (WTF::GMainLoopSource::scheduleAndDeleteOnDestroy):
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy):
        (WTF::GMainLoopSource::prepareVoidCallback):
        (WTF::GMainLoopSource::finishVoidCallback):
        (WTF::GMainLoopSource::voidCallback):
        (WTF::GMainLoopSource::prepareBoolCallback):
        (WTF::GMainLoopSource::finishBoolCallback):
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::socketCallback):
        (WTF::GMainLoopSource::voidSourceCallback):
        (WTF::GMainLoopSource::boolSourceCallback):
        (WTF::GMainLoopSource::socketSourceCallback):
        (WTF::GMainLoopSource::Context::destroySource):
        * wtf/glib/GMainLoopSource.h: Renamed from Source/WTF/wtf/gobject/GMainLoopSource.h.
        (WTF::GMainLoopSource::Context::operator=):
        * wtf/glib/GMutexLocker.h: Renamed from Source/WTF/wtf/gobject/GMutexLocker.h.
        (WTF::MutexWrapper<GMutex>::lock):
        (WTF::MutexWrapper<GMutex>::unlock):
        (WTF::MutexWrapper<GRecMutex>::lock):
        (WTF::MutexWrapper<GRecMutex>::unlock):
        (WTF::GMutexLocker::GMutexLocker):
        (WTF::GMutexLocker::~GMutexLocker):
        (WTF::GMutexLocker::lock):
        (WTF::GMutexLocker::unlock):
        * wtf/glib/GRefPtr.cpp: Renamed from Source/WTF/wtf/gobject/GRefPtr.cpp.
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/glib/GRefPtr.h: Renamed from Source/WTF/wtf/gobject/GRefPtr.h.
        (WTF::GRefPtr::GRefPtr):
        (WTF::GRefPtr::~GRefPtr):
        (WTF::GRefPtr::clear):
        (WTF::GRefPtr::outPtr):
        (WTF::GRefPtr::isHashTableDeletedValue):
        (WTF::GRefPtr::get):
        (WTF::GRefPtr::operator*):
        (WTF::GRefPtr::operator->):
        (WTF::GRefPtr::operator!):
        (WTF::GRefPtr::operator UnspecifiedBoolType):
        (WTF::GRefPtr::hashTableDeletedValue):
        (WTF::=):
        (WTF::GRefPtr<T>::swap):
        (WTF::swap):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::static_pointer_cast):
        (WTF::const_pointer_cast):
        (WTF::adoptGRef):
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/glib/GThreadSafeMainLoopSource.cpp: Renamed from Source/WTF/wtf/gobject/GThreadSafeMainLoopSource.cpp.
        (WTF::GThreadSafeMainLoopSource::GThreadSafeMainLoopSource):
        (WTF::GThreadSafeMainLoopSource::~GThreadSafeMainLoopSource):
        (WTF::GThreadSafeMainLoopSource::cancel):
        (WTF::GThreadSafeMainLoopSource::schedule):
        (WTF::GThreadSafeMainLoopSource::scheduleAfterDelay):
        (WTF::GThreadSafeMainLoopSource::prepareVoidCallback):
        (WTF::GThreadSafeMainLoopSource::finishVoidCallback):
        (WTF::GThreadSafeMainLoopSource::voidCallback):
        (WTF::GThreadSafeMainLoopSource::prepareBoolCallback):
        (WTF::GThreadSafeMainLoopSource::finishBoolCallback):
        (WTF::GThreadSafeMainLoopSource::boolCallback):
        * wtf/glib/GThreadSafeMainLoopSource.h: Renamed from Source/WTF/wtf/gobject/GThreadSafeMainLoopSource.h.
        * wtf/glib/GTypedefs.h: Renamed from Source/WTF/wtf/gobject/GTypedefs.h.
        * wtf/glib/GUniquePtr.h: Renamed from Source/WTF/wtf/gobject/GUniquePtr.h.
        (WTF::GPtrDeleter::operator()):
        (WTF::GUniqueOutPtr::GUniqueOutPtr):
        (WTF::GUniqueOutPtr::~GUniqueOutPtr):
        (WTF::GUniqueOutPtr::outPtr):
        (WTF::GUniqueOutPtr::release):
        (WTF::GUniqueOutPtr::operator*):
        (WTF::GUniqueOutPtr::operator->):
        (WTF::GUniqueOutPtr::get):
        (WTF::GUniqueOutPtr::operator!):
        (WTF::GUniqueOutPtr::operator UnspecifiedBoolType):
        (WTF::GUniqueOutPtr::reset):
        * wtf/glib/MainThreadGLib.cpp:
        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::create): Deleted.
        (WTF::GMainLoopSource::GMainLoopSource): Deleted.
        (WTF::GMainLoopSource::~GMainLoopSource): Deleted.
        (WTF::GMainLoopSource::isScheduled): Deleted.
        (WTF::GMainLoopSource::isActive): Deleted.
        (WTF::GMainLoopSource::cancel): Deleted.
        (WTF::GMainLoopSource::scheduleIdleSource): Deleted.
        (WTF::GMainLoopSource::schedule): Deleted.
        (WTF::GMainLoopSource::scheduleTimeoutSource): Deleted.
        (WTF::GMainLoopSource::scheduleAfterDelay): Deleted.
        (WTF::createMicrosecondsTimeoutSource): Deleted.
        (WTF::GMainLoopSource::scheduleAndDeleteOnDestroy): Deleted.
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy): Deleted.
        (WTF::GMainLoopSource::prepareVoidCallback): Deleted.
        (WTF::GMainLoopSource::finishVoidCallback): Deleted.
        (WTF::GMainLoopSource::voidCallback): Deleted.
        (WTF::GMainLoopSource::prepareBoolCallback): Deleted.
        (WTF::GMainLoopSource::finishBoolCallback): Deleted.
        (WTF::GMainLoopSource::boolCallback): Deleted.
        (WTF::GMainLoopSource::socketCallback): Deleted.
        (WTF::GMainLoopSource::voidSourceCallback): Deleted.
        (WTF::GMainLoopSource::boolSourceCallback): Deleted.
        (WTF::GMainLoopSource::socketSourceCallback): Deleted.
        (WTF::GMainLoopSource::Context::destroySource): Deleted.
        * wtf/gobject/GMainLoopSource.h:
        (WTF::GMainLoopSource::Context::operator=): Deleted.
        * wtf/gobject/GMutexLocker.h:
        (WTF::MutexWrapper<GMutex>::lock): Deleted.
        (WTF::MutexWrapper<GMutex>::unlock): Deleted.
        (WTF::MutexWrapper<GRecMutex>::lock): Deleted.
        (WTF::MutexWrapper<GRecMutex>::unlock): Deleted.
        (WTF::GMutexLocker::GMutexLocker): Deleted.
        (WTF::GMutexLocker::~GMutexLocker): Deleted.
        (WTF::GMutexLocker::lock): Deleted.
        (WTF::GMutexLocker::unlock): Deleted.
        * wtf/gobject/GRefPtr.cpp:
        (WTF::refGPtr): Deleted.
        (WTF::derefGPtr): Deleted.
        * wtf/gobject/GRefPtr.h:
        (WTF::GRefPtr::GRefPtr): Deleted.
        (WTF::GRefPtr::~GRefPtr): Deleted.
        (WTF::GRefPtr::clear): Deleted.
        (WTF::GRefPtr::outPtr): Deleted.
        (WTF::GRefPtr::isHashTableDeletedValue): Deleted.
        (WTF::GRefPtr::get): Deleted.
        (WTF::GRefPtr::operator*): Deleted.
        (WTF::GRefPtr::operator->): Deleted.
        (WTF::GRefPtr::operator!): Deleted.
        (WTF::GRefPtr::operator UnspecifiedBoolType): Deleted.
        (WTF::GRefPtr::hashTableDeletedValue): Deleted.
        (WTF::=): Deleted.
        (WTF::GRefPtr<T>::swap): Deleted.
        (WTF::swap): Deleted.
        (WTF::operator==): Deleted.
        (WTF::operator!=): Deleted.
        (WTF::static_pointer_cast): Deleted.
        (WTF::const_pointer_cast): Deleted.
        (WTF::adoptGRef): Deleted.
        (WTF::refGPtr): Deleted.
        (WTF::derefGPtr): Deleted.
        * wtf/gobject/GThreadSafeMainLoopSource.cpp:
        (WTF::GThreadSafeMainLoopSource::GThreadSafeMainLoopSource): Deleted.
        (WTF::GThreadSafeMainLoopSource::~GThreadSafeMainLoopSource): Deleted.
        (WTF::GThreadSafeMainLoopSource::cancel): Deleted.
        (WTF::GThreadSafeMainLoopSource::schedule): Deleted.
        (WTF::GThreadSafeMainLoopSource::scheduleAfterDelay): Deleted.
        (WTF::GThreadSafeMainLoopSource::prepareVoidCallback): Deleted.
        (WTF::GThreadSafeMainLoopSource::finishVoidCallback): Deleted.
        (WTF::GThreadSafeMainLoopSource::voidCallback): Deleted.
        (WTF::GThreadSafeMainLoopSource::prepareBoolCallback): Deleted.
        (WTF::GThreadSafeMainLoopSource::finishBoolCallback): Deleted.
        (WTF::GThreadSafeMainLoopSource::boolCallback): Deleted.
        * wtf/gobject/GUniquePtr.h:
        (WTF::GPtrDeleter::operator()): Deleted.
        (WTF::GUniqueOutPtr::GUniqueOutPtr): Deleted.
        (WTF::GUniqueOutPtr::~GUniqueOutPtr): Deleted.
        (WTF::GUniqueOutPtr::outPtr): Deleted.
        (WTF::GUniqueOutPtr::release): Deleted.
        (WTF::GUniqueOutPtr::operator*): Deleted.
        (WTF::GUniqueOutPtr::operator->): Deleted.
        (WTF::GUniqueOutPtr::get): Deleted.
        (WTF::GUniqueOutPtr::operator!): Deleted.
        (WTF::GUniqueOutPtr::operator UnspecifiedBoolType): Deleted.
        (WTF::GUniqueOutPtr::reset): Deleted.
        * wtf/gobject/GlibUtilities.cpp:
        (getCurrentExecutablePath): Deleted.

2015-06-10  Basile Clement  <basile_clement@apple.com>

        Unreviewed, fix an typo in unused template code.

        * wtf/TinyPtrSet.h:
        (WTF::TinyPtrSet::iterator::operator*): s/at(index)/at(m_index)/

2015-06-09  Csaba Osztrogonác  <ossy@webkit.org>

        [cmake] Fix the style issues in cmake project files
        https://bugs.webkit.org/show_bug.cgi?id=145755

        Reviewed by Darin Adler.

        * wtf/CMakeLists.txt:

2015-06-08  Alexey Proskuryakov  <ap@apple.com>

        Build fix.

        * wtf/TinyPtrSet.h: (WTF::TinyPtrSet::isEmpty): s/poointer/pointer/

2015-06-07  Filip Pizlo  <fpizlo@apple.com>

        The tiny set magic in StructureSet should be available in WTF
        https://bugs.webkit.org/show_bug.cgi?id=145722

        Reviewed by Geoffrey Garen.
        
        As the management of structure sets evolved in JSC, the StructureSet data structure grew
        increasingly smart. It's got some smart stuff for managing small sets of pointers. I
        wanted to take the generic logic out of JSC and put it into a reusable templatized class
        in WTF.
        
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/TinyPtrSet.h: Added.
        (WTF::TinyPtrSet::TinyPtrSet):
        (WTF::TinyPtrSet::operator=):
        (WTF::TinyPtrSet::~TinyPtrSet):
        (WTF::TinyPtrSet::clear):
        (WTF::TinyPtrSet::onlyEntry):
        (WTF::TinyPtrSet::isEmpty):
        (WTF::TinyPtrSet::add):
        (WTF::TinyPtrSet::remove):
        (WTF::TinyPtrSet::contains):
        (WTF::TinyPtrSet::merge):
        (WTF::TinyPtrSet::forEach):
        (WTF::TinyPtrSet::genericFilter):
        (WTF::TinyPtrSet::filter):
        (WTF::TinyPtrSet::exclude):
        (WTF::TinyPtrSet::isSubsetOf):
        (WTF::TinyPtrSet::isSupersetOf):
        (WTF::TinyPtrSet::overlaps):
        (WTF::TinyPtrSet::size):
        (WTF::TinyPtrSet::at):
        (WTF::TinyPtrSet::operator[]):
        (WTF::TinyPtrSet::last):
        (WTF::TinyPtrSet::iterator::iterator):
        (WTF::TinyPtrSet::iterator::operator*):
        (WTF::TinyPtrSet::iterator::operator++):
        (WTF::TinyPtrSet::iterator::operator==):
        (WTF::TinyPtrSet::iterator::operator!=):
        (WTF::TinyPtrSet::begin):
        (WTF::TinyPtrSet::end):
        (WTF::TinyPtrSet::operator==):
        (WTF::TinyPtrSet::addOutOfLine):
        (WTF::TinyPtrSet::containsOutOfLine):
        (WTF::TinyPtrSet::copyFrom):
        (WTF::TinyPtrSet::copyFromOutOfLine):
        (WTF::TinyPtrSet::OutOfLineList::create):
        (WTF::TinyPtrSet::OutOfLineList::destroy):
        (WTF::TinyPtrSet::OutOfLineList::list):
        (WTF::TinyPtrSet::OutOfLineList::OutOfLineList):
        (WTF::TinyPtrSet::deleteListIfNecessary):
        (WTF::TinyPtrSet::isThin):
        (WTF::TinyPtrSet::pointer):
        (WTF::TinyPtrSet::singleEntry):
        (WTF::TinyPtrSet::list):
        (WTF::TinyPtrSet::set):
        (WTF::TinyPtrSet::setEmpty):
        (WTF::TinyPtrSet::getReservedFlag):
        (WTF::TinyPtrSet::setReservedFlag):

2015-06-05  Chris Dumez  <cdumez@apple.com>

        [WK2][iOS] Limit the number of vnodes used by the WebContent processes
        https://bugs.webkit.org/show_bug.cgi?id=145672
        <rdar://problem/21126637>

        Reviewed by Antti Koivisto.

        * wtf/RefCounter.h:
        (WTF::RefCounter::value):

        Expose the actual refcount instead of a boolean value.

2015-06-05  Alex Christensen  <achristensen@webkit.org>

        [Web Timing] Use new SPI to enable data collection.
        https://bugs.webkit.org/show_bug.cgi?id=145650
        rdar://problem/21203358

        Reviewed by Chris Dumez.

        * wtf/Platform.h:
        Added HAVE_TIMINGDATAOPTIONS for platform and version dependent feature.

2015-06-05  Xabier Rodriguez Calvar  <calvaris@igalia.com> and Youenn Fablet <youenn.fablet@crf.canon.fr>

        [Streams API] ReadableStream should store callbacks as a Deque
        https://bugs.webkit.org/show_bug.cgi?id=145641

        Reviewed by Darin Adler.

        * wtf/Deque.h:
        (WTF::Deque::append): Adding not templated append method, forwarding to templated append method.

2015-06-02  Xabier Rodriguez Calvar  <calvaris@igalia.com> and Youenn Fablet <youenn.fablet@crf.canon.fr>

        [Streams API] Delegate ReadableStreamReader reference counting to ReadableStream
        https://bugs.webkit.org/show_bug.cgi?id=144907

        Reviewed by Darin Adler.

        * wtf/Vector.h:
        (WTF::Vector::append): Adding not templated append method, forwarding to ValueType templated append method.

2015-06-02  Yusuke Suzuki  <utatane.tea@gmail.com>

        Heap-use-after-free read of size 4 in JavaScriptCore: WTF::StringImpl::isSymbol() (StringImpl.h:496)
        https://bugs.webkit.org/show_bug.cgi?id=145532

        Reviewed by Geoffrey Garen.

        Return `RefPtr<AtomicStringImpl>` instead of `AtomicStringImpl*`.

        * wtf/text/AtomicStringImpl.cpp:
        (WTF::AtomicStringImpl::lookUpSlowCase):
        (WTF::AtomicStringImpl::lookUpInternal):
        * wtf/text/AtomicStringImpl.h:
        (WTF::AtomicStringImpl::lookUp):

2015-06-01  Anders Carlsson  <andersca@apple.com>

        Use xpc_connection_set_oneshot_instance where possible
        https://bugs.webkit.org/show_bug.cgi?id=145535
        rdar://problem/21109994

        Reviewed by Sam Weinig.

        Add SPI declaration.

        * wtf/spi/darwin/XPCSPI.h:

2015-05-29  Anders Carlsson  <andersca@apple.com>

        Missing #import of Platform.h in several WTF headers
        https://bugs.webkit.org/show_bug.cgi?id=145475
        rdar://problem/21161818

        Reviewed by Darin Adler.

        Add Platform.h #includes.

        * wtf/Assertions.h:
        * wtf/RetainPtr.h:

2015-05-29  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r184949.
        https://bugs.webkit.org/show_bug.cgi?id=145458

        Ends up generating worse code for HashTable move constructors
        (Requested by zdobersek on #webkit).

        Reverted changeset:

        "Clean up HashTable constructors"
        https://bugs.webkit.org/show_bug.cgi?id=145369
        http://trac.webkit.org/changeset/184949

2015-05-28  Gyuyoung Kim  <gyuyoung.kim@webkit.org>

        Purge PassRefPtr in StringConcatenate.h
        https://bugs.webkit.org/show_bug.cgi?id=145376

        Reviewed by Darin Adler.

        Replace PassRefPtr with RefPtr. Additionally use nullptr instead of 0.

        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeString):
        (WTF::makeString):

2015-05-28  Zan Dobersek  <zdobersek@igalia.com>

        Clean up HashTable constructors
        https://bugs.webkit.org/show_bug.cgi?id=145369

        Reviewed by Andreas Kling.

        Use nullptr to initialize pointer member variables in the HashTable
        default constructor. Copy and move constructors can use constructor
        delegation instead of replicating all member initializations. Move
        constructor should simply call HashTable::swap() instead of replicating
        all the swap operations.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):

2015-05-27  Alexey Proskuryakov  <ap@apple.com>

        [Mac] Fix clang static analyzer build
        https://bugs.webkit.org/show_bug.cgi?id=145426
        rdar://problem/20947408

        Reviewed by Dan Bernstein.

        * wtf/spi/darwin/XPCSPI.h: Correct declarations of xpc_retain and xpc_release.

2015-05-27  Dean Jackson  <dino@apple.com>

        img.currentSrc problem in strict mode with old picturefill
        https://bugs.webkit.org/show_bug.cgi?id=144095
        <rdar://problem/21087013>

        Reviewed by Simon Fraser.

        Add a PICTURE_SIZES flag.

        * wtf/FeatureDefines.h:

2015-05-26  Andreas Kling  <akling@apple.com>

        StringView should have find(StringView, start).
        <https://webkit.org/b/145351>

        Reviewed by Darin Adler.

        Move the class agnostic guts of StringImpl's find() implementation from StringImpl
        to StringCommon.h and templatize the code into a findCommon() helper.

        StringImpl::find() and StringView::find() now both call findCommon().

        * wtf/text/StringCommon.h:
        (WTF::findInner):
        (WTF::find):
        (WTF::findCommon):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::find):
        (WTF::findInner): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::find): Deleted.
        * wtf/text/StringView.cpp:
        (WTF::StringView::find):
        * wtf/text/StringView.h:


2015-05-26  Dan Bernstein  <mitz@apple.com>

        <rdar://problem/21104551> Update build settings

        Reviewed by Anders Carlsson.

        * Configurations/DebugRelease.xcconfig:

2015-05-23  Dan Bernstein  <mitz@apple.com>

        Remove unused definitions of WEBKIT_VERSION_MIN_REQUIRED
        https://bugs.webkit.org/show_bug.cgi?id=145345

        Reviewed by Sam Weinig.

        * Configurations/Base.xcconfig: Also changed to use $(inherited).

2015-05-23  Yusuke Suzuki  <utatane.tea@gmail.com>

        Introduce UniquedStringImpl and SymbolImpl to separate symbolic strings from AtomicStringImpl
        https://bugs.webkit.org/show_bug.cgi?id=144848

        Reviewed by Darin Adler.

        he current AtomicStringImpl accidentally means the symbol OR atomic StringImpl.
        t's not correct to its name and it's error prone.

        In this patch, we'll introduce/changes classes into WTF.

        1. UniquedStringImpl
        It's derived class from StringImpl. And it represents symbol || atomic StringImpl.

        2. SymbolImpl
        It's derived class from UniquedStringImpl. Only symbol strings can become this.
        It ensures the given StringImpl is symbol in compile time.

        3. AtomicStringImpl
        It's derived class from UniquedStringImpl. Only atomic (non-normal && non-symbol) strings can become this.
        It ensures the given StringImpl is atomic in compile time.

        And, in this time, I just accept UniqueStringImpl in AtomicString. As the result,
        1. Now AtomicStringImpl issue is fixed. Its SymbolImpl is separated and UniquedStringImpl is introduced.
        2. But AtomicString still have both symbol and atomic strings.
        This should be solved in the separated patch.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PrintStream.cpp:
        * wtf/PrintStream.h:
        (WTF::printInternal):
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):
        * wtf/text/AtomicStringImpl.h:
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::createSymbol):
        (WTF::StringImpl::createSymbolEmpty):
        * wtf/text/StringImpl.h:
        * wtf/text/SymbolImpl.h: Copied from Source/JavaScriptCore/runtime/PrivateName.h.
        * wtf/text/SymbolRegistry.cpp:
        (WTF::SymbolRegistry::symbolForKey):
        (WTF::SymbolRegistry::keyForSymbol):
        (WTF::SymbolRegistry::remove):
        * wtf/text/SymbolRegistry.h:
        * wtf/text/UniquedStringImpl.h: Copied from Source/JavaScriptCore/runtime/PrivateName.h.

2015-05-20  Zan Dobersek  <zdobersek@igalia.com>

        [GTK] Move MainThreadGtk, RunLoopGtk, WorkQueueGtk under Source/WTF/wtf/glib/
        https://bugs.webkit.org/show_bug.cgi?id=145117

        Reviewed by Csaba Osztrogonác.

        Move the MainThreadGtk, RunLoopGtk and WorkQueueGtk implementation files from
        Source/WTF/wtf/gtk/ to Source/WTF/wtf/glib/. These implementations are not
        GTK-specific and only depend on GLib, so they are renamed as well.

        There are other such implementations under Source/WTF/wtf/gobject/ (GObject
        is just a subset of GLib) that will be moved under the new directory in
        future patches.

        * wtf/PlatformGTK.cmake:
        * wtf/glib/MainThreadGLib.cpp: Renamed from Source/WTF/wtf/gtk/MainThreadGtk.cpp.
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        * wtf/glib/RunLoopGLib.cpp: Renamed from Source/WTF/wtf/gtk/RunLoopGtk.cpp.
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::run):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):
        * wtf/glib/WorkQueueGLib.cpp: Renamed from Source/WTF/wtf/gtk/WorkQueueGtk.cpp.
        (WTF::WorkQueue::platformInitialize):
        (WTF::WorkQueue::platformInvalidate):
        (WTF::WorkQueue::registerSocketEventHandler):
        (WTF::WorkQueue::unregisterSocketEventHandler):
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):

2015-05-19  Andreas Kling  <akling@apple.com>

        Give StringView a utf8() API.
        <https://webkit.org/b/145201>

        Reviewed by Anders Carlsson

        Added an LChar version of StringImpl::utf8ForCharacters() and use that to give
        StringView a utf8() API just like String has.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::utf8ForCharacters):
        * wtf/text/StringImpl.h:
        * wtf/text/StringView.cpp:
        (WTF::StringView::utf8):
        * wtf/text/StringView.h:

2015-05-19  Yusuke Suzuki  <utatane.tea@gmail.com>

        Move AtomicStringImpl table related operations from AtomicString to AtomicStringImpl
        https://bugs.webkit.org/show_bug.cgi?id=145109

        Reviewed by Darin Adler.

        Now AtomicStringImpl table operations are located in AtomicString.
        But they should be under AtomicStringImpl.
        This patch simply moves these operations to AtomicStringImpl.

        And this patch renames static AtomicString::find to static AtomicStringImpl::lookUp
        because it conflicts with AtomicStringImpl's member function name.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.vcxproj/copy-files.cmd:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::lower):
        (WTF::AtomicString::convertToASCIILowercase):
        (WTF::AtomicString::fromUTF8Internal):
        (WTF::AtomicStringTableLocker::AtomicStringTableLocker): Deleted.
        (WTF::stringTable): Deleted.
        (WTF::addToStringTable): Deleted.
        (WTF::CStringTranslator::hash): Deleted.
        (WTF::CStringTranslator::equal): Deleted.
        (WTF::CStringTranslator::translate): Deleted.
        (WTF::AtomicString::add): Deleted.
        (WTF::UCharBufferTranslator::hash): Deleted.
        (WTF::UCharBufferTranslator::equal): Deleted.
        (WTF::UCharBufferTranslator::translate): Deleted.
        (WTF::HashAndCharactersTranslator::hash): Deleted.
        (WTF::HashAndCharactersTranslator::equal): Deleted.
        (WTF::HashAndCharactersTranslator::translate): Deleted.
        (WTF::HashAndUTF8CharactersTranslator::hash): Deleted.
        (WTF::HashAndUTF8CharactersTranslator::equal): Deleted.
        (WTF::HashAndUTF8CharactersTranslator::translate): Deleted.
        (WTF::SubstringTranslator::translate): Deleted.
        (WTF::SubstringTranslator8::hash): Deleted.
        (WTF::SubstringTranslator8::equal): Deleted.
        (WTF::SubstringTranslator16::hash): Deleted.
        (WTF::SubstringTranslator16::equal): Deleted.
        (WTF::LCharBufferTranslator::hash): Deleted.
        (WTF::LCharBufferTranslator::equal): Deleted.
        (WTF::LCharBufferTranslator::translate): Deleted.
        (WTF::CharBufferFromLiteralDataTranslator::hash): Deleted.
        (WTF::CharBufferFromLiteralDataTranslator::equal): Deleted.
        (WTF::CharBufferFromLiteralDataTranslator::translate): Deleted.
        (WTF::AtomicString::addFromLiteralData): Deleted.
        (WTF::AtomicString::addSlowCase): Deleted.
        (WTF::AtomicString::remove): Deleted.
        (WTF::AtomicString::findSlowCase): Deleted.
        (WTF::AtomicString::findInternal): Deleted.
        (WTF::AtomicString::isInAtomicStringTable): Deleted.
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):
        (WTF::AtomicString::fromUTF8):
        (WTF::AtomicString::find): Deleted.
        (WTF::AtomicString::add): Deleted.
        (WTF::AtomicString::addWithStringTableProvider): Deleted.
        * wtf/text/AtomicStringImpl.cpp: Copied from Source/WTF/wtf/text/AtomicString.cpp.
        (WTF::AtomicStringTableLocker::AtomicStringTableLocker):
        (WTF::stringTable):
        (WTF::addToStringTable):
        (WTF::CStringTranslator::hash):
        (WTF::CStringTranslator::equal):
        (WTF::CStringTranslator::translate):
        (WTF::AtomicStringImpl::add):
        (WTF::UCharBufferTranslator::hash):
        (WTF::UCharBufferTranslator::equal):
        (WTF::UCharBufferTranslator::translate):
        (WTF::HashAndCharactersTranslator::hash):
        (WTF::HashAndCharactersTranslator::equal):
        (WTF::HashAndCharactersTranslator::translate):
        (WTF::HashAndUTF8CharactersTranslator::hash):
        (WTF::HashAndUTF8CharactersTranslator::equal):
        (WTF::HashAndUTF8CharactersTranslator::translate):
        (WTF::SubstringTranslator::translate):
        (WTF::SubstringTranslator8::hash):
        (WTF::SubstringTranslator8::equal):
        (WTF::SubstringTranslator16::hash):
        (WTF::SubstringTranslator16::equal):
        (WTF::LCharBufferTranslator::hash):
        (WTF::LCharBufferTranslator::equal):
        (WTF::LCharBufferTranslator::translate):
        (WTF::CharBufferFromLiteralDataTranslator::hash):
        (WTF::CharBufferFromLiteralDataTranslator::equal):
        (WTF::CharBufferFromLiteralDataTranslator::translate):
        (WTF::AtomicStringImpl::addLiteral):
        (WTF::AtomicStringImpl::addSlowCase):
        (WTF::AtomicStringImpl::remove):
        (WTF::AtomicStringImpl::lookUpSlowCase):
        (WTF::AtomicStringImpl::addUTF8):
        (WTF::AtomicStringImpl::lookUpInternal):
        (WTF::AtomicStringImpl::isInAtomicStringTable):
        * wtf/text/AtomicStringImpl.h:
        (WTF::AtomicStringImpl::lookUp):
        (WTF::AtomicStringImpl::add):
        (WTF::AtomicStringImpl::addWithStringTableProvider):
        (WTF::AtomicStringImpl::AtomicStringImpl): Deleted.
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:
        (WTF::String::String):
        * wtf/text/cf/AtomicStringCF.cpp:
        (WTF::AtomicString::add): Deleted.
        * wtf/text/cf/AtomicStringImplCF.cpp: Renamed from Source/WTF/wtf/text/cf/AtomicStringCF.cpp.
        (WTF::AtomicStringImpl::add):

2015-05-19  Ting-Wei Lan  <lantw44@gmail.com>

        [SOUP] Use st_birthtime to get creation time of files on systems support it
        https://bugs.webkit.org/show_bug.cgi?id=144989

        Reviewed by Carlos Garcia Campos.

        Define HAVE(STAT_BIRTHTIME) as 1 on operating systems supporting
        getting creation time of files using st_birthtime in stat.

        * wtf/Platform.h:

2015-05-19  Chris Dumez  <cdumez@apple.com>

        Mark static variables as const when possible
        https://bugs.webkit.org/show_bug.cgi?id=145161

        Reviewed by Andreas Kling.

        * wtf/dtoa.cpp:
        (WTF::pow5mult):

2015-05-19  Gyuyoung Kim  <gyuyoung.kim@webkit.org>

        [EFL] Remove unnecessary PLATFORM(EFL) macro in EFL specific files
        https://bugs.webkit.org/show_bug.cgi?id=145160

        Reviewed by Csaba Osztrogonác.

        * wtf/efl/EflTypedefs.h: Remove PLATFORM(EFL).
        * wtf/efl/UniquePtrEfl.h: ditto.

2015-05-18  Michael Catanzaro  <mcatanzaro@igalia.com>

        [CMake] Ignore warnings in system headers
        https://bugs.webkit.org/show_bug.cgi?id=144747

        Reviewed by Darin Adler.

        Separate include directories into WebKit project includes and system includes. Suppress all
        warnings from headers in system include directories using the SYSTEM argument to
        the include_directories command.

        * wtf/CMakeLists.txt:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:

2015-05-18  Myles C. Maxfield  <mmaxfield@apple.com>

        Addressing post-review comments on r184353
        https://bugs.webkit.org/show_bug.cgi?id=145146

        Reviewed by Benjamin Poulain.

        Create an overload for equalIgnoringASCIICase() for AtomicString and string literals.

        * wtf/text/AtomicString.h:
        (WTF::equalIgnoringASCIICase):

2015-05-18  Skachkov Alexandr  <gskachkov@gmail.com>

        [ES6] Arrow function syntax. Feature flag for arrow function
        https://bugs.webkit.org/show_bug.cgi?id=145108

        Reviewed by Ryosuke Niwa.

        Added feature flag ENABLE_ES6_ARROWFUNCTION_SYNTAX for arrow function

        * wtf/FeatureDefines.h:

2015-05-17  Benjamin Poulain  <benjamin@webkit.org>

        Do not use fastMallocGoodSize anywhere
        https://bugs.webkit.org/show_bug.cgi?id=145103

        Reviewed by Michael Saboff.

        It is silly we see fastMallocGoodSize in profiles, it does absolutely nothing.

        This patch keeps fastMallocGoodSize() around for older code linking
        with newer WebKit, but remove any use of it inside WebKit.

        * wtf/FastMalloc.cpp:
        (WTF::fastMallocGoodSize):
        * wtf/FastMalloc.h:
        * wtf/Vector.h:
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBufferBase::reallocateBuffer):

2015-05-15  Dan Bernstein  <mitz@apple.com>

        Build fix for some versions of clang.

        * wtf/SaturatedArithmetic.h:
        (signedAddOverflows):
        (signedSubtractOverflows):

2015-05-14  Dan Bernstein  <mitz@apple.com>

        Reverted r177753, now that <rdar://problem/19347133> is fixed.

        Rubber-stamped by Benjamin Poulain.

        * wtf/SaturatedArithmetic.h:
        (signedAddOverflows):
        (signedSubtractOverflows):

2015-05-14  Myles C. Maxfield  <mmaxfield@apple.com>

        Add String literal overloads to equalIgnoringASCIICase()
        https://bugs.webkit.org/show_bug.cgi?id=145008

        Reviewed by Benjamin Poulain.

        Create an overload for equalIgnoringASCIICase for string literals.

        * wtf/text/StringImpl.h:
        (WTF::equalIgnoringASCIICase): Use a non-templated helper function.
        * wtf/text/StringImpl.cpp:
        (WTF::equalIgnoringASCIICase): Implement it.
        * wtf/text/StringView.h:
        (WTF::equalIgnoringASCIICase): Use a non-templated helper function.
        * wtf/text/StringView.cpp:
        (WTF::equalIgnoringASCIICase): Implement it.
        * wtf/text/WTFString.h:
        (WTF::equalIgnoringASCIICase): Delegate to StringImpl's implementation.

2015-05-14  Žan Doberšek  <zdobersek@igalia.com>

        [GTK] RunLoop constructor should properly retrieve or establish the thread-default GMainContext
        https://bugs.webkit.org/show_bug.cgi?id=144732

        Reviewed by Carlos Garcia Campos.

        RunLoop constructor in the GTK implementation should use the
        existing thread-default context, create a new one if not on
        the main thread, or use the global-default one if on the main
        thread.

        In RunLoop::run(), the GMainContext should then be pushed as
        the thread-default before calling g_main_loop_run(), and popped
        off when the main loop stops.

        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::run):

2015-05-13  Oliver Hunt  <oliver@apple.com>
       Ensure that all the smart pointer types in WTF clear their pointer before deref
       https://bugs.webkit.org/show_bug.cgi?id=143789

       Reviewed by Ryosuke Niwa.

       In order to prevent use after free bugs caused by destructors
       that end up trying to access the smart pointer itself, we should
       make sure we always clear the m_ptr field before calling deref.

       Essentially the UaF path is:
       struct Foo : RefCounted<Foo> {
         Wibble* m_wibble;
         void doSomething();
         ~Foo() { m_wibble->doSomethingLikeCleanup(); }
       };

       struct Wibble {
         void doSomethingLikeCleanup()
         {
           if (m_foo) {
               /* if this branch is not here we get a null deref */
               m_foo->doSomething();
           }
         }
         void replaceFoo(Foo* foo) { m_foo = foo; }
         RefPtr<Foo> m_foo;
       };

       Wibble* someWibble = /* a Wibble with m_foo->m_refCount == 1 */;
                            /* and m_foo points to someWibble       */;

       someWibble->replaceFoo(someOtherFoo);
       + someWibble->m_foo->m_ptr->deref();
         + someWibble->m_foo->m_ptr->~Foo()
           + someWibble->m_foo->m_ptr->m_wibble->doSomethingLikeCleanup()
             + someWibble->m_foo->m_ptr->m_wibble /* someWibble */ ->m_foo->m_ptr /*logically dead*/ ->doSomething()

       By clearing m_ptr first we either force a null pointer deref or
       we force our code down a path that does not use the dead smart
       pointer.

       * wtf/PassRefPtr.h:
       (WTF::PassRefPtr::~PassRefPtr):
       * wtf/Ref.h:
       (WTF::Ref::~Ref):
       (WTF::Ref::operator=):
       * wtf/RefPtr.h:
       (WTF::RefPtr::~RefPtr):
       * wtf/RetainPtr.h:
       (WTF::RetainPtr::~RetainPtr):
       (WTF::RetainPtr<T>::clear):

2015-05-12  Michael Saboff  <msaboff@apple.com>

        If JSC cannot get executable memory, it shouldn't call madvise
        https://bugs.webkit.org/show_bug.cgi?id=144931

        Reviewed by Mark Lam.

        Made calling madvise conditional on really getting mmapped memory.

        * wtf/OSAllocatorPosix.cpp:
        (WTF::OSAllocator::reserveUncommitted):

2015-05-11  Brent Fulgham  <bfulgham@apple.com>

        [Win] Move Windows build target to Windows 7 (or newer)
        https://bugs.webkit.org/show_bug.cgi?id=144890
        <rdar://problem/20707307>

        Reviewed by Anders Carlsson.

        Update linked SDK and minimal Windows level to be compatible with
        Windows 7 or newer.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTFGenerated.vcxproj:
        * config.h:

2015-05-11  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] WorkQueue objects are not released
        https://bugs.webkit.org/show_bug.cgi?id=144824

        Reviewed by Žan Doberšek.

        Do not keep a reference of the WorkQueue for the entire life of
        its worker thread, since every task scheduled on the WorkQueue
        already takes a reference. Instead, take a reference of the main
        loop to make sure that when the worker thread starts, the main
        loop hasn't been released to avoid runtime warnings (see
        webkit.org/b/140998). Also removed the g_main_context_pop_thread_default()
        from the thread body, since the thread-specific context queue will
        be freed anyway when the thread exits.
        If the WorkQueue is released early, before the thread has started,
        schedule a main loop quit in the context, to make sure it will
        be the first thing run by the main loop and the thread will exit.

        * wtf/WorkQueue.h: Remove unused event loop mutex.
        * wtf/gtk/WorkQueueGtk.cpp:
        (WTF::WorkQueue::platformInitialize):
        (WTF::WorkQueue::platformInvalidate):

2015-05-09  Yoav Weiss  <yoav@yoav.ws>

        Remove the PICTURE_SIZES build flag
        https://bugs.webkit.org/show_bug.cgi?id=144679

        Reviewed by Benjamin Poulain.

        Removed the PICTURE_SIZES build time flag.

        * wtf/FeatureDefines.h:

2015-05-08  Myles C. Maxfield  <mmaxfield@apple.com>

        Remove convenience constructors for TextRun
        https://bugs.webkit.org/show_bug.cgi?id=144752

        Reviewed by Anders Carlsson.

        No reason why StringView shouldn't have a StringImpl* constructor.

        Test: StringView8Bit in TestWebKitAPI

        * wtf/text/StringView.h: Add the constructor.

2015-05-08  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183996.
        https://bugs.webkit.org/show_bug.cgi?id=144806

        ASan detected use-after free (Requested by ap on #webkit).

        Reverted changeset:

        "Remove convenience constructors for TextRun"
        https://bugs.webkit.org/show_bug.cgi?id=144752
        http://trac.webkit.org/changeset/183996

2015-05-08  Myles C. Maxfield  <mmaxfield@apple.com>

        Remove convenience constructors for TextRun
        https://bugs.webkit.org/show_bug.cgi?id=144752

        Reviewed by Anders Carlsson.

        No reason why StringView shouldn't have a StringImpl* constructor.

        Test: StringView8Bit in TestWebKitAPI

        * wtf/text/StringView.h: Add the constructor.

2015-05-08  Andreas Kling  <akling@apple.com>

        Optimize serialization of quoted JSON strings.
        <https://webkit.org/b/144754>

        Reviewed by Darin Adler.

        Add a StringBuilder API for appending a quoted JSON string. This is used by
        JSON.stringify() to implement efficient appending of strings while escaping
        quotes, control characters and \uNNNN-style characters.

        The main benefit comes from only doing a single buffer expansion up front,
        instead of doing it every time we append something. The fudge factor is pretty
        large, since the maximum number of output characters per input character is 6.

        The first landing of this patch had two bugs in it:

        - Made \uNNNN escapes uppercase hexadecimal instead of lowercase.
        - Didn't preallocate enough space for 8-bit input strings.

        Both were caught by existing tests on our bots, and both were due to last-minute
        changes before landing. :/

        * wtf/text/StringBuilder.cpp:
        (WTF::appendQuotedJSONStringInternal):
        (WTF::StringBuilder::appendQuotedJSONString):
        * wtf/text/StringBuilder.h:

2015-05-07  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183961.
        https://bugs.webkit.org/show_bug.cgi?id=144784

        Broke js/dom/JSON-stringify.html (Requested by kling on
        #webkit).

        Reverted changeset:

        "Optimize serialization of quoted JSON strings."
        https://bugs.webkit.org/show_bug.cgi?id=144754
        http://trac.webkit.org/changeset/183961

2015-05-07  Andreas Kling  <akling@apple.com>

        Optimize serialization of quoted JSON strings.
        <https://webkit.org/b/144754>

        Reviewed by Darin Adler.

        Add a StringBuilder API for appending a quoted JSON string. This is used by
        JSON.stringify() to implement efficient appending of strings while escaping
        quotes, control characters and \uNNNN-style characters.

        The main benefit comes from only doing a single buffer expansion up front,
        instead of doing it every time we append something. The fudge factor is pretty
        large for 16-bit strings, since the maximum number of output characters per
        input character is 6.

        * wtf/text/StringBuilder.cpp:
        (WTF::appendQuotedJSONStringInternal):
        (WTF::StringBuilder::appendQuotedJSONString):
        * wtf/text/StringBuilder.h:

2015-05-07  Martin Robinson  <mrobinson@igalia.com>

        [GTK] All spell checking layout tests fail
        https://bugs.webkit.org/show_bug.cgi?id=144648

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: Activate UNIFIED_TEXT_CHECKING for GTK+.

2015-05-07  Dan Bernstein  <mitz@apple.com>

        <rdar://problem/19317140> [Xcode] Remove usage of AspenFamily.xcconfig in Source/
        https://bugs.webkit.org/show_bug.cgi?id=144727

        Reviewed by Darin Adler.

        * Configurations/Base.xcconfig: Don’t include AspenFamily.xcconfig, and define
        INSTALL_PATH_PREFIX and LD_DYLIB_INSTALL_NAME for the iOS 8.x Simulator.

2015-05-07  Žan Doberšek  <zdobersek@igalia.com>

        [GTK] Clean up RunLoop implementation
        https://bugs.webkit.org/show_bug.cgi?id=144729

        Reviewed by Carlos Garcia Campos.

        Clean up the RunLoop implementation for the GTK port,
        removing unnecessary methods and using simpler variable names.

        Nested GMainLoops in RunLoop::run() are now created for the
        RunLoop's GMainContext, and not for the default context (enforced
        through the null argument to g_main_loop_new()).

        * wtf/RunLoop.h:
        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::run):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::innermostLoop): Deleted.
        (WTF::RunLoop::pushNestedMainLoop): Deleted.
        (WTF::RunLoop::popNestedMainLoop): Deleted.

2015-05-05  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Async operations running in the WorkQueue thread should schedule their sources to the WorkQueue main lopp
        https://bugs.webkit.org/show_bug.cgi?id=144541

        Reviewed by Žan Doberšek.

        They are currently sent to the main thread run loop, because we
        are not setting the WorkQueue main context as the default one in
        the worker thread.

        * wtf/gtk/WorkQueueGtk.cpp:
        (WTF::WorkQueue::platformInitialize): Call
        g_main_context_push_thread_default() to set the WorkQueue main
        context as the default of the thread before running the main loop,
        and g_main_context_pop_thread_default() when the main loop quits.

2015-05-04  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183661.
        https://bugs.webkit.org/show_bug.cgi?id=144594

        Caused ~3.5MB regression on membuster(!) (Requested by kling_
        on #webkit).

        Reverted changeset:

        "Decrease minimum Vector size."
        https://bugs.webkit.org/show_bug.cgi?id=144453
        http://trac.webkit.org/changeset/183661

2015-05-04  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Remove Functional.h inclusions
        https://bugs.webkit.org/show_bug.cgi?id=144400

        Reviewed by Darin Adler.

        Remove most of the Functional.h header inclusions. The header is preserved
        since it's still used by older versions of Safari, and for the callOnMainThread()
        stub in DeprecatedSymbolsUsedBySafari.mm.

        * wtf/MainThread.cpp:
        * wtf/RunLoop.h:
        * wtf/WorkQueue.cpp:
        * wtf/WorkQueue.h:
        * wtf/efl/DispatchQueueEfl.h:
        * wtf/efl/DispatchQueueWorkItemEfl.h:

2015-05-02  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183722.
        https://bugs.webkit.org/show_bug.cgi?id=144534

        Made all the tests assert (Requested by ap on #webkit).

        Reverted changeset:

        "Generated static StringImpls should have static flag set."
        https://bugs.webkit.org/show_bug.cgi?id=144516
        http://trac.webkit.org/changeset/183722

2015-05-02  Andreas Kling  <akling@apple.com>

        Generated static StringImpls should have static flag set.
        <https://webkit.org/b/144516>

        Reviewed by Darin Adler.

        Discovered this while tracking down a string ref leak. Turns out that the strings
        generated by StaticString.pm were not getting the static flag set on them.

        The only practical difference from this AFAICT is that now the garbage collector
        will correctly see that these strings have no extra memory cost to worry about.

        * wtf/text/StringImpl.h:

2015-05-01  Martin Robinson  <mrobinson@igalia.com>

        USE(...) macro should expect unprefixed variables
        https://bugs.webkit.org/show_bug.cgi?id=144454

        Reviewed by Daniel Bates.

        * wtf/Assertions.cpp: Replace all occurrences WTF_USE with USE.
        * wtf/Platform.h: Replace all occurrences WTF_USE with USE. Modify the USE
        macro to look for unprefixed variables.
        * wtf/WTFThreadData.h: Replace all occurrences WTF_USE with USE.

2015-05-01  Joseph Pecoraro  <pecoraro@apple.com>

        Enable ENABLE_ES6_TEMPLATE_LITERAL_SYNTAX by default on all ports (Windows was missed)
        https://bugs.webkit.org/show_bug.cgi?id=144495

        Reviewed by Csaba Osztrogonác.

        * wtf/FeatureDefines.h:
        This covers all ports that haven't defined the flag otherwise.

2015-04-30  Alex Christensen  <achristensen@webkit.org>

        Decrease minimum Vector size.
        https://bugs.webkit.org/show_bug.cgi?id=144453

        Reviewed by Andreas Kling.

        * wtf/Vector.h:
        Make the default min size 4 to save memory on small Vectors.

2015-04-30  Yusuke Suzuki  <utatane.tea@gmail.com>

        Use the default hash value for Symbolized StringImpl
        https://bugs.webkit.org/show_bug.cgi?id=144347

        Reviewed by Darin Adler.

        Use a default hash value calculation for symbolized StringImpl.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createSymbol):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::symbolAwareHash):
        (WTF::StringImpl::existingSymbolAwareHash):
        (WTF::StringImpl::hashForSymbol):
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::nextHashForSymbol):
        (WTF::StringImpl::hashAndFlagsForSymbol): Deleted.

2015-04-29  Alexey Proskuryakov  <ap@apple.com>

        LazyNeverDestroyed is not thread safe in debug builds, causing assertions
        https://bugs.webkit.org/show_bug.cgi?id=144378

        Reviewed by Darin Adler.

        * wtf/NeverDestroyed.h:

2015-04-28  Geoffrey Garen  <ggaren@apple.com>

        It shouldn't take 1846 lines of code and 5 FIXMEs to sort an array.
        https://bugs.webkit.org/show_bug.cgi?id=144013

        Reviewed by Mark Lam.

        Remove this custom tree implementation because it is unused. (It was
        previously used to achieve a stable array sort in certain cases.)

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/AVLTree.h: Removed.
        * wtf/CMakeLists.txt:

2015-04-29  Myles C. Maxfield  <mmaxfield@apple.com>

        [OS X] Use CTFontCreateForCSS instead of doing font search ourselves
        https://bugs.webkit.org/show_bug.cgi?id=132159

        Reviewed by Darin Adler.

        * wtf/Platform.h:

        Opt-in using ENABLE(PLATFORM_FONT_LOOKUP)

2015-04-29  Yusuke Suzuki  <utatane.tea@gmail.com>

        REGRESSION (r183373): ASSERT failed in wtf/SHA1.h
        https://bugs.webkit.org/show_bug.cgi?id=144257

        Reviewed by Darin Adler.

        * wtf/SHA1.h:
        (WTF::SHA1::addBytes):

2015-04-29  Martin Robinson  <mrobinson@igalia.com>

        [CMake] [GTK] Organize and clean up unused CMake variables
        https://bugs.webkit.org/show_bug.cgi?id=144364

        Reviewed by Gyuyoung Kim.

        * wtf/PlatformGTK.cmake: Add variables specific to this project.

2015-04-28  Michael Catanzaro  <mcatanzaro@igalia.com>

        Fully replace ENABLE_LLINT_C_LOOP with ENABLE_JIT
        https://bugs.webkit.org/show_bug.cgi?id=144304

        Reviewed by Geoffrey Garen.

        No longer check ENABLE_LLINT_C_LOOP to determine the value of ENABLE_JIT.

        * wtf/Platform.h:

2015-04-28  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183514.
        https://bugs.webkit.org/show_bug.cgi?id=144359

        It broke cloop test bots (Requested by mcatanzaro on #webkit).

        Reverted changeset:

        "Fully replace ENABLE_LLINT_C_LOOP with ENABLE_JIT"
        https://bugs.webkit.org/show_bug.cgi?id=144304
        http://trac.webkit.org/changeset/183514

2015-04-28  Michael Catanzaro  <mcatanzaro@igalia.com>

        Fully replace ENABLE_LLINT_C_LOOP with ENABLE_JIT
        https://bugs.webkit.org/show_bug.cgi?id=144304

        Reviewed by Geoffrey Garen.

        No longer check ENABLE_LLINT_C_LOOP to determine the value of ENABLE_JIT.

        * wtf/Platform.h:

2015-04-28  Alex Christensen  <achristensen@webkit.org>

        Properly reset deleted count when clearing HashTables.
        https://bugs.webkit.org/show_bug.cgi?id=144343

        Reviewed by Andreas Kling.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::clear):
        Reset m_deletedCount, which appears to have been forgotten.

2015-04-28  Alex Christensen  <achristensen@webkit.org>

        [Content Extensions] Use less memory for CombinedURLFilters.
        https://bugs.webkit.org/show_bug.cgi?id=144290

        Reviewed by Andreas Kling.

        * wtf/Forward.h:
        * wtf/Vector.h:
        Added a minCapacity template parameter to allow changing the minimum size of an 
        allocated buffer. The default minCapacity is kept at 16 unless otherwise specified 
        to have no change on existing code, but this could be changed later. A smaller 
        default minCapacity would use less memory with small Vectors but spend more time 
        copying when expanding to large Vectors.

2015-04-27  Brent Fulgham  <bfulgham@apple.com>

        [Win] Deactivate WebGL until Windows tests work properly
        https://bugs.webkit.org/show_bug.cgi?id=144291
        <rdar://problem/20707307>

        Reviewed by Zalan Bujtas.

        * wtf/FeatureDefines.h: Force WebGL off for Windows builds.

2015-04-27  Michael Catanzaro  <mcatanzaro@igalia.com>

        Rename WTF_USE_3D_GRAPHICS to ENABLE_GRAPHICS_CONTEXT_3D
        https://bugs.webkit.org/show_bug.cgi?id=144193

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2015-04-22  Martin Robinson  <mrobinson@igalia.com>

        [CMake] Autogenerate cmakeconfig.h.cmake
        https://bugs.webkit.org/show_bug.cgi?id=143997

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h: Move a GTK-specific setting from cmakeconfig.h to here.

2015-04-25  Martin Robinson  <mrobinson@igalia.com>

        Rename ENABLE_3D_RENDERING to ENABLE_3D_TRANSFORMS
        https://bugs.webkit.org/show_bug.cgi?id=144182

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h: Replace all instances of 3D_RENDERING with 3D_TRANSFORMS.

2015-04-24  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r183288.
        https://bugs.webkit.org/show_bug.cgi?id=144189

        Made js/sort-with-side-effecting-comparisons.html time out in
        debug builds (Requested by ap on #webkit).

        Reverted changeset:

        "It shouldn't take 1846 lines of code and 5 FIXMEs to sort an
        array."
        https://bugs.webkit.org/show_bug.cgi?id=144013
        http://trac.webkit.org/changeset/183288

2015-04-21  Geoffrey Garen  <ggaren@apple.com>

        It shouldn't take 1846 lines of code and 5 FIXMEs to sort an array.
        https://bugs.webkit.org/show_bug.cgi?id=144013

        Reviewed by Mark Lam.

        Remove this custom tree implementation because it is unused. (It was
        previously used to achieve a stable array sort in certain cases.)

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/AVLTree.h: Removed.
        * wtf/CMakeLists.txt:

2015-04-24  Darin Adler  <darin@apple.com>

        Convert OwnPtr and PassOwnPtr uses to std::unique_ptr
        https://bugs.webkit.org/show_bug.cgi?id=128007

        Reviewed by Anders Carlsson.

        * WTF.vcxproj/WTF.vcxproj: Removed OwnPtr source files.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/Forward.h: Removed OwnPtr and PassOwnPtr.
        * wtf/HashTraits.h: Ditto.

        * wtf/OwnPtr.h: Removed.
        * wtf/OwnPtrCommon.h: Removed.
        * wtf/PassOwnPtr.h: Removed.

        * wtf/SizeLimits.cpp: Removed OwnPtr.
        * wtf/VectorTraits.h: Removed OwnPtr specialization.

2015-04-23  Jer Noble  <jer.noble@apple.com>

        Disable HAVE_AVKIT on AppleTV
        https://bugs.webkit.org/show_bug.cgi?id=144142

        Reviewed by Dan Bernstein.

        * wtf/Platform.h:

2015-04-23  Alexey Proskuryakov  <ap@apple.com>

        [iOS] WebKit services should inherit environment variables for home
        https://bugs.webkit.org/show_bug.cgi?id=144078
        rdar://problem/20571678

        Reviewed by Dan Bernstein.

        * wtf/spi/darwin/XPCSPI.h: Added xpc_copy_bootstrap and xpc_dictionary_apply.

2015-04-23  Alexey Proskuryakov  <ap@apple.com>

        Undo the WTF part of the previous build fix, we don't use private headers in WTF.

        * WTF.xcodeproj/project.pbxproj:

2015-04-23  Alexey Proskuryakov  <ap@apple.com>

        Build fix.

        * WTF.xcodeproj/project.pbxproj: Make RAMSize.h a private header, now that it's used
        from outside WTF.

2015-04-23  Andreas Kling  <akling@apple.com>

        There should only be one way to get the system memory size.
        <https://webkit.org/b/144081>

        Reviewed by Antti Koivisto.

        Merge all the logic from other RAM size fetcher helpers into WTF's.

        Darwin ports now use host_info() instead of sysctl(), since that was the more common way
        of doing this.

        Also bumped the fallback answer from 128 MB to 512 MB to bring it closer to today's hardware.

        Finally, the number is rounded up to the next multiple of 128 MB, to avoid misunderstandings
        on some systems where the number returned by the kernel is slightly lower than the marketing
        number. Removed the "fudging" that was used in some places, since this fixes that cleanly.

        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize):

2015-04-22  Darin Adler  <darin@apple.com>

        Eliminate remaining uses of OwnPtr and PassOwnPtr in WebCore outside the editing and platform directories
        https://bugs.webkit.org/show_bug.cgi?id=143949

        Reviewed by Andreas Kling.

        * wtf/MathExtras.h:
        (wtf_ceil): Deleted. This was a workaround for a bug that was introduced in Leopard and
        fixed in Snow Leopard <rdar://problem/6286405>, so we don't need the workaround any more.

2015-04-22  Alexey Proskuryakov  <ap@apple.com>

        [Mac] In nightlies and local builds, WebKit services can get terminated under memory pressure
        https://bugs.webkit.org/show_bug.cgi?id=144052
        rdar://problem/19754404

        Build fix. Landing a forward declaration that should have been part of the original patch.

        * wtf/spi/darwin/XPCSPI.h:

2015-04-21  Chris Dumez  <cdumez@apple.com>

        Make Vector(const Vector<T, otherCapacity, otherOverflowBehaviour>&) constructor explicit
        https://bugs.webkit.org/show_bug.cgi?id=143970

        Reviewed by Darin Adler.

        Make Vector(const Vector<T, otherCapacity, otherOverflowBehaviour>&)
        constructor explicit as it copies the vector and it is easy to call it
        by mistake.

        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        * wtf/Vector.h:

2015-04-21  Darin Adler  <darin@apple.com>

        Remove some stray uses of OwnPtr and PassOwnPtr in WTF (outside of the template definitions and traits)
        https://bugs.webkit.org/show_bug.cgi?id=143944

        Reviewed by Andreas Kling.

        * wtf/FilePrintStream.h: Removed unneeded include.
        * wtf/HashTable.h: Fixed class template name in comment.
        * wtf/HashTraits.h: Removed unneeded forward declaration.
        * wtf/ListHashSet.h: Removed unneeded includes.
        * wtf/ThreadingWin.cpp: Removed unneeded includes.
        (WTF::wtfThreadEntryPoint): Changed code to use unique_ptr.
        (WTF::createThreadInternal): Changed code to use make_unique and release.
        * wtf/efl/RunLoopEfl.cpp: Removed unneeded includes.

2015-04-19  Darin Adler  <darin@apple.com>

        Update RefPtr documentation and deprecation
        https://bugs.webkit.org/show_bug.cgi?id=143936

        Reviewed by Andreas Kling.

        * WTF.vcxproj/WTF.vcxproj: Removed PassRef.h
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.

2015-04-17  Alexey Proskuryakov  <ap@apple.com>

        Use ASan poisoning to taint moved-out-of Refs
        https://bugs.webkit.org/show_bug.cgi?id=143894
        rdar://problem/19443723

        Reviewed by Darin Adler.

        * wtf/Ref.h: (WTF::Ref::~Ref):

2015-04-17  Alexey Proskuryakov  <ap@apple.com>

        Remove unused BoundsCheckedPointer
        https://bugs.webkit.org/show_bug.cgi?id=143896

        Reviewed by Geoffrey Garen.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BoundsCheckedPointer.h: Removed.
        * wtf/CMakeLists.txt:

2015-04-16  Yusuke Suzuki  <utatane.tea@gmail.com>

        [ES6] Implement Symbol.for and Symbol.keyFor
        https://bugs.webkit.org/show_bug.cgi?id=143404

        Reviewed by Geoffrey Garen.

        When we register symbolized StringImpl* into SymbolRegistry, symbolized StringImpl* is aware of that.
        And when destructing it, it removes its reference from SymbolRegistry as if atomic StringImpl do so with AtomicStringTable.
        While AtomicStringTable (in WebCore case) exists in thread local storage,
        SymbolRegistry exists per VM and StringImpl* has a reference to the registered SymbolRegistry.

        Since StringImpl has isSymbol etc. members, it's class is aware of Symbol use cases.
        So introduce SymbolRegistry in WTF layers as if AtomicStringTable.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::addSlowCase):
        (WTF::AtomicString::findSlowCase):
        (WTF::AtomicString::findInternal):
        (WTF::AtomicString::find): Deleted.
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::find):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::createSymbol):
        (WTF::StringImpl::createSymbolEmpty):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::extractFoldedStringInSymbol):
        (WTF::StringImpl::symbolRegistry):
        (WTF::StringImpl::createSymbolEmpty): Deleted.
        * wtf/text/SymbolRegistry.cpp: Copied from Source/JavaScriptCore/runtime/SymbolConstructor.h.
        (WTF::SymbolRegistry::~SymbolRegistry):
        (WTF::SymbolRegistry::symbolForKey):
        (WTF::SymbolRegistry::keyForSymbol):
        (WTF::SymbolRegistry::remove):
        * wtf/text/SymbolRegistry.h: Added.
        (WTF::SymbolRegistryKey::hash):
        (WTF::SymbolRegistryKey::impl):
        (WTF::SymbolRegistryKey::isHashTableDeletedValue):
        (WTF::SymbolRegistryKey::hashTableDeletedValue):
        (WTF::DefaultHash<SymbolRegistryKey>::Hash::hash):
        (WTF::DefaultHash<SymbolRegistryKey>::Hash::equal):
        (WTF::HashTraits<SymbolRegistryKey>::isEmptyValue):
        (WTF::SymbolRegistryKey::SymbolRegistryKey):

2015-04-16  Antti Koivisto  <antti@apple.com>

        Use CommonCrypto for SHA1 and MD5
        https://bugs.webkit.org/show_bug.cgi?id=143826

        Reviewed by Anders Carlsson.

        CommonCrypto SHA1 implementation is ~4x faster than the naive WTF one. Use it when available.

        These are covered by existing API tests.

        * wtf/MD5.cpp:
        (WTF::MD5::MD5):
        (WTF::MD5::addBytes):
        (WTF::MD5::checksum):
        * wtf/MD5.h:
        * wtf/SHA1.cpp:
        (WTF::SHA1::SHA1):
        (WTF::SHA1::addBytes):
        (WTF::SHA1::computeHash):

            Remove the side effect where computeHash resets the state. No one relies on it.

        (WTF::SHA1::hexDigest):
        (WTF::SHA1::computeHexDigest):
        * wtf/SHA1.h:

2015-04-16  Csaba Osztrogonác  <ossy@webkit.org>

        Remove the unnecessary WTF_CHANGES define
        https://bugs.webkit.org/show_bug.cgi?id=143825

        Reviewed by Andreas Kling.

        * config.h:

2015-04-15  Руслан Ижбулатов  <lrn1986@gmail.com>

        Harmonize binary semaphore ifdefs

        They should be either OS(WINDOWS) (in which case we'd need
        BinarySemaphoreWin.cpp, which is not shipped by WebKitGTK)
        or PLATFORM(WIN) (in which case Mutex/ThreadCondition-based
        implementation is used).

        This fixes errors like:
          CXX      Source/WTF/wtf/threads/libWTF_la-BinarySemaphore.lo
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp: In constructor 'WTF::BinarySemaphore::BinarySemaphore()':
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:34:7: error: class 'WTF::BinarySemaphore' does not have any field named 'm_isSet'
             : m_isSet(false)
               ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp: In member function 'void WTF::BinarySemaphore::signal()':
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:44:24: error: 'm_mutex' was not declared in this scope
             MutexLocker locker(m_mutex);
                                ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:46:5: error: 'm_isSet' was not declared in this scope
             m_isSet = true;
             ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:47:5: error: 'm_condition' was not declared in this scope
             m_condition.signal();
             ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp: In member function 'bool WTF::BinarySemaphore::wait(double)':
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:52:24: error: 'm_mutex' was not declared in this scope
             MutexLocker locker(m_mutex);
                                ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:55:13: error: 'm_isSet' was not declared in this scope
             while (!m_isSet) {
                     ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:56:21: error: 'm_condition' was not declared in this scope
                 timedOut = !m_condition.timedWait(m_mutex, absoluteTime);
                             ^
        ../webkitgtk-2.4.8/Source/WTF/wtf/threads/BinarySemaphore.cpp:62:5: error: 'm_isSet' was not declared in this scope
             m_isSet = false;
             ^
        GNUmakefile:52762: recipe for target 'Source/WTF/wtf/threads/libWTF_la-BinarySemaphore.lo' failed

        [W32] Inconsistent ifdefs in BinarySemaphore.h and BinarySemaphore.cpp
        https://bugs.webkit.org/show_bug.cgi?id=143756

        Reviewed by Darin Adler.

        * wtf/threads/BinarySemaphore.h:

2015-04-12  Michael Catanzaro  <mcatanzaro@igalia.com>

        Fix -Wparentheses warning with GCC 5 in SaturatedArithmetic.h
        https://bugs.webkit.org/show_bug.cgi?id=143457

        Reviewed by Benjamin Poulain.

        Tested by WTF.SaturatedArithmeticAddition and WTF.SaturatedArithmeticSubtraction.

        * wtf/SaturatedArithmetic.h:
        (signedAddOverflows): Use && instead of & to avoid triggering -Wparentheses in newer
        versions of GCC and Clang, and to improve the clarity of the function.
        (signedSubtractOverflows): Changed correspondingly, although there was no warning here.

2015-04-08  Sam Weinig  <sam@webkit.org>

        Allow LaunchServices to handle URLs on link navigations
        <rdar://problem/19446826>
        https://bugs.webkit.org/show_bug.cgi?id=143544

        Reviewed by Anders Carlsson.

        * wtf/Platform.h:
        Add HAVE macro for this functionality.

2015-04-09  Andy Estes  <aestes@apple.com>

        [Cocoa] Add a HAVE(AVKIT) and use it
        https://bugs.webkit.org/show_bug.cgi?id=143593

        Reviewed by David Kilzer.

        * wtf/Platform.h: Defined HAVE(AVKIT) to be true on all Cocoa platforms except Watch OS.

2015-04-09  Andy Estes  <aestes@apple.com>

        [Content Filtering] Add a HAVE(PARENTAL_CONTROLS) and use it
        https://bugs.webkit.org/show_bug.cgi?id=143559

        Reviewed by David Kilzer.

        Added PLATFORM(WATCHOS). Used PLATFORM() since Watch OS is just a variant of OS(IOS).
        Defined HAVE(PARENTAL_CONTROLS) to be true on all Cocoa platforms except Watch OS.

        * wtf/Platform.h:

2015-04-08  Alex Christensen  <achristensen@webkit.org> and Patrick Gansterer  <paroga@webkit.org>

        Add CMake build system for WinCairo port.
        https://bugs.webkit.org/show_bug.cgi?id=115944

        Reviewed by Chris Dumez.

        * wtf/FeatureDefines.h:
        * wtf/PlatformWin.cmake:

2015-04-05  Antti Koivisto  <antti@apple.com>

        Bloom filter should support longer hashes
        https://bugs.webkit.org/show_bug.cgi?id=143419

        Reviewed by Dan Bernstein.

        It currently supports 'unsigned' hash only which is inconvenient and doesn't have enough independent bits for larger filters.

        Support arbitrarily sized hashes of type std::array<uint8_t, hashSize> (like SHA1::Digest and MD5::Digest).

        * wtf/BloomFilter.h:
        (WTF::BloomFilter<keyBits>::keysFromHash):
        (WTF::BloomFilter<keyBits>::mayContain):
        (WTF::BloomFilter<keyBits>::add):

2015-04-03  Antti Koivisto  <antti@apple.com>

        Add non-counting Bloom filter implementation
        https://bugs.webkit.org/show_bug.cgi?id=143366

        Reviewed by Sam Weinig.

        Add a traditional single-bit-per-bucket Bloom filter in addition to the existing counting implementation.

        - rename BloomFilter -> CountingBloomFilter.
        - add a new basic BloomFilter type.
        - update some terminology to match http://en.wikipedia.org/wiki/Bloom_filter and modernize the code a bit.
        - add API tests.

        * wtf/BloomFilter.h:
        (WTF::BloomFilter::BloomFilter):
        (WTF::BloomFilter::add):

            Also support merging.

        (WTF::BloomFilter::mayContain):
        (WTF::BloomFilter::arrayIndex):
        (WTF::BloomFilter::bitMask):
        (WTF::BloomFilter<keyBits>::mayContain):
        (WTF::BloomFilter<keyBits>::add):
        (WTF::BloomFilter<keyBits>::isBitSet):
        (WTF::BloomFilter<keyBits>::setBit):
        (WTF::BloomFilter<keyBits>::clear):
        (WTF::CountingBloomFilter::CountingBloomFilter):
        (WTF::CountingBloomFilter::mayContain):
        (WTF::CountingBloomFilter::firstBucket):
        (WTF::CountingBloomFilter::secondBucket):
        (WTF::CountingBloomFilter<keyBits>::add):
        (WTF::CountingBloomFilter<keyBits>::remove):
        (WTF::CountingBloomFilter<keyBits>::clear):
        (WTF::CountingBloomFilter<keyBits>::likelyEmpty):
        (WTF::CountingBloomFilter<keyBits>::isClear):
        (WTF::BloomFilter::maximumCount): Deleted.
        (WTF::BloomFilter::firstSlot): Deleted.
        (WTF::BloomFilter::secondSlot): Deleted.
        (WTF::BloomFilter<keyBits>::remove): Deleted.
        (WTF::BloomFilter<keyBits>::likelyEmpty): Deleted.
        (WTF::BloomFilter<keyBits>::isClear): Deleted.

015-04-01  Antti Koivisto  <antti@apple.com>

        Value assignment operator of Optional should be stricter
        https://bugs.webkit.org/show_bug.cgi?id=143303

        Reviewed by Andreas Kling.

        struct Foo { mutable Optional<std::chrono::seconds> s; };
        Foo foo, foo2;
        foo = foo2;

        doesn't build because it tries to use wrong operator=.

        * wtf/Optional.h:

            Add enable_if test similar to std::experimental::optional.

2015-04-01  Alex Christensen  <achristensen@webkit.org>

        Progress towards CMake on Windows and Mac.
        https://bugs.webkit.org/show_bug.cgi?id=143293

        Reviewed by Filip Pizlo.

        * wtf/CMakeLists.txt:
        Don't use bmalloc on Windows yet.
        * wtf/FeatureDefines.h:
        Temporarily disabled WebGL on Windows CMake builds.
        * wtf/PlatformMac.cmake:
        Tell open source builders where to find unicode headers.

2015-03-31  Alexey Proskuryakov  <ap@apple.com>

        Fix the build after <http://trac.webkit.org/changeset/182205>.

        * wtf/text/StringImpl.h: (WTF::StringImpl::extractFoldedStringInSymbol):
        A function cannot be both exported and inline.

2015-03-31  Yusuke Suzuki  <utatane.tea@gmail.com>

        Clean up Identifier factories to clarify the meaning of StringImpl*
        https://bugs.webkit.org/show_bug.cgi?id=143146

        Reviewed by Filip Pizlo.

        Introduce StringKind into `StringImpl`. There's 3 kinds
        1. StringNormal (non-atomic, non-symbol)
        2. StringAtomic (atomic, non-symbol)
        3. StringSymbol (non-atomic, symbol)
        They are mutually exclusive.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::addSlowCase):
        (WTF::AtomicString::findSlowCase):
        When registering a string into AtomicStringTable,
        it should not be a symbol string
        because symbol and atomic types are mutually exclusive.
        When a symbol string comes, we extract an owner string
        from a symbol string by using `StringImpl::extractFoldedStringInSymbol()`.
        It always succeeds because a symbol (non empty) string
        is always BufferSubstring and has an owner string.
        Empty symbol string doesn't have an owner string.
        This case is filtered by `!string.length()` guard.
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::add):
        (WTF::AtomicString::addWithStringTableProvider):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::createSymbol):
        (WTF::StringImpl::createUnique): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::createSymbolEmpty):
        (WTF::StringImpl::flagIsAtomic):
        (WTF::StringImpl::flagIsSymbol):
        (WTF::StringImpl::maskStringKind):
        (WTF::StringImpl::stringKind):
        (WTF::StringImpl::isSymbol):
        (WTF::StringImpl::isAtomic):
        (WTF::StringImpl::setIsAtomic):
        (WTF::StringImpl::extractFoldedStringInSymbol):
        (WTF::StringImpl::createUniqueEmpty): Deleted.
        (WTF::StringImpl::flagIsUnique): Deleted.
        (WTF::StringImpl::isUnique): Deleted.
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::hashAndFlagsForSymbol):
        (WTF::StringImpl::hashAndFlagsForUnique): Deleted.

2015-03-30  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        [CMake][EFL] Remove redundant library link and include path
        https://bugs.webkit.org/show_bug.cgi?id=143221

        Reviewed by Csaba Osztrogonác.

        * wtf/PlatformEfl.cmake: Remove unnecessary library link and include path.

2015-03-27  Myles C. Maxfield  <mmaxfield@apple.com>

        Support building WTF on Windows without Cygwin
        https://bugs.webkit.org/show_bug.cgi?id=143084

        Reviewed by Brent Fulgham.

        Windows doesn't have "touch".

        * WTF.vcxproj/WTFGenerated.make:

2015-03-26  Alex Christensen  <achristensen@webkit.org>

        Progress towards CMake on Mac.
        https://bugs.webkit.org/show_bug.cgi?id=143112

        Reviewed by Chris Dumez.

        * wtf/PlatformMac.cmake:

2015-03-25  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, we have edited this file in 2015.

        * wtf/Platform.h:

2015-03-25  Filip Pizlo  <fpizlo@apple.com>

        Heap variables shouldn't end up in the stack frame
        https://bugs.webkit.org/show_bug.cgi?id=141174

        Reviewed by Geoffrey Garen.

        * wtf/FastBitVector.h:
        (WTF::FastBitVector::resize): Small change: don't resize if you don't have to resize.

2015-03-25  Filip Pizlo  <fpizlo@apple.com>

        Change Atomic methods from using the_wrong_naming_conventions to using theRightNamingConventions. Also make seq_cst the default.

        Rubber stamped by Geoffrey Garen.

        * wtf/Atomics.h:
        (WTF::Atomic::load):
        (WTF::Atomic::store):
        (WTF::Atomic::compareExchangeWeak):
        (WTF::Atomic::compareExchangeStrong):
        (WTF::Atomic::compare_exchange_weak): Deleted.
        (WTF::Atomic::compare_exchange_strong): Deleted.
        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::lock):
        * wtf/SpinLock.h:
        (WTF::SpinLockBase::lock):

2015-03-24  Beth Dakin  <bdakin@apple.com>

        Add events related to force click gesture
        https://bugs.webkit.org/show_bug.cgi?id=142836
        -and corresponding-
        rdar://problem/20210239

        Reviewed by Dean Jackson.

        New enable flag for the events.
        * wtf/FeatureDefines.h:

2015-03-23  Filip Pizlo  <fpizlo@apple.com>

        JSC should have a low-cost asynchronous disassembler
        https://bugs.webkit.org/show_bug.cgi?id=142997

        Reviewed by Mark Lam.

        * wtf/StringPrintStream.h:

2015-03-22  Benjamin Poulain  <benjamin@webkit.org>

        CSS Selectors: fix attribute case-insensitive matching of Contain and List
        https://bugs.webkit.org/show_bug.cgi?id=142932

        Reviewed by Darin Adler.

        Add some utility functions to the string classes to find substrings
        using ASCII case-insensitive comparisons.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::contains):
        Add the light version that only lock one register.

        (WTF::AtomicString::containsIgnoringASCIICase):
        (WTF::AtomicString::findIgnoringASCIICase):

        * wtf/text/StringCommon.h:
        (WTF::findIgnoringASCIICase):
        This is the common implementation used by StringView and StringImpl.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::findIgnoringASCIICase):
        * wtf/text/StringImpl.h:
        * wtf/text/StringView.cpp:
        (WTF::StringView::containsIgnoringASCIICase):
        (WTF::StringView::findIgnoringASCIICase):
        * wtf/text/StringView.h:
        * wtf/text/WTFString.h:
        (WTF::String::findIgnoringASCIICase):
        (WTF::String::contains):
        (WTF::String::containsIgnoringASCIICase):

2015-03-19  Andreas Kling  <akling@apple.com>

        DFGAllocator should use bmalloc's aligned allocator.
        <https://webkit.org/b/142871>

        Reviewed by Geoffrey Garen.

        Remove PageAllocationAligned since it has no more clients.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PageAllocationAligned.cpp: Removed.
        * wtf/PageAllocationAligned.h: Removed.

2015-03-18  Dhi Aurrahman  <diorahman@rockybars.com>

        Fix StringView misplaced implementations after r181525 and r181558
        https://bugs.webkit.org/show_bug.cgi?id=142772

        Reviewed by Darin Adler.

        Fix misplaced implementations in StringView::startsWithIgnoringASCIICase and 
        StringView::endsWith. 

        Add some tests in [1] to cover the StringView::startsWith, 
        StringView::startsWithIgnoringASCIICase, StringView::endsWith and 
        StringView::endsWithIgnoringASCIICase implementations.

        [1] Tools/TestWebKitAPI/Tests/WTF/StringView.cpp.

        * wtf/text/StringView.cpp:
        (WTF::StringView::startsWithIgnoringASCIICase):
        (WTF::StringView::endsWith):
        (WTF::StringView::endsWithIgnoringASCIICase):

2015-03-17  Michael Saboff  <msaboff@apple.com>

        Windows X86-64 should use the fixed executable allocator
        https://bugs.webkit.org/show_bug.cgi?id=142749

        Reviewed by Filip Pizlo.

        Set ENABLE_EXECUTABLE_ALLOCATOR_FIXED for Windows.
        Needed to export MetaAllocator::currentStatistics() for use in JavaScriptCore.

        * wtf/MetaAllocator.h:
        * wtf/Platform.h:

2015-03-16  Ryosuke Niwa  <rniwa@webkit.org>

        Enable ES6 classes by default
        https://bugs.webkit.org/show_bug.cgi?id=142774

        Reviewed by Gavin Barraclough.

        * wtf/FeatureDefines.h:

2015-03-16  Csaba Osztrogonác  <ossy@webkit.org>

        [ARM] Enable generating idiv instructions if it is supported
        https://bugs.webkit.org/show_bug.cgi?id=142725

        Reviewed by Michael Saboff.

        * wtf/Platform.h: Set HAVE_ARM_IDIV_INSTRUCTIONS based on GCC macro too.

2015-03-16  Benjamin Poulain  <benjamin@webkit.org>

        Fix StringView after r181525
        Unreviewed.

        Fix 2 silly mistakes I made in r181525.

        * wtf/text/StringView.cpp:
        (WTF::StringView::startsWith):
        (WTF::StringView::startsWithIgnoringASCIICase):
        (WTF::StringView::endsWith):
        (WTF::StringView::endsWithIgnoringASCIICase):
        The implementation was inside the #ifdef.

        * wtf/text/StringView.h:
        The symbols were not exported.

2015-03-16  Max Stepin  <maxstepin@gmail.com>

        Add APNG support
        https://bugs.webkit.org/show_bug.cgi?id=17022

        Reviewed by Carlos Garcia Campos.

        * wtf/FeatureDefines.h:

2015-03-15  Benjamin Poulain  <benjamin@webkit.org>

        CSS: fix the case-insensitive matching of the attribute selectors Begin, End and Hyphen
        https://bugs.webkit.org/show_bug.cgi?id=142715

        Reviewed by Brent Fulgham.

        Add the necessary infrastructure to test startsWith() and endsWith() with
        ASCII case-insentive comparisons.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::startsWith):
        (WTF::AtomicString::startsWithIgnoringASCIICase):
        (WTF::AtomicString::endsWith):
        (WTF::AtomicString::endsWithIgnoringASCIICase):

        * wtf/text/StringCommon.h:
        (WTF::loadUnaligned):
        (WTF::equal):
        I moved the low level equal() code from StringImpl to StringCommon
        since it is used by both StringImpl and StringView.

        (WTF::equalCommon):
        (WTF::equalIgnoringASCIICaseCommon):
        Ideally we should drop the "Common" part of the name but StringView
        wants this inline for some reason. I prefered keeping the current behavior
        since I don't know how StringView's matching performance was evaluated.

        (WTF::startsWith):
        (WTF::startsWithIgnoringASCIICase):
        (WTF::endsWith):
        (WTF::endsWithIgnoringASCIICase):
        Make all that code shared between StringView and Stringimpl.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::startsWith):
        (WTF::StringImpl::startsWithIgnoringASCIICase):
        (WTF::StringImpl::endsWith):
        (WTF::StringImpl::endsWithIgnoringASCIICase):
        (WTF::equal):
        (WTF::stringImplContentEqual): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::loadUnaligned): Deleted.
        (WTF::equal): Deleted.

        * wtf/text/StringView.cpp:
        (WTF::StringView::startsWith):
        (WTF::StringView::startsWithIgnoringASCIICase):
        (WTF::StringView::endsWith):
        (WTF::StringView::endsWithIgnoringASCIICase):
        * wtf/text/StringView.h:
        Since those are new, we can safely make them out-of-line and
        evaluate the inlining impact as needed.

        * wtf/text/WTFString.h:
        (WTF::String::startsWithIgnoringASCIICase):
        (WTF::String::endsWith):
        (WTF::String::endsWithIgnoringASCIICase):

2015-03-15  Benjamin Poulain  <bpoulain@apple.com>

        Change the exact attribute matching to be ASCII case-insensitive
        https://bugs.webkit.org/show_bug.cgi?id=142609

        Reviewed by Darin Adler.

        Add support for ASCII case insensitive comparisons to all the string
        classes.

        The new file StringCommon.h has the common algorithm to avoid repeating
        the same code with different types.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * wtf/ASCIICType.h:
        (WTF::toASCIILower):
        * wtf/CMakeLists.txt:
        * wtf/text/AtomicString.h:
        (WTF::equalIgnoringASCIICase):
        * wtf/text/StringCommon.h: Added.
        (WTF::equalIgnoringASCIICase):
        (WTF::equalIgnoringASCIICaseCommon):
        * wtf/text/StringImpl.cpp:
        (WTF::equalIgnoringASCIICase):
        (WTF::equalIgnoringASCIICaseNonNull):
        (WTF::StringImpl::utf8Impl):
        (WTF::StringImpl::defaultWritingDirection): Deleted.
        (WTF::StringImpl::adopt): Deleted.
        (WTF::StringImpl::sizeInBytes): Deleted.
        (WTF::putUTF8Triple): Deleted.
        (WTF::StringImpl::utf8): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::isSubString): Deleted.
        (WTF::find): Deleted.

2015-03-14  Michael Saboff  <msaboff@apple.com>

        Disable Yarr JIT for ARMv7k
        https://bugs.webkit.org/show_bug.cgi?id=142645

        Rubber stamped by Geoffrey Garen.

        Changed the setting of ENABLE_YARR_JIT to be predicated on ENABLED_JIT.

        * wtf/Platform.h:

2015-03-14  Michael Saboff  <msaboff@apple.com>

        ES6: Add binary and octal literal support
        https://bugs.webkit.org/show_bug.cgi?id=142681

        Reviewed by Ryosuke Niwa.

        * wtf/ASCIICType.h:
        (WTF::isASCIIBinaryDigit): New support function.
        (WTF::isASCIIOctalDigit): Updated to use logical and (&&) instead of binary and (&).

2015-03-13  Mark Lam  <mark.lam@apple.com>

        Replace TCSpinLock with a new WTF::SpinLock based on WTF::Atomic.
        <https://webkit.org/b/142674>

        Reviewed by Filip Pizlo.

        We no longer use TCMalloc in our code, and we now have C++11.  This replaces the
        TCMalloc_SpinLock with a new WTF::SpinLock based on WTF::Atomic (which is a
        wrapper around std::atomic).

        Note that there is a StaticSpinLock and a SpinLock:

        1. StaticSpinLock is an alias for SpinLockBase, and its initialization relies on
           static / global std:atomic being automatically initialized to 0 at compile time.
           Hence, StaticSpinLock should only be used for statics / globals (including
           static members of classes / structs).

        2. SpinLock is derived from SpinLockBase, and adds a default constructor to
           initialize its internal atomic value to 0.  Because SpinLock has a constructor,
           it cannot be used for statics / globals.  Objects that want to embed a spin
           lock as an instance field should use SpinLock so that it is initialized properly.
           std::atomic will not automatically initialize instance fields to 0.  Hence,
           StaticSpinLock will not work correctly as instance fields of a class / struct.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::~MetaAllocator):
        (WTF::MetaAllocator::MetaAllocator):
        * wtf/MetaAllocator.h:
        * wtf/SpinLock.h: Added.
        (WTF::SpinLockBase::lock):
        (WTF::SpinLockBase::unlock):
        (WTF::SpinLockBase::isLocked):
        (WTF::SpinLockBase::slowLock):
        (WTF::SpinLock::SpinLock):
        * wtf/TCSpinLock.h: Removed.
        * wtf/text/AtomicString.cpp:

2015-03-13  Mark Lam  <mark.lam@apple.com>

        Introduce WTF::Atomic to wrap std::atomic for a friendlier CAS.
        <https://webkit.org/b/142661>

        Reviewed by Filip Pizlo.

        The CAS functions provided by std::atomic takes a reference to the expected
        value and modifies it if the CAS fails.  However, in a lot of our CAS usage,
        we don't want the expected value to change.  The solution to this is to
        provide a WTF::Atomic struct that wraps std::atomic, and provide CAS
        methods that won't alter the expected value if the CAS fails.

        The method names in WTF::Atomic are chosen to be identical to those
        in std::atomic so that WTF::Atomic can be a simple drop in replacement
        for std::atomic.

        Also changed ByteSpinLock to use WTF::Atomic instead of std::atomic.

        * wtf/Atomics.h:
        (WTF::Atomic::load):
        (WTF::Atomic::store):
        (WTF::Atomic::compare_exchange_weak):
        (WTF::Atomic::compare_exchange_strong):
        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::ByteSpinLock):
        (WTF::ByteSpinLock::lock):

2015-03-12  Filip Pizlo  <fpizlo@apple.com>

        Bytecode liveness analysis should have more lambdas and fewer sets
        https://bugs.webkit.org/show_bug.cgi?id=142647

        Reviewed by Mark Lam.
        
        Add a method for iterating each set bit in a FastBitVector. Uses a functor as a callback since
        this allows for a more efficient algorithm.

        * wtf/FastBitVector.h:
        (WTF::FastBitVector::forEachSetBit):

2015-03-12  Michael Saboff  <msaboff@apple.com>

        Disable Yarr JIT for ARMv7k
        https://bugs.webkit.org/show_bug.cgi?id=142645

        Reviewed by Oliver Hunt.

        Make the setting of ENABLE_YARR_JIT match ENABLE_JIT for ARMv7k.

        * wtf/Platform.h:

2015-03-12  Mark Lam  <mark.lam@apple.com>

        Change WTF::ByteSpinLock to use std::atomic.
        <https://webkit.org/b/142644>

        Reviewed by Filip Pizlo.

        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::ByteSpinLock):
        (WTF::ByteSpinLock::lock):
        (WTF::ByteSpinLock::unlock):
        (WTF::ByteSpinLock::isHeld):

2015-03-12  Csaba Osztrogonác  <ossy@webkit.org>

        [ARM][Linux] GC sometimes stuck in an infinite loop if parallel GC is enabled
        https://bugs.webkit.org/show_bug.cgi?id=141290

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: Enable parallel GC after r181319.

2015-03-11  Myles C. Maxfield  <mmaxfield@apple.com>

        Use out-of-band messaging for RenderBox::firstLineBaseline() and RenderBox::inlineBlockBaseline()
        https://bugs.webkit.org/show_bug.cgi?id=142569

        Reviewed by David Hyatt.

        Provide a callback to Optional::valueOrCompute() which is evaluated only if necessary.

        * wtf/Optional.h:
        (WTF::Optional::valueOrCompute):

2015-03-10  Brent Fulgham  <bfulgham@apple.com>

        [Win] 17 different JSC tests started to fail in DST
        https://bugs.webkit.org/show_bug.cgi?id=142531

        Reviewed by Chris Dumez.

        The stock 'GetTimeZoneInformation' call does not always match the actual Daylight
        Savings calendar. This results in a period of time when these tests fail.

        If available, we should take advantage of the new 'GetTimeZoneInformationForYear',
        which accesses a dynamic calendar of DST dates, which is presumbably updated by
        Microsoft from year-to-year.

        * wtf/DateMath.cpp:
        (WTF::timeZoneInformationForYearFunction): New function to conditionally access
        some Vista (and newer) functionality.
        (WTF::calculateUTCOffset): Call new function (if available) to calculate proper UTC
        time offset.

2015-03-10  Alex Christensen  <achristensen@webkit.org>

        Use unsigned for HashSet size.
        https://bugs.webkit.org/show_bug.cgi?id=142518

        Reviewed by Benjamin Poulain.

        * wtf/HashCountedSet.h:
        (WTF::Traits>::size):
        (WTF::Traits>::capacity):
        * wtf/HashMap.h:
        (WTF::X>::size):
        (WTF::X>::capacity):
        * wtf/HashSet.h:
        (WTF::V>::size):
        (WTF::V>::capacity):
        * wtf/HashTable.h:
        (WTF::HashTable::Stats::recordCollisionAtCount):
        (WTF::HashTable::Stats::dumpStats):
        (WTF::HashTable::size):
        (WTF::HashTable::capacity):
        (WTF::KeyTraits>::deallocateTable):
        (WTF::KeyTraits>::checkTableConsistencyExceptSize):
        * wtf/HashTraits.h:
        * wtf/ListHashSet.h:
        (WTF::U>::size):
        (WTF::U>::capacity):

2015-03-10  Said Abou-Hallawa  <sabouhallawa@apple.com>

        Remove PassRefPtr from svg/properties classes.
        https://bugs.webkit.org/show_bug.cgi?id=142063.

        Reviewed by Darin Adler.

        * wtf/Ref.h:
        (WTF::static_reference_cast): Add a stat_cast function to Ref<>.

2015-03-10  Mark Lam  <mark.lam@apple.com>

        [Win] JSC Build Warnings Need to be Resolved.
        <https://webkit.org/b/142366>

        Reviewed by Brent Fulgham.

        * wtf/Compiler.h:
        - MSVC also does not have the CONSIDERS_UNREACHABLE_CODE quirk.

2015-03-10  Geoffrey Garen  <ggaren@apple.com>

        bmalloc: tryFastMalloc shouldn't crash
        https://bugs.webkit.org/show_bug.cgi?id=142443

        Reviewed by Sam Weinig.

        Rolling back in r181307 with a check for whether bmalloc is enabled, to
        avoid crashes when running with ASan and GuardMalloc.

        * wtf/FastMalloc.cpp:
        (WTF::fastMalloc):
        (WTF::fastRealloc):
        (WTF::fastAlignedMalloc):
        (WTF::tryFastMalloc):
        (WTF::tryFastRealloc): Deleted.
        * wtf/FastMalloc.h:

2015-03-10  Michael Catanzaro  <mcatanzaro@igalia.com>

        GCC: CRASH() should be annotated with NORETURN
        https://bugs.webkit.org/show_bug.cgi?id=142524

        Reviewed by Anders Carlsson.

        Add COMPILER(GCC) to #ifdefs that already exist for Clang.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2015-03-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r181307.
        https://bugs.webkit.org/show_bug.cgi?id=142525

        Broke ASan tests (Requested by ap on #webkit).

        Reverted changeset:

        "bmalloc: tryFastMalloc shouldn't crash"
        https://bugs.webkit.org/show_bug.cgi?id=142443
        http://trac.webkit.org/changeset/181307

2015-03-09  Geoffrey Garen  <ggaren@apple.com>

        bmalloc: tryFastMalloc shouldn't crash
        https://bugs.webkit.org/show_bug.cgi?id=142443

        Reviewed by Darin Adler.

        * wtf/FastMalloc.cpp:
        (WTF::fastMalloc):
        (WTF::fastRealloc):
        (WTF::fastAlignedMalloc): Don't check for null. bmalloc automatically
        crashes on allocation failure, and we'd rather not pay for an extra check.

        (WTF::tryFastMalloc): Added an opt-out API to return null rather than
        crashing, since some clients need this.

        (WTF::tryFastRealloc): Deleted. Unused.

        * wtf/FastMalloc.h:

2015-03-09  Mark Lam  <mark.lam@apple.com>

        8-bit version of weakCompareAndSwap() can cause an infinite loop.
        https://webkit.org/b/142513>

        Reviewed by Filip Pizlo.

        Presently, Bitmap::concurrentTestAndSet() uses the 8-bit version of
        weakCompareAndSwap() (which compares and swaps an uint8_t value).
        Bitmap::concurrentTestAndSet() has a loop that checks if a bit in the
        byte of interest has been set.  If not, it will call the 8-bit CAS
        function to set the bit.

        Under the covers, for ARM, the 8-bit CAS function actually works with a
        32-bit CAS.  The 8-bit CAS will first fetch the 32-bit value in memory
        that should contain the 8-bit value, and check if it contains the
        expected byte.  If the value in memory doesn't have the expected byte,
        it will return early to its caller.  The expectation is that the caller
        will reload the byte from memory and call the 8-bit CAS again.

        Unfortunately, this code path that returns early does not have a
        compiler fence.  Without a compiler fence, the C++ compiler can
        optimize away the reloading of the expected byte value, leaving it
        unchanged.  As a result, we'll have a infinite loop here that checks a
        value that will never change, and the loop will not terminate until the
        value changes.

        The fix is to eliminate the early return check in the 8-bit CAS, and
        have it always call down to the 32-bit CAS.  The 32-bit CAS has a
        compiler fence which will prevent this issue.

        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):

2015-03-09  Martin Robinson  <mrobinson@igalia.com>

        [EFL] Move DispatchQueue to WTF
        https://bugs.webkit.org/show_bug.cgi?id=142493

        Reviewed by Csaba Osztrogonác.

        * wtf/PlatformEfl.cmake: Add DispatchQueue to the source list.
        * wtf/efl/DispatchQueueEfl.cpp: Renamed from Source/WebKit2/Platform/efl/DispatchQueueEfl.cpp.
        * wtf/efl/DispatchQueueEfl.h: Renamed from Source/WebKit2/Platform/efl/DispatchQueueEfl.h.
        * wtf/efl/DispatchQueueWorkItemEfl.h: Renamed from Source/WebKit2/Platform/efl/DispatchQueueWorkItemEfl.h.

2015-03-08  Brent Fulgham  <bfulgham@apple.com>

        [Win] WTF::WorkQueue does not balance ref/deref properly
        https://bugs.webkit.org/show_bug.cgi?id=142471

        Reviewed by Antti Koivisto.

        Make sure we deref the count when we execute a function in the
        WorkQueue.

        * wtf/win/WorkQueueWin.cpp:
        (WTF::WorkQueue::performWorkOnRegisteredWorkThread):

2015-03-07  Brent Fulgham  <bfulgham@apple.com>

        [Win] Revive WTF::WorkQueue on Windows
        https://bugs.webkit.org/show_bug.cgi?id=142432

        Reviewed by Darin Adler.

        Revive the Windows implementation of WTF::WorkQueue.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * wtf/WorkQueue.h:
        * wtf/win/WorkItemWin.cpp: Added.
        * wtf/win/WorkItemWin.h: Added.
        * wtf/win/WorkQueueWin.cpp: Added.

2015-03-06  Geoffrey Garen  <ggaren@apple.com>

        Fix crashes seen on the the Windows buildbots after my last patch.

        Unreviewed.

        * wtf/FastMalloc.cpp:
        (WTF::fastAlignedMalloc): Let's pass these arguments in the right order.

2015-03-06  Myles C. Maxfield  <mmaxfield@apple.com>

        Crash in -[WebCascadeList objectAtIndex:] + 195
        https://bugs.webkit.org/show_bug.cgi?id=141274

        Reviewed by David Kilzer.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrFactory::createWeakPtr): WebCascadeList uses a const FontCascade,
        and it calls createWeakPtr() on it. Therefore, createWeakPtr has to be marked
        const.
        (WTF::WeakPtrFactory::operator=): Removed because it was broken and had no
        callers

2015-03-06  Simon Fraser  <simon.fraser@apple.com>

        Allow tree dumping functions to be used in release builds by switching a flag
        https://bugs.webkit.org/show_bug.cgi?id=142379

        Reviewed by Zalan Bujtas.

        There are various tree dumping functions that are useful for debugging, and sometimes
        you want to be able to use them in release builds. Currently they are surrounded by
        #ifndef NDEBUG. Change this to #if ENABLE(TREE_DEBUGGING), which is defined to 0 or 1
        in wtf/Platform.h

        * wtf/Platform.h:

2015-03-05  Chris Dumez  <cdumez@apple.com>

        Regression(r173761): ASSERTION FAILED: !is8Bit() in StringImpl::characters16()
        https://bugs.webkit.org/show_bug.cgi?id=142350

        Reviewed by Michael Saboff and Benjamin Poulain.

        Fix ASSERTION FAILED: !is8Bit() in StringImpl::characters16() from
        WTF::equalInner() after r173761. The code was incorrectly assuming that
        if stringImpl is 16-bit, then matchString is 16-bit too, which is not
        correct.

        Also rename WTFString::startsWith() / endsWith() taking an offset to
        hasInfixStartingAt() / hasInfixEndingAt() for clarity. It seems odd
        to call it startsWith even though it won't technically *start* with
        the pattern if the input offset is greater than zero.

        Also drop the caseSensitive argument as it is never used (always true
        at call sites.

        * wtf/text/StringImpl.cpp:
        (WTF::equalInner):
        (WTF::StringImpl::hasInfixStartingAt):
        (WTF::StringImpl::hasInfixEndingAt):
        (WTF::StringImpl::startsWith): Deleted.
        (WTF::StringImpl::endsWith): Deleted.
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:
        (WTF::String::hasInfixStartingAt):
        (WTF::String::hasInfixEndingAt):
        (WTF::String::startsWith): Deleted.
        (WTF::String::endsWith): Deleted.

2015-03-05  Chris Dumez  <cdumez@apple.com>

        NetworkCache efficacy logging is using too much CPU
        https://bugs.webkit.org/show_bug.cgi?id=142186
        <rdar://problem/19632080>

        Reviewed by Antti Koivisto.

        * wtf/HashMap.h:
        (WTF::copyToVector):
        Add copyToVector() utility function for HashMap that uses an std::pair<key, value>
        as element type.

        * wtf/text/WTFString.h:
        (WTF::StringCapture::StringCapture):
        (WTF::StringCapture::operator=):
        Add default constructor and assignment operator to StringCapture so that
        it can be used in a Vector.

2015-03-05  Antti Koivisto  <antti@apple.com>

        Support WorkQueue QOS classes on Mavericks
        https://bugs.webkit.org/show_bug.cgi?id=142328

        Reviewed by Anders Carlsson.

        "The priority of a dispatch queue is inherited from its target queue.  In order to
        change the priority of a queue created with dispatch_queue_create(), use the
        dispatch_get_global_queue() function to obtain a target queue of the desired prior-
        ity."

        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::targetQueueForQOSClass):
        (WTF::WorkQueue::platformInitialize):

2015-03-03  Anders Carlsson  <andersca@apple.com>

        Remove unused compression code
        https://bugs.webkit.org/show_bug.cgi?id=142237

        Reviewed by Geoffrey Garen.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Compression.cpp: Removed.
        * wtf/Compression.h: Removed.

2015-03-02  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        [WK2] Remove unnecessary create() factory functions.
        https://bugs.webkit.org/show_bug.cgi?id=142161

        Reviewed by Chris Dumez.

        We can replace some create() factory functions with std::make_unique(). Because
        it just returns new instance. Even some of those functions have used std::unique_ptr<>
        instead of std::make_unique<>. Fixed all.

        * wtf/efl/WorkQueueEfl.cpp:
        (WorkQueue::dispatch):

2015-03-02  Filip Pizlo  <fpizlo@apple.com>

        DFG compile time measurements should really report milliseconds
        https://bugs.webkit.org/show_bug.cgi?id=142209

        Reviewed by Benjamin Poulain.
        
        This bug was introduced because currentTimeMS() calls were converted to
        monotonicallyIncreasingTime() calls. Perhaps this bug would be less likely if there was a
        monotonicallyIncreasingTimeMS() function available, so this patch adds it.

        * wtf/CurrentTime.h:
        (WTF::monotonicallyIncreasingTimeMS):

2015-02-27  Darin Adler  <darin@apple.com>

        Remove unused PossiblyNull
        https://bugs.webkit.org/show_bug.cgi?id=142124

        Reviewed by Andreas Kling.

        * WTF.vcxproj/WTF.vcxproj: Removed the file.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.
        * wtf/PossiblyNull.h: Removed.

        * wtf/FastMalloc.h: Moved everything to the left.
        Moved member functions out of the TryMallocReturnValue class definition.
        (WTF::TryMallocReturnValue::operator PossiblyNull<T>): Deleted.
        (WTF::TryMallocReturnValue::getValue): Marked inline, changed to work
        only with pointer types, not arbitrary non-pointer types.

2015-02-26  Brent Fulgham  <bfulgham@apple.com>

        [Win] Make build logs more legible by reducing noise
        https://bugs.webkit.org/show_bug.cgi?id=142034

        Reviewed by Alexey Proskuryakov.

        Modify batch files, makefiles, and DOS commands to remove
        uninteresting/unhelpful output.

        * WTF.vcxproj/WTFGenerated.make:
        * WTF.vcxproj/WTFPreBuild.cmd:
        * WTF.vcxproj/copy-files.cmd:

2015-02-26  Landry Breuil  <landry@openbsd.org>

        Revert bug 19975, now that gcc 4.7 is required.
        https://bugs.webkit.org/show_bug.cgi?id=129927

        Reviewed by Andreas Kling.

        isfinite() and signbit() are provided by gcc's cmath header.

        * wtf/MathExtras.h:

2015-02-26  Csaba Osztrogonác  <ossy@webkit.org>

        UNREACHABLE_FOR_PLATFORM() should be release assert
        https://bugs.webkit.org/show_bug.cgi?id=141904

        Reviewed by Darin Adler.

        * wtf/Assertions.h:
        (UNREACHABLE_FOR_PLATFORM):

2015-02-25  Filip Pizlo  <fpizlo@apple.com>

        Enable concurrent JIT on GTK
        https://bugs.webkit.org/show_bug.cgi?id=142007

        Reviewed by Benjamin Poulain.

        Seems weird that GTK keeps it off. No good reason for that as far as I can tell.

        * wtf/Platform.h:

2015-02-23  Brent Fulgham  <bfulgham@apple.com>

        WTF::WeakPtr should rename 'forgot' to 'clear' and support nullptr assignment
        https://bugs.webkit.org/show_bug.cgi?id=141935

        Reviewed by Myles C. Maxfield.

        * wtf/WeakPtr.h:
        (WTF::WeakPtr::operator=): Added 'nullptr_t' overload.
        (WTF::WeakPtr::clear): Renamed from 'forget'
        (WTF::WeakPtr::forget): Deleted.

2015-02-23  Brent Fulgham  <bfulgham@apple.com>

        WTF::WeakPtr should have a 'forget' method
        https://bugs.webkit.org/show_bug.cgi?id=141923

        Reviewed by Myles C. Maxfield.

        * wtf/WeakPtr.h:
        (WTF::WeakPtr::forget): Added.

2015-02-20  Geoffrey Garen  <ggaren@apple.com>

        Remove TCMalloc
        https://bugs.webkit.org/show_bug.cgi?id=141844

        Reviewed by Andreas Kling.

        It's unused.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FastMalloc.cpp:
        (WTF::EntropySource<4>::value): Deleted.
        (WTF::EntropySource<8>::value): Deleted.
        (WTF::internalEntropyValue): Deleted.
        (WTF::freedObjectStartPoison): Deleted.
        (WTF::freedObjectEndPoison): Deleted.
        (WTF::ClassIndex): Deleted.
        (WTF::HardenedSLL::create): Deleted.
        (WTF::HardenedSLL::null): Deleted.
        (WTF::HardenedSLL::setValue): Deleted.
        (WTF::HardenedSLL::value): Deleted.
        (WTF::HardenedSLL::operator!): Deleted.
        (WTF::HardenedSLL::operator UnspecifiedBoolType): Deleted.
        (WTF::HardenedSLL::operator!=): Deleted.
        (WTF::HardenedSLL::operator==): Deleted.
        (WTF::LgFloor): Deleted.
        (WTF::SLL_Next): Deleted.
        (WTF::SLL_SetNext): Deleted.
        (WTF::SLL_Push): Deleted.
        (WTF::SLL_Pop): Deleted.
        (WTF::SLL_PopRange): Deleted.
        (WTF::SLL_PushRange): Deleted.
        (WTF::SizeClass): Deleted.
        (WTF::ByteSizeForClass): Deleted.
        (WTF::NumMoveSize): Deleted.
        (WTF::InitSizeClasses): Deleted.
        (WTF::MetaDataAlloc): Deleted.
        (WTF::PageHeapAllocator::Init): Deleted.
        (WTF::PageHeapAllocator::New): Deleted.
        (WTF::PageHeapAllocator::Delete): Deleted.
        (WTF::PageHeapAllocator::inuse): Deleted.
        (WTF::pages): Deleted.
        (WTF::AllocationSize): Deleted.
        (WTF::spanInitializerCookie): Deleted.
        (WTF::Span::next): Deleted.
        (WTF::Span::remoteNext): Deleted.
        (WTF::Span::prev): Deleted.
        (WTF::Span::setNext): Deleted.
        (WTF::Span::setPrev): Deleted.
        (WTF::Span::initCookie): Deleted.
        (WTF::Span::clearCookie): Deleted.
        (WTF::Span::isValid): Deleted.
        (WTF::Event): Deleted.
        (WTF::NewSpan): Deleted.
        (WTF::DeleteSpan): Deleted.
        (WTF::DLL_Init): Deleted.
        (WTF::DLL_Remove): Deleted.
        (WTF::DLL_IsEmpty): Deleted.
        (WTF::DLL_Length): Deleted.
        (WTF::DLL_Print): Deleted.
        (WTF::DLL_Prepend): Deleted.
        (WTF::TCMalloc_Central_FreeList::length): Deleted.
        (WTF::TCMalloc_Central_FreeList::tc_length): Deleted.
        (WTF::TCMalloc_Central_FreeList::enumerateFreeObjects): Deleted.
        (WTF::TCMalloc_Central_FreeList::entropy): Deleted.
        (WTF::FastMallocZone::goodSize): Deleted.
        (WTF::FastMallocZone::check): Deleted.
        (WTF::FastMallocZone::print): Deleted.
        (WTF::FastMallocZone::log): Deleted.
        (WTF::FastMallocZone::forceLock): Deleted.
        (WTF::FastMallocZone::forceUnlock): Deleted.
        (WTF::FastMallocZone::statistics): Deleted.
        (WTF::FastMallocZone::zoneValloc): Deleted.
        (WTF::FastMallocZone::zoneDestroy): Deleted.
        (WTF::MallocHook::record): Deleted.
        (WTF::MallocHook::recordAllocation): Deleted.
        (WTF::MallocHook::recordDeallocation): Deleted.
        (WTF::MallocHook::init): Deleted.
        (WTF::MallocHook::InvokeNewHook): Deleted.
        (WTF::MallocHook::InvokeDeleteHook): Deleted.
        (WTF::KernelSupportsTLS): Deleted.
        (WTF::CheckIfKernelSupportsTLS): Deleted.
        (WTF::TCMalloc_PageHeap::GetDescriptor): Deleted.
        (WTF::TCMalloc_PageHeap::GetDescriptorEnsureSafe): Deleted.
        (WTF::TCMalloc_PageHeap::SystemBytes): Deleted.
        (WTF::TCMalloc_PageHeap::FreeBytes): Deleted.
        (WTF::TCMalloc_PageHeap::GetSizeClassIfCached): Deleted.
        (WTF::TCMalloc_PageHeap::CacheSizeClass): Deleted.
        (WTF::TCMalloc_PageHeap::RecordSpan): Deleted.
        (WTF::TCMalloc_PageHeap::init): Deleted.
        (WTF::TCMalloc_PageHeap::initializeScavenger): Deleted.
        (WTF::TCMalloc_PageHeap::isScavengerSuspended): Deleted.
        (WTF::TCMalloc_PageHeap::scheduleScavenger): Deleted.
        (WTF::TCMalloc_PageHeap::rescheduleScavenger): Deleted.
        (WTF::TCMalloc_PageHeap::suspendScavenger): Deleted.
        (WTF::TCMalloc_PageHeap::scavengerTimerFired): Deleted.
        (WTF::TCMalloc_PageHeap::runScavengerThread): Deleted.
        (WTF::TCMalloc_PageHeap::signalScavenger): Deleted.
        (WTF::TCMalloc_PageHeap::scavenge): Deleted.
        (WTF::TCMalloc_PageHeap::shouldScavenge): Deleted.
        (WTF::TCMalloc_PageHeap::New): Deleted.
        (WTF::TCMalloc_PageHeap::AllocLarge): Deleted.
        (WTF::TCMalloc_PageHeap::Split): Deleted.
        (WTF::TCMalloc_PageHeap::Carve): Deleted.
        (WTF::mergeDecommittedStates): Deleted.
        (WTF::TCMalloc_PageHeap::Delete): Deleted.
        (WTF::TCMalloc_PageHeap::IncrementalScavenge): Deleted.
        (WTF::TCMalloc_PageHeap::RegisterSizeClass): Deleted.
        (WTF::TCMalloc_PageHeap::ReturnedBytes): Deleted.
        (WTF::PagesToMB): Deleted.
        (WTF::TCMalloc_PageHeap::Dump): Deleted.
        (WTF::TCMalloc_PageHeap::GrowHeap): Deleted.
        (WTF::TCMalloc_PageHeap::Check): Deleted.
        (WTF::TCMalloc_PageHeap::CheckList): Deleted.
        (WTF::TCMalloc_PageHeap::ReleaseFreeList): Deleted.
        (WTF::TCMalloc_PageHeap::ReleaseFreePages): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::Init): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::length): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::empty): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::lowwatermark): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::clear_lowwatermark): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::Push): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::PushRange): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::PopRange): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::Pop): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::Validate): Deleted.
        (WTF::TCMalloc_ThreadCache_FreeList::enumerateFreeObjects): Deleted.
        (WTF::TCMalloc_ThreadCache::freelist_length): Deleted.
        (WTF::TCMalloc_ThreadCache::Size): Deleted.
        (WTF::TCMalloc_ThreadCache::enumerateFreeObjects): Deleted.
        (WTF::getPageHeap): Deleted.
        (WTF::fastMallocGoodSize): Deleted.
        (WTF::TCMalloc_PageHeap::periodicScavenge): Deleted.
        (WTF::TCMalloc_PageHeap::scavengerThread): Deleted.
        (WTF::setThreadHeap): Deleted.
        (WTF::TCMalloc_Central_FreeList::Init): Deleted.
        (WTF::TCMalloc_Central_FreeList::ReleaseListToSpans): Deleted.
        (WTF::TCMalloc_Central_FreeList::ReleaseToSpans): Deleted.
        (WTF::TCMalloc_Central_FreeList::EvictRandomSizeClass): Deleted.
        (WTF::TCMalloc_Central_FreeList::MakeCacheSpace): Deleted.
        (WTF::TCMalloc_Central_FreeList::ShrinkCache): Deleted.
        (WTF::TCMalloc_Central_FreeList::InsertRange): Deleted.
        (WTF::TCMalloc_Central_FreeList::RemoveRange): Deleted.
        (WTF::TCMalloc_Central_FreeList::FetchFromSpansSafe): Deleted.
        (WTF::TCMalloc_Central_FreeList::FetchFromSpans): Deleted.
        (WTF::TCMalloc_Central_FreeList::Populate): Deleted.
        (WTF::TCMalloc_ThreadCache::SampleAllocation): Deleted.
        (WTF::TCMalloc_ThreadCache::Init): Deleted.
        (WTF::TCMalloc_ThreadCache::Cleanup): Deleted.
        (WTF::TCMalloc_ThreadCache::Allocate): Deleted.
        (WTF::TCMalloc_ThreadCache::Deallocate): Deleted.
        (WTF::TCMalloc_ThreadCache::FetchFromCentralCache): Deleted.
        (WTF::TCMalloc_ThreadCache::ReleaseToCentralCache): Deleted.
        (WTF::TCMalloc_ThreadCache::Scavenge): Deleted.
        (WTF::TCMalloc_ThreadCache::PickNextSample): Deleted.
        (WTF::TCMalloc_ThreadCache::InitModule): Deleted.
        (WTF::TCMalloc_ThreadCache::NewHeap): Deleted.
        (WTF::TCMalloc_ThreadCache::GetThreadHeap): Deleted.
        (WTF::TCMalloc_ThreadCache::GetCache): Deleted.
        (WTF::TCMalloc_ThreadCache::GetCacheIfPresent): Deleted.
        (WTF::TCMalloc_ThreadCache::InitTSD): Deleted.
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary): Deleted.
        * wtf/TCPackedCache.h: Removed.
        * wtf/TCPageMap.h: Removed.
        * wtf/TCSystemAlloc.cpp: Removed.
        * wtf/TCSystemAlloc.h: Removed.

2015-02-20  Alexey Proskuryakov  <ap@apple.com>

        Remove svn:keywords property.

        As far as I can tell, the property had no effect on any of these files, but also,
        when it has effect it's likely harmful.

        * wtf/DecimalNumber.cpp: Removed property svn:keywords.
        * wtf/spi/darwin/XPCSPI.h: Removed property svn:keywords.

2015-02-20  Csaba Osztrogonác  <ossy@webkit.org>

        EFL URTBF

        * wtf/PlatformEfl.cmake:

2015-02-20  Simon Fraser  <simon.fraser@apple.com>

        RunLoop::dispatch() should drop the mutex before calling wakeUp().
        https://bugs.webkit.org/show_bug.cgi?id=141820

        Reviewed by Alexey Proskuryakov.
        
        RunLoop::wakeUp() calls into CoreFoundation which could take time,
        so scope the mutex just to protect m_functionQueue.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::dispatch):

2015-02-20  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        Unreviewed, EFL build fix since r180410.

        * wtf/PlatformEfl.cmake: Add WEBKIT2/Platform/efl path in order to include DispatchQueueEfl.h.

2015-02-20  Antti Koivisto  <antti@apple.com>

        Move WorkQueue from WK2 to WTF
        https://bugs.webkit.org/show_bug.cgi?id=141797

        Reviewed by Anders Carlsson.

        It may be useful in WebCore.

        Windows implementation is still missing.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformGTK.cmake:
        * wtf/WorkQueue.cpp: Copied from Source/WebKit2/Platform/WorkQueue.cpp.
        * wtf/WorkQueue.h: Copied from Source/WebKit2/Platform/WorkQueue.h.
        * wtf/cocoa: Added.
        * wtf/cocoa/WorkQueueCocoa.cpp: Copied from Source/WebKit2/Platform/mac/WorkQueueMac.cpp.
        * wtf/efl/WorkQueueEfl.cpp: Copied from Source/WebKit2/Platform/efl/WorkQueueEfl.cpp.
        * wtf/gtk/WorkQueueGtk.cpp: Copied from Source/WebKit2/Platform/gtk/WorkQueueGtk.cpp.

2015-02-13  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        [EFL] Enable bmalloc for EFL port 
        https://bugs.webkit.org/show_bug.cgi?id=141459

        Reviewed by Csaba Osztrogonác.

        * wtf/CMakeLists.txt: Remove TCSystemAlloc.cpp/h.
        * wtf/FastMalloc.cpp: Enable BMALLOC for EFL port.

2015-02-13  Anders Carlsson  <andersca@apple.com>

        Add a move constructor and move assignment operator to Deque
        https://bugs.webkit.org/show_bug.cgi?id=141571

        Reviewed by Andreas Kling.

        * wtf/Deque.h:
        (WTF::inlineCapacity>::Deque):
        (WTF::=): Deleted.

2015-02-13  Anders Carlsson  <andersca@apple.com>

        Add an initializer list constructor to Deque
        https://bugs.webkit.org/show_bug.cgi?id=141565

        Reviewed by Andreas Kling.

        * wtf/Deque.h:
        (WTF::inlineCapacity>::Deque):

2015-02-13  Anders Carlsson  <andersca@apple.com>

        Re-indent Deque.h

        Rubber-stamped by Antti Koivisto.

        * wtf/Deque.h:

2015-02-11  Brent Fulgham  <bfulgham@apple.com>

        [Win] [64-bit] Work around MSVC2013 Runtime Bug
        https://bugs.webkit.org/show_bug.cgi?id=141498
        <rdar://problem/19803642>

        Reviewed by Anders Carlsson.

        Disable FMA3 instruction use in the MSVC math library to
        work around a VS2013 runtime crash. We can remove this
        workaround when we switch to VS2015.

        * WTF.vcxproj/WTF.vcxproj: Add new files.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * wtf/win/WTFDLL.cpp: Added.

2015-02-11  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        [EFL][GTK] Use bmalloc instead of tcmalloc
        https://bugs.webkit.org/show_bug.cgi?id=140162

        Reviewed by Carlos Garcia Campos.

        * wtf/CMakeLists.txt:
        * wtf/FastMalloc.cpp:
            Enable bmalloc on GTK ports, but EFL port will enable it when bmalloc supports
            memory statistics.

2015-02-10  Darin Adler  <darin@apple.com>

        Add the crash-on-failure behavior to bmalloc-based fastMalloc
        https://bugs.webkit.org/show_bug.cgi?id=141434

        Reviewed by Alexey Proskuryakov.

        * wtf/FastMalloc.cpp: Removed unneeded includes.
        (WTF::fastMalloc): Added null check and CRASH.
        (WTF::fastCalloc): Added overflow checking, null check, and CRASH.
        (WTF::fastRealloc): Added null check and CRASH.
        (WTF::fastMallocSize): Added FIXME comment.
        (WTF::fastMallocGoodSize): Added FIXME comment.
        (WTF::fastAlignedMalloc): Added null check and CRASH.
        (WTF::tryFastMalloc): Changed to call bmalloc directly instead of
        calling fastMalloc, since fastMalloc will now crash on failure.
        (WTF::tryFastRealloc): Changed to call bmalloc directly instead of
        calling fastRealloc, since fastRealloc will now crash on failure.
        (WTF::tryFastCalloc): Added overflow checking.
        (WTF::fastMallocStatistics): Added FIXME comment.

2015-02-10  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] GMutexLocker build issue
        https://bugs.webkit.org/show_bug.cgi?id=141381

        Reviewed by Žan Doberšek.

        Remove using WTF::GMutexLocker from the header, since newer glib
        versions have a GMutexLocker in the public API.

        * wtf/gobject/GMutexLocker.h:

2015-02-09  Alexey Proskuryakov  <ap@apple.com>

        REGRESSION: tryFastCalloc is no longer "try"
        https://bugs.webkit.org/show_bug.cgi?id=141406

        Reviewed by Darin Adler.

        This causes crashes on some WebKit regression test bots.

        * wtf/FastMalloc.cpp: (WTF::tryFastCalloc): Fix what looks like a copy/paste mistake.

2015-02-07  Csaba Osztrogonác  <ossy@webkit.org>

        [ARM] GC sometimes stuck in an infinite loop if parallel GC is enabled
        https://bugs.webkit.org/show_bug.cgi?id=141290

        Reviewed by Anders Carlsson.

        * wtf/Platform.h:

2015-02-07  Chris Dumez  <cdumez@apple.com>

        Add Vector::removeFirstMatching() / removeAllMatching() methods taking lambda functions
        https://bugs.webkit.org/show_bug.cgi?id=141321

        Reviewed by Darin Adler.

        Add Vector::removeFirstMatching() / removeAllMatching() methods taking
        lambda functions to match the element(s) to remove. This simplifies the
        code a bit. Vector::removeAllMatching() is also more efficient than the
        manual removal alternative.

        * wtf/Vector.h:

2015-02-06  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r179743.
        https://bugs.webkit.org/show_bug.cgi?id=141335

        caused missing symbols in non-WebKit clients of WTF::Vector
        (Requested by kling on #webkit).

        Reverted changeset:

        "Remove WTF::fastMallocGoodSize()."
        https://bugs.webkit.org/show_bug.cgi?id=141020
        http://trac.webkit.org/changeset/179743

2015-02-06  Andreas Kling  <akling@apple.com>

        Remove WTF::fastMallocGoodSize().
        <https://webkit.org/b/141020>

        Reviewed by Anders Carlsson.

        bmalloc's good-size API just returns exactly whatever you pass it,
        so it's of no utility to us anymore.

        This gets rid of a bunch of pointless out-of-line calls in Vector
        construction and growth.

        * wtf/Compression.cpp:
        (WTF::GenericCompressedData::create):
        * wtf/FastMalloc.cpp:
        (WTF::fastMallocGoodSize): Deleted.
        * wtf/FastMalloc.h:
        * wtf/Vector.h:
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBufferBase::reallocateBuffer):

2015-02-05  Youenn Fablet  <youenn.fablet@crf.canon.fr> and Xabier Rodriguez Calvar <calvaris@igalia.com>

        [Streams API] Implement a barebone ReadableStream interface
        https://bugs.webkit.org/show_bug.cgi?id=141045

        Reviewed by Benjamin Poulain.

        * wtf/FeatureDefines.h:

2015-02-04  Alexey Proskuryakov  <ap@apple.com>

        Optimized equal() functions in StringImpl.h are not ASan compatible
        https://bugs.webkit.org/show_bug.cgi?id=141258

        Reviewed by Daniel Bates.

        * wtf/text/StringImpl.h: (WTF::equal): Add custom implementations for ASan.

2015-02-04  Chris Dumez  <cdumez@apple.com>

        Add removeFirst(value) / removeAll(value) methods to WTF::Vector
        https://bugs.webkit.org/show_bug.cgi?id=141192

        Reviewed by Benjamin Poulain.

        Add removeFirst(value) / removeAll(value) convenience methods to
        WTF::Vector to reduce complexity a bit at call sites.

        I am planning to add overloads for these taking a lambda function for
        matching in a follow-up patch as well. I have seen quite a few
        Vector::remove(index) call sites that would benefit from it.

        * wtf/Vector.h:
        (WTF::OverflowHandler>::removeFirst):
        (WTF::OverflowHandler>::removeAll):

2015-02-02  Dhi Aurrahman  <diorahman@rockybars.com>

        Optimize matchesLangPseudoClass() of :lang()
        https://bugs.webkit.org/show_bug.cgi?id=140873

        Reviewed by Darin Adler.

        Add some basic equality comparison operators.

        * wtf/text/StringView.h:
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::equal):
        (WTF::equalIgnoringASCIICase):

2015-02-02  Geoffrey Garen  <ggaren@apple.com>

        Use FastMalloc (bmalloc) instead of BlockAllocator for GC pages
        https://bugs.webkit.org/show_bug.cgi?id=140900

        Reviewed by Mark Hahnenberg.

        Re-landing just the HandleBlock piece of this patch.

        * wtf/FastMalloc.cpp:
        (WTF::fastAlignedMalloc):
        (WTF::fastAlignedFree):
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        * wtf/FastMalloc.h:

2015-02-02  Daniel Bates  <dabates@apple.com>

        [iOS] ASSERTION FAILED: m_scriptExecutionContext->isContextThread() in ContextDestructionObserver::observeContext
        https://bugs.webkit.org/show_bug.cgi?id=141057
        <rdar://problem/19068790>

        Reviewed by Alexey Proskuryakov.

        * wtf/MainThread.h:
        * wtf/mac/MainThreadMac.mm:
        (WTF::callOnWebThreadOrDispatchAsyncOnMainThread): Added.

2015-01-31  Sam Weinig  <sam@webkit.org>

        Remove even more Mountain Lion support
        https://bugs.webkit.org/show_bug.cgi?id=141124

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:
        * wtf/Assertions.cpp:
        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2015-01-31  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r179426.
        https://bugs.webkit.org/show_bug.cgi?id=141119

        "caused a memory use regression" (Requested by Guest45 on
        #webkit).

        Reverted changeset:

        "Use FastMalloc (bmalloc) instead of BlockAllocator for GC
        pages"
        https://bugs.webkit.org/show_bug.cgi?id=140900
        http://trac.webkit.org/changeset/179426

2015-01-31  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r179408.
        https://bugs.webkit.org/show_bug.cgi?id=141117

        This didn't fully fix the issue (Requested by anttik on
        #webkit).

        Reverted changeset:

        "OSObjectPtr does not work with dispatch_data_t on Maverics"
        https://bugs.webkit.org/show_bug.cgi?id=141081
        http://trac.webkit.org/changeset/179408

2015-01-30  Yusuke Suzuki  <utatane.tea@gmail.com>

        Implement ES6 Symbol
        https://bugs.webkit.org/show_bug.cgi?id=140435

        Reviewed by Geoffrey Garen.

        Introduce new unique string mechanizm into StringImpl.
        It is used for implementing Symbol which holds a [[Description]] value.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::add):
        (WTF::AtomicString::addWithStringTableProvider):

        Previously, we checked `isAtomic()` or `!length()`. This guard can filter out EmptyUnique.
        But now, we introduced new unique StringImpl. Since it has an actual string value, we need to check `isUnique()`.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::createUnique):

        In createUnique, we leverage Substring mechanizm to produce a new unique
        string from an existing string.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::createUniqueEmpty):
        (WTF::StringImpl::flagIsUnique):
        (WTF::StringImpl::isUnique):
        (WTF::StringImpl::setIsAtomic):
        (WTF::StringImpl::createEmptyUnique): Deleted.
        (WTF::StringImpl::isEmptyUnique): Deleted.

        Instead of EmptyUnique, we introduced new flag to StringImpl, `isUnique`.
        While EmptyUnique cannot hold any string values except for empty string,
        the unique StringImpl can hold any String values.
        We fold the Symbol's descriptiveString value here.

        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::hashAndFlagsForUnique):
        (WTF::StringImpl::hashAndFlagsForEmptyUnique): Deleted.

2015-01-30  Geoffrey Garen  <ggaren@apple.com>

        Use FastMalloc (bmalloc) instead of BlockAllocator for GC pages
        https://bugs.webkit.org/show_bug.cgi?id=140900

        Reviewed by Mark Hahnenberg.

        Re-landing just the HandleBlock piece of this patch.

        * wtf/FastMalloc.cpp:
        (WTF::fastAlignedMalloc):
        (WTF::fastAlignedFree):
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        * wtf/FastMalloc.h:

2015-01-30  Namhoon Kim  <yanhkim@gmail.com>

        Call vsnprintf instead of _vsnprintf in vprintf_stderr_common
        https://bugs.webkit.org/show_bug.cgi?id=141078

        In windows _vsnprintf api does not place null character
        automatically. Simply replace it with vsnprintf. Which is
        polyfill to call wtf_vsnprintf in windows.

        Reviewed by Brent Fulgham.

        * wtf/Assertions.cpp:

2015-01-30  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: ASSERT in InspectorTimelineAgent::internalStop
        https://bugs.webkit.org/show_bug.cgi?id=141039

        Reviewed by Timothy Hatcher.

        Add messages to Stopwatch assertions, and clean up constructor.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::Stopwatch):
        (WTF::Stopwatch::start):
        (WTF::Stopwatch::stop):

2015-01-30  Chris Dumez  <cdumez@apple.com>

        Add match_constness<Reference, T> helper struct
        https://bugs.webkit.org/show_bug.cgi?id=140905

        Reviewed by Benjamin Poulain.

        Add match_constness<Reference, T> helper struct to simplify downcast<>()
        a bit. The purpose of this helper is to update T's constness to match
        Reference's.

        * wtf/TypeCasts.h:
        (WTF::downcast):

2015-01-30  Chris Dumez  <cdumez@apple.com>

        Add assertion in RefPtr's operator*() to make sure we don't dereference nullptr
        https://bugs.webkit.org/show_bug.cgi?id=141092

        Reviewed by Anders Carlsson.

        Add assertion in RefPtr's operator*() to make sure we don't dereference
        nullptr.

        * wtf/RefPtr.h:
        (WTF::RefPtr::operator*):

2015-01-30  Geoffrey Garen  <ggaren@apple.com>

        GC marking threads should clear malloc caches
        https://bugs.webkit.org/show_bug.cgi?id=141097

        Reviewed by Andreas Kling.

        Split the scavenging API into per-thread vs global, so that you can
        request to scavenge your own thread without scavenging the whole heap.

        * wtf/FastMalloc.cpp:
        (WTF::releaseFastMallocFreeMemoryForThisThread):
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        * wtf/FastMalloc.h:

2015-01-30  Antti Koivisto  <antti@apple.com>

        OSObjectPtr does not work with dispatch_data_t on Maverics
        https://bugs.webkit.org/show_bug.cgi?id=141081

        Reviewed by Pratik Solanki.
        
        Trying to use OSObjectPtr<dispatch_data_t> throws 
        
        -[OS_dispatch_data _xref_dispose]: unrecognized selector sent to instance 0

        * wtf/OSObjectPtr.h:
        (WTF::retainOSObject<dispatch_data_t>):
        (WTF::releaseOSObject<dispatch_data_t>):
        
            Add specialization for dispatch_data_t on Maverics.

2015-01-29  Santosh Mahto  <santoshbit2007@gmail.com>

        Refactor String::format to handle unreached va_end.
        https://bugs.webkit.org/show_bug.cgi?id=140938

        Reviewed by Alexey Proskuryakov.

        Now va_end is called for all platform after getting length
        of formatted string and again va_start/va_end is called to write
        formatted string in buffer. This way it ensure va_end is always
        reached for each va_start.

        * wtf/text/WTFString.cpp:

2015-01-29  Csaba Osztrogonác  <ossy@webkit.org>

        Move HAVE_DTRACE definition back to Platform.h
        https://bugs.webkit.org/show_bug.cgi?id=141033

        Reviewed by Dan Bernstein.

        * wtf/Platform.h:

2015-01-28  Namhoon Kim  <namkim@ea.com>

        Windows return -1 when calling vsnprintf with arguments that exceed target buffer size
        https://bugs.webkit.org/show_bug.cgi?id=140917

        Reviewed by Brent Fulgham.

        Fix return value of vsnprintf when windows API return -1 to denote
        requested buffer exceeded. Replace return value by calling vscprintf.

        * wtf/StringExtras.h:
        (snprintf): Fix return value by calling vscprintf when buffer exceeded.
        (wtf_vsnprintf): Ditto.

2015-01-28  Geoffrey Garen  <ggaren@apple.com>

        Removed fastMallocForbid / fastMallocAllow
        https://bugs.webkit.org/show_bug.cgi?id=141012

        Reviewed by Mark Hahnenberg.

        Removed the forbid / allow API because it is no longer used.

        * wtf/FastMalloc.cpp:
        (WTF::tryFastMalloc):
        (WTF::fastMalloc):
        (WTF::tryFastCalloc):
        (WTF::fastCalloc):
        (WTF::fastFree):
        (WTF::tryFastRealloc):
        (WTF::fastRealloc):
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        (WTF::isForbidden): Deleted.
        (WTF::fastMallocForbid): Deleted.
        (WTF::fastMallocAllow): Deleted.
        (WTF::initializeIsForbiddenKey): Deleted.
        * wtf/FastMalloc.h:

2015-01-28  Dana Burkart  <dburkart@apple.com>

        Move ASan flag settings from DebugRelease.xcconfig to Base.xcconfig
        https://bugs.webkit.org/show_bug.cgi?id=136765

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2015-01-28  Darin Adler  <darin@apple.com>

        Fix small leak in Collator
        https://bugs.webkit.org/show_bug.cgi?id=140990

        Reviewed by Andreas Kling.

        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::Collator::Collator): Use fastStrDup instead of strdup.
        (WTF::Collator::~Collator): Use fastFree on the collator locale that we
        are abandoning. The old code instead just called free on a null pointer.

2015-01-27  Geoffrey Garen  <ggaren@apple.com>

        Removed WTF_MALLOC_VALIDATION
        https://bugs.webkit.org/show_bug.cgi?id=140958

        Reviewed by Anders Carlsson.

        I don't think anyone has been using this, and the #ifdefs were driving
        me crazy.

        We have other options for validation -- like MallocGuardEdges,
        MallocCheckHeapEach, MallocScribble, and GuardMalloc.

        * wtf/FastMalloc.cpp:
        (WTF::tryFastMalloc):
        (WTF::fastMalloc):
        (WTF::tryFastCalloc):
        (WTF::fastCalloc):
        (WTF::fastFree):
        (WTF::tryFastRealloc):
        (WTF::fastRealloc):
        (WTF::fastMallocSize):
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        (WTF::Internal::fastMallocMatchFailed): Deleted.
        * wtf/FastMalloc.h:
        (WTF::Internal::fastMallocValidationHeader): Deleted.
        (WTF::Internal::fastMallocValidationSuffix): Deleted.
        (WTF::Internal::fastMallocMatchValidationType): Deleted.
        (WTF::Internal::setFastMallocMatchValidationType): Deleted.
        (WTF::fastMallocMatchValidateMalloc): Deleted.
        (WTF::fastMallocMatchValidateFree): Deleted.
        (WTF::fastMallocValidate): Deleted.

2015-01-27  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r179192.
        https://bugs.webkit.org/show_bug.cgi?id=140953

        Caused numerous layout test failures (Requested by mattbaker_
        on #webkit).

        Reverted changeset:

        "Use FastMalloc (bmalloc) instead of BlockAllocator for GC
        pages"
        https://bugs.webkit.org/show_bug.cgi?id=140900
        http://trac.webkit.org/changeset/179192

2015-01-26  Geoffrey Garen  <ggaren@apple.com>

        Use FastMalloc (bmalloc) instead of BlockAllocator for GC pages
        https://bugs.webkit.org/show_bug.cgi?id=140900

        Reviewed by Mark Hahnenberg.

        New interface for aligned allocation: fastAlignedMalloc / fastAlignedFree.
        We require a special function call on free because Windows.

        * wtf/FastMalloc.cpp:
        (WTF::fastAlignedMalloc):
        (WTF::fastAlignedFree): Do it.

        (WTF::do_memalign): Un-ifdef this, since we use it now.

        * wtf/FastMalloc.h: Make our new function names visible like the rest
        of fastMalloc.

2015-01-26  Brent Fulgham  <bfulgham@apple.com>

        [Win] ASSERTION FAILED !m_ptr under AccessibilityController::winAddNotificationListener
        https://bugs.webkit.org/show_bug.cgi?id=87426
        <rdar://problem/11527899>

        Reviewed by Darin Adler.

        Revise internal containers to use std::addressof in preference to
        to using the '&' operator.

        * wtf/Deque.h:
        (WTF::inlineCapacity>::append):
        (WTF::inlineCapacity>::prepend):
        (WTF::inlineCapacity>::removeFirst):
        (WTF::inlineCapacity>::removeLast):
        (WTF::inlineCapacity>::remove):
        (WTF::inlineCapacity>::after):
        (WTF::inlineCapacity>::before):
        * wtf/GetPtr.h:
        * wtf/HashTable.h:
        (WTF::HashTableBucketInitializer<false>::initialize):
        * wtf/HashTraits.h:
        (WTF::SimpleClassHashTraits::constructDeletedValue):
        (WTF::CustomHashTraits::constructDeletedValue):
        * wtf/ListHashSet.h:
        (WTF::ListHashSetConstIterator::get):
        * wtf/Vector.h:
        (WTF::Vector::swap):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::insert):

2015-01-24  Chris Dumez  <cdumez@apple.com>

        Provide implementation for WTF::DefaultHash<bool>
        https://bugs.webkit.org/show_bug.cgi?id=140848

        Reviewed by Anders Carlsson.

        Provide implementation for WTF::DefaultHash<bool> so that we can use
        HashMap<std::pair<XXX, bool>> in the code base. Right now, we need to
        use some integer type to work around the issue.

        * wtf/HashFunctions.h:

2015-01-23  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Add missing null check in some derefGPtr implementations
        https://bugs.webkit.org/show_bug.cgi?id=140822

        Reviewed by Sergio Villar Senin.

        It's missing in GHashTable and GVariant implementations.

        * wtf/gobject/GRefPtr.cpp:
        (WTF::derefGPtr):

2015-01-23  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Add initial database process support
        https://bugs.webkit.org/show_bug.cgi?id=139491

        Reviewed by Sergio Villar Senin.

        Add support for using GRefPtr with GVariantBuilder.

        * wtf/gobject/GRefPtr.cpp:
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/gobject/GRefPtr.h:
        * wtf/gobject/GTypedefs.h:

2015-01-22  Ryosuke Niwa  <rniwa@webkit.org>

        Add a build flag for ES6 class syntax
        https://bugs.webkit.org/show_bug.cgi?id=140760

        Reviewed by Michael Saboff.

        * wtf/FeatureDefines.h:

2015-01-21  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(INSPECTOR) ifdef guards
        https://bugs.webkit.org/show_bug.cgi?id=140668

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2015-01-20  YunQiang Su  <wzssyqa@gmail.com>

        Fix failed to build for Linux/MIPS64EL
        https://bugs.webkit.org/show_bug.cgi?id=124370

        Reviewed by Darin Adler.

        Add MIPS64EL support.

        * wtf/Platform.h:
        * wtf/dtoa/utils.h:

2015-01-19  Alexey Proskuryakov  <ap@apple.com>

        Make ASan do bounds checks for WTF::Vector
        https://bugs.webkit.org/show_bug.cgi?id=140631
        rdar://problem/19437718

        Reviewed by Darin Adler.

        * wtf/SizeLimits.cpp: Disable Vector object size checks for ASan enabled builds.

        * wtf/Vector.h:
        (WTF::VectorBuffer::endOfBuffer):
        (WTF::Vector::Vector):
        (WTF::Vector::~Vector):
        (WTF::Vector::swap):
        (WTF::OverflowHandler>::Vector):
        (WTF::=):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::asanSetInitialBufferSizeTo):
        (WTF::OverflowHandler>::asanSetBufferSizeToFullCapacity):
        (WTF::OverflowHandler>::asanBufferSizeWillChangeTo):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::appendSlowCase):
        (WTF::OverflowHandler>::uncheckedAppend):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::remove):
        (WTF::OverflowHandler>::releaseBuffer):

        * wtf/Compiler.h: Changed ASAN_ENABLED macro fallback value from false to 0,
        MSVC was not happy with false.

2015-01-20  Csaba Osztrogonác  <ossy@webkit.org>

        Remove non-Windows cruft from WebKit/win/Plugins
        https://bugs.webkit.org/show_bug.cgi?id=140675

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h:

2015-01-16  Myles C. Maxfield  <mmaxfield@apple.com>

        WeakPtr functions crash when created with default constructor
        https://bugs.webkit.org/show_bug.cgi?id=140479

        Reviewed by Andreas Kling.

        This patch rearranges how WeakPtr works, and has the following ideas behind it:

        1. WeakPtr should use Ref internally. This solves the crash by always having a
        valid WeakReference.
        2. Clients should not be able to construct WeakReferences directly. Instead,
        only WeakPtrFactory (and WeakPtr's default constructor) should be able to
        construct them. They are considered an implementation detail of WeakPtr.
        3. Except for the default constructor, clients should not be able to construct
        WeakPtrs directly. Instead, the WeakPtrFactory must construct them. This
        guarantees that the WeakPtrs all reference the same WeakReference.
        4. Clients can construct a WeakPtr using its default constructor, and then
        use the assignment operator to make it non-null. (Or they could use
        WeakPtrFactory to make it non-null at creation-time.)
        5. No one was using WeakReference::bindTo(), and it doesn't seem useful, so I
        removed it.

        Tests: WTF_WeakPtr API tests

        * wtf/Ref.h:
        (WTF::Ref::Ref): Added extra ASSERT()s, and explicitly deleted copy
        constructors with a comment.
        (WTF::Ref::operator=): Added extra ASSERT()s, and explicitly deleted copy
        assignment operators with a comment.
        * wtf/WeakPtr.h:
        (WTF::WeakReference::clear): Used nullptr.
        (WTF::WeakReference::create): Moved to private:
        (WTF::WeakPtr::WeakPtr): For the default constructor, initialized the Ref with
        a new WeakReference. For the other constructor, moved it to private:. Also added
        copy constructors and copy assignment operators (since Ref doesn't have them but
        RefPtr does). These constructors/operators are relied upon in various places
        throughout WebCore.
        (WTF::WeakPtr::operator bool): Made non-explicit.
        (WTF::WeakReference::createUnbound): Deleted.
        (WTF::WeakReference::bindTo): Deleted.
        (WTF::WeakReference::WeakReference): Deleted.
        (WTF::WeakPtrFactory::WeakPtrFactory): Deleted.

2015-01-16  Yusuke Suzuki  <utatane.tea@gmail.com>

        std::all_of requires complete C++ iterators in GCC 4.8
        https://bugs.webkit.org/show_bug.cgi?id=140530

        Reviewed by Darin Adler.

        In the WebKit2/UIProcess/WebProcessLifetimeObserver.cpp, std::all_of
        is used for HashIterators. However, std::all_of requires the complete
        C++ iterator interface including iterator_category typedef member and
        it raises compile error in GCC 4.8 (and libstdc++) environment.

        This patch inherits std::iterator with appropriate type parameters.
        It automatically defines required typedefs including iterator_category.

        * wtf/HashIterators.h:

2015-01-15  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(SQL_DATABASE) guards
        https://bugs.webkit.org/show_bug.cgi?id=140434

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2015-01-14  Csaba Osztrogonác  <ossy@webkit.org>

        Unreviewed fix after r163330.

        * wtf/Platform.h: Use C style comment.

2015-01-14  Marc Juul  <juul@sudomesh.org>

        C++ style comment was preventing compile if CPU(ARM_NEON)
        https://bugs.webkit.org/show_bug.cgi?id=133827

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2015-01-13  Chris Dumez  <cdumez@apple.com>

        Make WTF::Optional work with msvc 2013
        https://bugs.webkit.org/show_bug.cgi?id=140401

        Reviewed by Anders Carlsson.

        Update the WTF::Optional implementation to use std::aligned_memory and
        placement new instead of an unrestricted union because msvc 2013 still
        doesn't support unrestricted unions.

        This change is a pre-requirement to fix Bug 140347 as this change uses
        WTF::Optional with types that have non-trivial copy constructors.

        This change is covered by the existing Optional WTF test.

        * wtf/Optional.h:

2015-01-11  Sam Weinig  <sam@webkit.org>

        Remove support for SharedWorkers
        https://bugs.webkit.org/show_bug.cgi?id=140344

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h:

2015-01-12  Darin Adler  <darin@apple.com>

        Modernize and streamline HTMLTokenizer
        https://bugs.webkit.org/show_bug.cgi?id=140166

        Reviewed by Sam Weinig.

        * wtf/Forward.h: Removed PassRef, added OrdinalNumber and TextPosition.

2015-01-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r178154, r178163, and r178164.
        https://bugs.webkit.org/show_bug.cgi?id=140292

        Still multiple assertion failures on tests (Requested by ap on
        #webkit).

        Reverted changesets:

        "Modernize and streamline HTMLTokenizer"
        https://bugs.webkit.org/show_bug.cgi?id=140166
        http://trac.webkit.org/changeset/178154

        "Unreviewed speculative buildfix after r178154."
        http://trac.webkit.org/changeset/178163

        "One more unreviewed speculative buildfix after r178154."
        http://trac.webkit.org/changeset/178164

2015-01-08  Darin Adler  <darin@apple.com>

        Modernize and streamline HTMLTokenizer
        https://bugs.webkit.org/show_bug.cgi?id=140166

        Reviewed by Sam Weinig.

        * wtf/Forward.h: Removed PassRef, added OrdinalNumber and TextPosition.

2015-01-08  Benjamin Poulain  <benjamin@webkit.org>

        [WK2] Start a prototype for declarative site specific extensions
        https://bugs.webkit.org/show_bug.cgi?id=140160

        Reviewed by Andreas Kling.

        * wtf/FeatureDefines.h:

2015-01-07  Daniel Bates  <dabates@apple.com>

        [iOS] Make WebKit2 build with public iOS SDK and more build fixes for DRT
        https://bugs.webkit.org/show_bug.cgi?id=137371

        As pointed out by Tim Horton, use C-style comment instead of C++-style comment as
        wtf/Compiler.h is included in the sandbox profile and the sandbox profile compiler
        doesn't understand C++-style comments.

        * wtf/Compiler.h:

2015-01-07  Daniel Bates  <dabates@apple.com>

        [iOS] Make WebKit2 build with public iOS SDK and more build fixes for DRT
        https://bugs.webkit.org/show_bug.cgi?id=137371

        Reviewed by David Kilzer.

        Move EXTERN_C_BEGIN and EXTERN_C_END macros from file WebKit2/config.h to here and
        rename them to WTF_EXTERN_C_BEGIN and WTF_EXTERN_C_END, respectively, so that we
        can make use of these macros in SPI wrapper headers (e.g. UIKitSPI.h).

        I'll look to transition existing code to WTF_EXTERN_C_BEGIN/WTF_EXTERN_C_END and
        remove EXTERN_C in a subsequent commit(s).

        * wtf/Compiler.h:

2015-01-07  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r178068.
        https://bugs.webkit.org/show_bug.cgi?id=140235

        Breaks the iOS build (Requested by enrica on #webkit).

        Reverted changeset:

        "[iOS] Make WebKit2 build with public iOS SDK and more build
        fixes for DRT"
        https://bugs.webkit.org/show_bug.cgi?id=137371
        http://trac.webkit.org/changeset/178068

2015-01-07  Daniel Bates  <dabates@apple.com>

        [iOS] Make WebKit2 build with public iOS SDK and more build fixes for DRT
        https://bugs.webkit.org/show_bug.cgi?id=137371

        Reviewed by David Kilzer.

        Move EXTERN_C_BEGIN and EXTERN_C_END macros from file WebKit2/config.h to here and
        rename them to WTF_EXTERN_C_BEGIN and WTF_EXTERN_C_END, respectively, so that we
        can make use of these macros in SPI wrapper headers (e.g. UIKitSPI.h).

        I'll look to transition existing code to WTF_EXTERN_C_BEGIN/WTF_EXTERN_C_END and
        remove EXTERN_C in a subsequent commit(s).

        * wtf/Compiler.h:

2015-01-07  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: purge PassRefPtr from Inspector code and use Ref for typed and untyped protocol objects
        https://bugs.webkit.org/show_bug.cgi?id=140053

        Reviewed by Andreas Kling.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::create): Return a Ref.

2015-01-07  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r178039.
        https://bugs.webkit.org/show_bug.cgi?id=140187

        Breaks ObjC Inspector Protocol (Requested by JoePeck on
        #webkit).

        Reverted changeset:

        "Web Inspector: purge PassRefPtr from Inspector code and use
        Ref for typed and untyped protocol objects"
        https://bugs.webkit.org/show_bug.cgi?id=140053
        http://trac.webkit.org/changeset/178039

2015-01-06  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: purge PassRefPtr from Inspector code and use Ref for typed and untyped protocol objects
        https://bugs.webkit.org/show_bug.cgi?id=140053

        Reviewed by Andreas Kling.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::create): Return a Ref.

2015-01-06  Alexey Proskuryakov  <ap@apple.com>

        ADDRESS_SANITIZER macro is overloaded
        https://bugs.webkit.org/show_bug.cgi?id=140130

        Reviewed by Anders Carlsson.

        * wtf/Compiler.h: Added an ASAN_ENABLED macro. The abbreviation should become well
        known - we already use it in tools.

        * wtf/Assertions.h:
        * wtf/RefCounted.h:
        * wtf/SizeLimits.cpp:
        Change the conditional to ENABLE(SECURITY_ASSERTIONS). These checks will be used
        in debug builds, and also when one explicitly passes -DENABLE_SECURITY_ASSERTIONS.

2015-01-05  Andreas Kling  <akling@apple.com>

        Purge PassRefPtr from Page.
        <https://webkit.org/b/140089>

        Reviewed by Anders Carlsson.

        Make SchedulePair::create() return Ref since it never fails.

        * wtf/SchedulePair.h:
        (WTF::SchedulePair::create):

2015-01-01  Darin Adler  <darin@apple.com>

        Rework code that hides characters in password fields to streamline a little
        https://bugs.webkit.org/show_bug.cgi?id=140035

        Reviewed by Sam Weinig.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::fill): Deleted.
        * wtf/text/StringImpl.h: Deleted StringImpl::fill.
        * wtf/text/WTFString.h:
        (WTF::String::fill): Deleted.

2014-12-26  Dan Bernstein  <mitz@apple.com>

        Build fix.

        Removed use of __builtin_s{add,sub}_overflow introduced in r177729 that was causing a compiler used at Apple to crash because of <rdar://problem/19347133>.

        * wtf/SaturatedArithmetic.h:
        (signedAddOverflows):
        (signedSubtractOverflows):

2014-12-26  Dan Bernstein  <mitz@apple.com>

        <rdar://problem/19348208> REGRESSION (r177027): iOS builds use the wrong toolchain
        https://bugs.webkit.org/show_bug.cgi?id=139950

        Reviewed by David Kilzer.

        * Configurations/Base.xcconfig: Only define TOOLCHAINS when building for OS X, doing so
        in a manner that works with Xcode 5.1.1.

2014-12-25  Dan Bernstein  <mitz@apple.com>

        Try to fix the Windows build after r177733.

        * wtf/Ref.h:

2014-12-25  Alexey Proskuryakov  <ap@apple.com>

        Simplify saturated integer add/sub
        https://bugs.webkit.org/show_bug.cgi?id=139854

        Address Darin's post-commit feedback to fix API tests.

        * wtf/SaturatedArithmetic.h: (saturatedSubtraction):

2014-12-24  Benjamin Poulain  <benjamin@webkit.org>

        Simplify saturated integer add/sub
        https://bugs.webkit.org/show_bug.cgi?id=139854

        Reviewed by Darin Adler.

        * wtf/Compiler.h:
        Make a wrapper for __has_builtin for compilers that do not support it.

        * wtf/SaturatedArithmetic.h:
        (saturatedAddition):
        (saturatedSubtraction):
        Use the builtins when possible instead of reinventing the wheel.
        On ARMv7, use the saturated math instructions.

2014-12-23  Anders Carlsson  <andersca@apple.com>

        Move dynamic_objc_cast to RetainPtr.h
        https://bugs.webkit.org/show_bug.cgi?id=139915

        Reviewed by Sam Weinig.

        * wtf/RetainPtr.h:
        (WTF::dynamic_objc_cast):

2014-12-23  Anders Carlsson  <andersca@apple.com>

        Re-indent RefPtr.h and RetainPtr.h.

        Rubber-stamped by Sam Weinig.

        * wtf/RefPtr.h:
        * wtf/RetainPtr.h:

2014-12-20  Eric Carlson  <eric.carlson@apple.com>

        [iOS] add optimized fullscreen API
        https://bugs.webkit.org/show_bug.cgi?id=139833
        <rdar://problem/18844486>

        Reviewed by Simon Fraser.

        * wtf/Platform.h: Define ENABLE_VIDEO_PRESENTATION_MODE.

2014-12-18  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        Fix build break on EFL and GTK since r177523
        https://bugs.webkit.org/show_bug.cgi?id=139805

        Reviewed by Csaba Osztrogonác.

        * wtf/Ref.h: Include <wtf/StdLibExtras.h> to use std::exchange().

2014-12-18  Gavin Barraclough  <barraclough@apple.com>

        Add strong typing to RefCounter interface, return value as a bool.
        https://bugs.webkit.org/show_bug.cgi?id=139776

        Unreviewed style fixes.

        * wtf/RefCounter.h:
        (WTF::=):

2014-12-18  Brent Fulgham  <bfulgham@apple.com>

        [Win] Build correction after r177541.

        * wtf/RefCounter.h:
        (WTF::RefCounter::Token<T>::Token): Revise constructor inlines to correct
        syntax error.

2014-12-18  Gavin Barraclough  <barraclough@apple.com>

        Add strong typing to RefCounter interface, return value as a bool.
        https://bugs.webkit.org/show_bug.cgi?id=139776

        Reviewed by Geoff Garen.

        Currently all token vended by a RefCounter have the same type - Ref<RefCounter::Count>.
        This means there is no compile time type checking to prevent mistakes. Update the count()
        method to token<>(), templated on type used to identify the token being returned.
        Calls to token<T>() will return a result of type RefCounter::Token<T>.

        There are a few problems with the fact the counter will return you an exact count of the
        number of outstanding tokens:
          - It is desirable to only fire the callback on zero-edge changes; it is more consistent
            to do so if the value is only readable as a boolean.
          - It is desirable to provide the value as an argument to the callback, however to make
            this useful for integer values it is also necessary to indicate the direction of change
            (0->1 is often interesting where 2->1 is not).
          - There is a mismatch between the precision of returning a count, and the inherent
            imprecision of a token based mechanism, where it may be difficult to guarantee
            absolutely no unnecessary refcount churn, and thus unintentional counter values.

        * wtf/RefCounter.cpp:
        (WTF::RefCounter::Count::ref):
        (WTF::RefCounter::Count::deref):
            - only call the callback on zero-edge changes; provide the value.
        (WTF::RefCounter::RefCounter):
            - callback now takes a bool argument.
        * wtf/RefCounter.h:
        (WTF::RefCounter::Token::Token):
            - New opaque type to reference the RefCounter::Count.
        (WTF::RefCounter::Token::operator!):
            - ! operator checks for null / anasigned Tokens.
        (WTF::RefCounter::RefCounter):
            - callback now takes a bool argument.
        (WTF::RefCounter::token):
            - renamed from count(), templated on type of token returned.
        (WTF::RefCounter::value):
            - now returns a bool.
        (WTF::RefCounter::Token<T>::Token):
        (WTF::=):
            - Tokens can be copied & assigned.
        (WTF::RefCounter::count): Deleted.
            - renamed to token<>().

2014-12-18  Anders Carlsson  <andersca@apple.com>

        Simplify smart pointer classes by using std::exchange
        https://bugs.webkit.org/show_bug.cgi?id=139790

        Reviewed by Andreas Kling.

        * wtf/MallocPtr.h:
        * wtf/OSObjectPtr.h:
        * wtf/OwnPtr.h:
        (WTF::OwnPtr<T>::clear):
        (WTF::OwnPtr<T>::release):
        (WTF::OwnPtr<T>::leakPtr):
        (WTF::=):
        * wtf/PassOwnPtr.h:
        (WTF::PassOwnPtr<T>::leakPtr):
        * wtf/PassRefPtr.h:
        (WTF::PassRefPtr<T>::leakRef):
        * wtf/Ref.h:
        * wtf/RefPtr.h:
        (WTF::RefPtr<T>::clear):
        (WTF::RefPtr<T>::leakRef):
        * wtf/RetainPtr.h:
        (WTF::RetainPtr<T>::leakRef):

2014-12-18  Anders Carlsson  <andersca@apple.com>

        Clean up MachSendRight and add a copySendRight member function
        https://bugs.webkit.org/show_bug.cgi?id=139788

        Reviewed by Tim Horton.

        * wtf/StdLibExtras.h:
        (std::exchange):
        Add an implementation of std::exchange.

2014-12-17  Chris Dumez  <cdumez@apple.com>

        [iOS] Make it possible to toggle FeatureCounter support at runtime
        https://bugs.webkit.org/show_bug.cgi?id=139688
        <rdar://problem/19266254>

        Reviewed by Andreas Kling.

        Remove FeatureCounter API from WTF and move it to WebCore/platform
        instead so that it can log conditionally based on a WebCore setting.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:

2014-12-17  Brent Fulgham  <bfulgham@apple.com>

        [Win] Correct DebugSuffix builds under MSBuild
        https://bugs.webkit.org/show_bug.cgi?id=139733
        <rdar://problem/19276880>

        Reviewed by Simon Fraser.

        * WTF.vcxproj/WTF.proj: Make sure to use the '_debug' suffix
        when building the DebugSuffix target.

2014-12-17  Anders Carlsson  <andersca@apple.com>

        Make Ref::copyRef const and ref-qualified
        https://bugs.webkit.org/show_bug.cgi?id=139730

        Reviewed by Andreas Kling.

        * wtf/Ref.h:

2014-12-16  Daniel Bates  <dabates@apple.com>

        [iOS] WTF fails to build with public SDK due to missing header CPAggregateDictionary.h
        https://bugs.webkit.org/show_bug.cgi?id=139695

        Reviewed by Chris Dumez.

        Add USE(APPLE_INTERNAL_SDK)-guard around iOS-specific feature counter implementation
        as we are only interested in counting features in builds of iOS WebKit that were built
        with the Apple Internal SDK.

        * wtf/FeatureCounter.cpp:
        * wtf/ios/FeatureCounter.mm:

2014-12-16  Geoffrey Garen  <ggaren@apple.com>

        Enable FastMalloc in debug builds
        https://bugs.webkit.org/show_bug.cgi?id=139692

        Reviewed by Alexey Proskuryakov.

        This will give debug builds greater fidelity to the real thing.

        FastMalloc now transparently supports all the malloc debugging APIs I
        know of by disabling itself at runtime -- and it should be easy to add
        support for any APIs I missed -- so there's no need to turn it off in
        debug builds.

        * wtf/FastMalloc.cpp:

2014-12-16  Anders Carlsson  <andersca@apple.com>

        RefPtr::copyRef should be const
        https://bugs.webkit.org/show_bug.cgi?id=139689

        Reviewed by Andreas Kling.

        copyRef() doesn't modify the original object so it should be const.
        Also, add a && qualified overload and mark it deleted so that calls to copyRef() where
        the object is an rvalue will fail to compile.

        * wtf/RefPtr.h:

2014-12-15  Chris Dumez  <cdumez@apple.com>

        [iOS] Add feature counting support
        https://bugs.webkit.org/show_bug.cgi?id=139652
        <rdar://problem/19255690>

        Reviewed by Gavin Barraclough.

        Add a FeatureCounter API for to log / count when a feature
        is used. For now, this is only implementated on iOS.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FeatureCounter.cpp: Added.
        (WTF::incrementFeatureCounterKey):
        (WTF::setFeatureCounterKey):
        * wtf/FeatureCounter.h: Added.
        * wtf/ios/FeatureCounter.mm: Added.
        (WTF::incrementFeatureCounterKey):
        (WTF::setFeatureCounterKey):

2014-12-12  Anders Carlsson  <andersca@apple.com>

        Get rid of the DONT_FINALIZE_ON_MAIN_THREAD #define
        https://bugs.webkit.org/show_bug.cgi?id=139613

        Reviewed by Sam Weinig.

        * wtf/Platform.h:
        Remove the #define.

2014-12-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r177284.
        https://bugs.webkit.org/show_bug.cgi?id=139658

        "Breaks API tests and LayoutTests on Yosemite Debug"
        (Requested by msaboff on #webkit).

        Reverted changeset:

        "Make sure range based iteration of Vector<> still receives
        bounds checking"
        https://bugs.webkit.org/show_bug.cgi?id=138821
        http://trac.webkit.org/changeset/177284

2014-12-15  Andreas Kling  <akling@apple.com>

        Purge PassRefPtr from FocusEvent code.
        <https://webkit.org/b/139647>

        Reviewed by Anders Carlsson.

        Add a RefPtr::copyRef() to use when passing a RefPtr to a RefPtr&& without
        transferring the ownership.

        * wtf/RefPtr.h:

2014-12-15  Oliver Hunt  <oliver@apple.com>

        Make sure range based iteration of Vector<> still receives bounds checking
        https://bugs.webkit.org/show_bug.cgi?id=138821

        Reviewed by Mark Lam.

        Add a new IndexedIterator struct to WTF that wraps a
        Vector type and index to provide pointer like semantics
        while still performing runtime bounds checking, even in
        release builds. We store a simple index into the vector
        which means that this iterator allows vector resizing
        during iteration. If the vector is resized such that the
        iterator is out of bounds, then any attempt to dereference
        the iterator will crash safely.

        For the purpose of retaining semantically equivalent
        behaviour, the iterator can be moved to m_index == size()
        as that is the standard "end" terminator for these types.
        Attempting to dereference at that point will still crash
        rather than perform an unsafe memory operation.

        By necessity there are many overrides for operator + and - as
        we otherwise hit many different type promotion ambiguities when
        performing arithmetic with iterators. These ambiguities are also
        different for 32- vs. 64-bit, so duplicating the functions
        and then forwarding to the core implementations that performed
        the bounds checking and mutation seemed like the right call.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/IndexedIterator.h: Added.
        (WTF::IndexedIterator::IndexedIterator):
        (WTF::IndexedIterator::operator->):
        (WTF::IndexedIterator::operator*):
        (WTF::IndexedIterator::get):
        (WTF::IndexedIterator::operator++):
        (WTF::IndexedIterator::operator--):
        (WTF::IndexedIterator::operator UnspecifiedBoolType):
        (WTF::IndexedIterator::operator-):
        (WTF::IndexedIterator::operator=):
        (WTF::IndexedIterator::operator==):
        (WTF::IndexedIterator::operator!=):
        (WTF::IndexedIterator::operator<):
        (WTF::IndexedIterator::operator<=):
        (WTF::IndexedIterator::operator>):
        (WTF::IndexedIterator::operator>=):
        (WTF::IndexedIterator::operator const_iterator):
        (WTF::IndexedIterator::unsafeGet):
        (WTF::getPtr):
        (WTF::operator-):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::operator<=):
        (WTF::operator>=):
        (WTF::operator<):
        (WTF::operator>):
        (WTF::IndexedIteratorSelector::makeIterator):
        (WTF::IndexedIteratorSelector::makeConstIterator):
        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        * wtf/Vector.h:
        (WTF::Vector::Vector):
        (WTF::Vector::begin):
        (WTF::Vector::end):
        (WTF::OverflowHandler>::Vector):
        (WTF::=):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::appendSlowCase):
        (WTF::OverflowHandler>::uncheckedAppend):
        (WTF::OverflowHandler>::appendVector):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::insertVector):
        (WTF::OverflowHandler>::remove):

2014-12-14  Andreas Kling  <akling@apple.com>

        Minor follow-up tweaks suggested by Darin on bug 139587.

        * wtf/text/WTFString.h:
        (WTF::String::String):

2014-12-14  Andreas Kling  <akling@apple.com>

        Replace PassRef with Ref/Ref&& across the board.
        <https://webkit.org/b/139587>

        Reviewed by Darin Adler.

        Kill the PassRef class and replace it by Ref/Ref&&.
        Usage is simple:

            - For locals and members, keep using Ref<T>.
            - For return types, use Ref<T>.
            - For (ownership-transferring) arguments, use Ref<T>&&.

        When passing to a Ref&&, use WTF::move() to mobilize the value
        at the call site, e.g:

            void myFunction(Ref<Foo>&&);

            Ref<Foo> myFoo(Foo::create());
            myFunction(WTF::move(myFoo));
            // 'myFoo' is invalid from this point forward.

        As you can see, it works a lot like PassRefPtr, but unlike PassRefPtr
        it won't surprise you by becoming null *unless* you WTF::move it.

        I've also added a Ref::copyRef() for instances where you want to
        return a Ref *without* transferring ownership, e.g code like:

            Ref<Foo> foo() { return m_foo; }

        ... now becomes ...

            Ref<Foo> foo() { return m_foo.copyRef(); }

        This makes it explicit that a refcount bump will occur.

        Finally, do note that unlike last year's PassRef, Ref&& does not
        require you to move it to avoid leaking; it will clean itself up.

        * wtf/PassRef.h:
        (WTF::adopted): Deleted.
        (WTF::PassRef<T>::PassRef): Deleted.
        (WTF::PassRef<T>::~PassRef): Deleted.
        (WTF::PassRef<T>::get): Deleted.
        (WTF::PassRef<T>::ptr): Deleted.
        (WTF::PassRef<T>::leakRef): Deleted.
        (WTF::adoptRef): Deleted.
        (WTF::createRefCounted): Deleted.
        * wtf/PassRefPtr.h:
        (WTF::PassRefPtr::PassRefPtr):
        * wtf/Ref.h:
        (WTF::adopted):
        (WTF::Ref::~Ref):
        (WTF::Ref::Ref):
        (WTF::Ref::operator=):
        (WTF::Ref::operator->):
        (WTF::Ref::ptr):
        (WTF::Ref::get):
        (WTF::Ref::operator T&):
        (WTF::Ref::operator const T&):
        (WTF::Ref<T>::replace):
        (WTF::adoptRef):
        * wtf/RefCounter.h:
        (WTF::RefCounter::count):
        * wtf/RefPtr.h:
        (WTF::RefPtr::releaseNonNull):
        (WTF::RefPtr<T>::RefPtr):
        (WTF::=):
        * wtf/text/AtomicString.cpp:
        (WTF::addToStringTable):
        (WTF::AtomicString::add):
        (WTF::AtomicString::addFromLiteralData):
        (WTF::AtomicString::addSlowCase):
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createFromLiteral):
        (WTF::StringImpl::createWithoutCopying):
        (WTF::StringImpl::createUninitializedInternal):
        (WTF::StringImpl::createUninitializedInternalNonEmpty):
        (WTF::StringImpl::createUninitialized):
        (WTF::StringImpl::reallocateInternal):
        (WTF::StringImpl::reallocate):
        (WTF::StringImpl::createInternal):
        (WTF::StringImpl::create):
        (WTF::StringImpl::create8BitIfPossible):
        (WTF::StringImpl::substring):
        (WTF::StringImpl::lower):
        (WTF::StringImpl::upper):
        (WTF::StringImpl::fill):
        (WTF::StringImpl::foldCase):
        (WTF::StringImpl::convertToASCIILowercase):
        (WTF::StringImpl::stripMatchedCharacters):
        (WTF::StringImpl::stripWhiteSpace):
        (WTF::StringImpl::removeCharacters):
        (WTF::StringImpl::simplifyMatchedCharactersToSpace):
        (WTF::StringImpl::simplifyWhiteSpace):
        (WTF::StringImpl::replace):
        (WTF::StringImpl::adopt):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::create8BitIfPossible):
        (WTF::StringImpl::create):
        (WTF::StringImpl::createSubstringSharingImpl8):
        (WTF::StringImpl::createSubstringSharingImpl):
        (WTF::StringImpl::createFromLiteral):
        (WTF::StringImpl::createEmptyUnique):
        (WTF::StringImpl::adopt):
        (WTF::StringImpl::replace):
        (WTF::StringImpl::constructInternal<LChar>):
        (WTF::StringImpl::constructInternal<UChar>):
        (WTF::StringImpl::isolatedCopy):
        * wtf/text/WTFString.h:
        (WTF::String::String):

2014-12-10  Geoffrey Garen  <ggaren@apple.com>

        Please disable the webkitFirstVersionWithInitConstructorSupport check on Apple TV
        https://bugs.webkit.org/show_bug.cgi?id=139501

        Reviewed by Gavin Barraclough.

        Added a platform definition for APPLETV.

        (It's not an OS because it's not mutually exclusive with other OS definitions.)

        * wtf/Platform.h:

2014-12-10  Martin Robinson  <mrobinson@igalia.com>

        [GTK] Add support for text-decoration-skip
        https://bugs.webkit.org/show_bug.cgi?id=131540

        Reviewed by Gustavo Noronha Silva.

        * wtf/Platform.h: Enable text decoration skip by default.

2014-12-09  David Kilzer  <ddkilzer@apple.com>

        Switch from using PLATFORM_NAME to SDK selectors in ANGLE, bmalloc, gtest, JavaScriptCore, WTF
        <http://webkit.org/b/139212>

        Reviewed by Joseph Pecoraro.

        * Configurations/Base.xcconfig:
        - Only set GCC_ENABLE_OBJC_GC, GCC_MODEL_TUNING and TOOLCHAINS
          on OS X.
        * Configurations/DebugRelease.xcconfig:
        - Only set MACOSX_DEPLOYMENT_TARGET and SDKROOT on OS X.

2014-12-09  Dean Jackson  <dino@apple.com>

        [Apple] Use Accelerate framework to speed-up FEGaussianBlur
        https://bugs.webkit.org/show_bug.cgi?id=139310

        Unreviewed followup, after comments by Andreas Kling.

        It was pointed out that we already have a USE(ACCELERATE), so
        we don't need a HAVE(ACCELERATE) :)

        * wtf/Platform.h:

2014-12-09  Alberto Garcia  <berto@igalia.com>

        Undefined Symbol build error "_objc_registerThreadWithCollector" when building WebKit GTK Mac OS X on Snow Leopard
        https://bugs.webkit.org/show_bug.cgi?id=58737

        Reviewed by Darin Adler.

        Replace OS(MAC_OS_X) with PLATFORM(MAC) to prevent using
        osx-specific code in WebKitGTK+ builds.

        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeCurrentThreadInternal):

2014-12-08  Dean Jackson  <dino@apple.com>

        [Apple] Use Accelerate framework to speed-up FEGaussianBlur
        https://bugs.webkit.org/show_bug.cgi?id=139310
        <rdar://problem/18434594>

        Reviewed by Simon Fraser.

        Add a HAVE_ACCELERATE flag, true on Apple platforms.

        * wtf/Platform.h:

2014-12-08  Myles C. Maxfield  <mmaxfield@apple.com>

        Fix iOS build after r176971.

        I had previously modified the WTF forwarding header instead of modifying the real source.

        * wtf/unicode/CharacterNames.h:

2014-12-08  Anders Carlsson  <andersca@apple.com>

        Change WTF::currentCPUTime to return std::chrono::microseconds and get rid of currentCPUTimeMS
        https://bugs.webkit.org/show_bug.cgi?id=139410

        Reviewed by Andreas Kling.

        * wtf/CurrentTime.cpp:
        (WTF::currentCPUTime):
        (WTF::currentCPUTimeMS): Deleted.
        * wtf/CurrentTime.h:

2014-12-08  Chris Dumez  <cdumez@apple.com>

        Revert r176293 & r176275

        Unreviewed, revert r176293 & r176275 changing the Vector API to use unsigned type
        instead of size_t. There is some disagreement regarding the long-term direction
        of the API and we shouldn’t leave the API partly transitioned to unsigned type
        while making a decision.

        * wtf/Forward.h:
        * wtf/Vector.h:
        (WTF::VectorTypeOperations::compare):
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBufferBase::shouldReallocateBuffer):
        (WTF::VectorBufferBase::reallocateBuffer):
        (WTF::VectorBufferBase::capacity):
        (WTF::VectorBufferBase::VectorBufferBase):
        (WTF::VectorBuffer::VectorBuffer):
        (WTF::VectorBuffer::allocateBuffer):
        (WTF::VectorBuffer::tryAllocateBuffer):
        (WTF::VectorBuffer::shouldReallocateBuffer):
        (WTF::VectorBuffer::reallocateBuffer):
        (WTF::VectorBuffer::swap):
        (WTF::VectorBuffer::swapInlineBuffer):
        (WTF::VectorBuffer::swapInlineBuffers):
        (WTF::Vector::Vector):
        (WTF::Vector::capacity):
        (WTF::Vector::at):
        (WTF::Vector::operator[]):
        (WTF::OverflowHandler>::find):
        (WTF::OverflowHandler>::reverseFind):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::resizeToFit):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::reserveInitialCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::insertVector):
        (WTF::OverflowHandler>::remove):
        (WTF::OverflowHandler>::reverse):
        (WTF::OverflowHandler>::checkConsistency):
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::adopt):
        (WTF::equalIgnoringNullity):
        * wtf/text/StringView.h:
        (WTF::append):
        * wtf/text/WTFString.h:

2014-12-07  Andreas Kling  <akling@apple.com>

        Use more PassRef in AtomicString.
        <https://webkit.org/b/139319>

        Reviewed by Antti Koivisto.

        Make a pass over AtomicString and convert functions that return PassRefPtr
        into returning RefPtr (where it may be null) and PassRef otherwise.
        This allows the compiler to skip null checks in many places.

        * wtf/text/AtomicString.cpp:
        (WTF::addToStringTable):
        (WTF::AtomicString::add):
        (WTF::AtomicString::addFromLiteralData):
        (WTF::AtomicString::addSlowCase):
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::add):
        (WTF::AtomicString::addWithStringTableProvider):
        * wtf/text/cf/AtomicStringCF.cpp:
        (WTF::AtomicString::add):

2014-12-05  Roger Fong  <roger_fong@apple.com>

        [Win] proj files copying over too many resources..
        https://bugs.webkit.org/show_bug.cgi?id=139315.
        <rdar://problem/19148278>

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.proj: Only copy WTF.dll.

2014-12-05  Andreas Kling  <akling@apple.com>

        PassRef should deref on destruction if pointee was not moved.
        <https://webkit.org/b/139309>

        Reviewed by Antti Koivisto.

        Let PassRef become nullptr internally after having WTF::move()'d the pointee.
        This means that PassRef is now essentially a PassRefPtr that can only be
        constructed with a non-null pointee.

        This should make it possible for all ::create()-style construction helpers to
        return PassRef, removing a branch in each case.

        * wtf/PassRef.h:
        (WTF::PassRef<T>::PassRef):
        (WTF::PassRef<T>::~PassRef):
        (WTF::PassRef<T>::get):
        (WTF::PassRef<T>::ptr):
        (WTF::PassRef<T>::leakRef):
        (WTF::PassRef<T>::dropRef): Deleted.

2014-12-05  Jer Noble  <jer.noble@apple.com>

        [WTF] MediaTime should support round-tripping from and to doubles.
        https://bugs.webkit.org/show_bug.cgi?id=139248

        Reviewed by Eric Carlson.

        MediaTimes should be able to return precisely the same double value as was used
        when the MediaTime was created, so long as that MediaTime was not modified in a
        non-destructive way. This will allow API which accepts floating-point values to
        return the exact same value when asked, but still be able to store that value
        as a MediaTime.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::createWithFloat): Added; store the floating-point value in a union.
        (WTF::MediaTime::createWithDouble): Ditto.
        (WTF::MediaTime::toFloat): If the value is a double, just return it.
        (WTF::MediaTime::toDouble): Ditto.
        (WTF::MediaTime::operator+): Special case when one or both sides are doubles.
        (WTF::MediaTime::operator-): Ditto.
        (WTF::MediaTime::operator*): Ditto.
        (WTF::MediaTime::compare): Ditto.
        (WTF::abs): Ditto.
        (WTF::MediaTime::setTimeScale): Convert the MediaTime from a double.

2014-12-05  peavo@outlook.com  <peavo@outlook.com>

        [WinCairo] WTF project is missing a GStreamer source file.
        https://bugs.webkit.org/show_bug.cgi?id=139296

        Reviewed by Philippe Normand.

        The WTF project file is missing a GStreamer source file,
        causing a link error when compiling with GStreamer enabled.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:

2014-12-04  David Kilzer  <ddkilzer@apple.com>

        REGRESSION (r176683): RefCounter.h is installed outside SDKROOT

        * WTF.xcodeproj/project.pbxproj: Don't mark RefCounter.h as a
        private header.  WTF headers use a special build phase script to
        be installed.

2014-12-04  Anders Carlsson  <andersca@apple.com>

        Make API::String copy the underlying strings if needed, for thread safety
        https://bugs.webkit.org/show_bug.cgi?id=139261

        Reviewed by Sam Weinig.

        * wtf/RefPtr.h:
        (WTF::RefPtr<T>::leakRef):
        Add a leakRef() to RefPtr so we don't have to go through PassRefPtr.

        * wtf/text/WTFString.cpp:
        (WTF::String::isSafeToSendToAnotherThread):
        Check if the string is empty before checking whether it's in an atomic string table.
        It's safe to send empty strings to other threads even if they're in the atomic string table
        since they will never be deallocated.

2014-12-04  Csaba Osztrogonác  <ossy@webkit.org>

        Fix cast-align warning in StringImpl.h
        https://bugs.webkit.org/show_bug.cgi?id=139222

        Reviewed by Anders Carlsson.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::tailPointer):

2014-12-02  Mark Lam  <mark.lam@apple.com>

        Rolling out r176592, r176603, r176616, and r176705 until build and perf issues are resolved.
        https://bugs.webkit.org/show_bug.cgi?id=138821

        Not reviewed.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/IndexedIterator.h: Removed.
        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        * wtf/Vector.h:
        (WTF::Vector::Vector):
        (WTF::Vector::begin):
        (WTF::Vector::end):
        (WTF::OverflowHandler>::Vector):
        (WTF::=):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::appendSlowCase):
        (WTF::OverflowHandler>::uncheckedAppend):
        (WTF::OverflowHandler>::appendVector):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::insertVector):
        (WTF::OverflowHandler>::remove):

2014-12-02  Oliver Hunt  <oliver@apple.com>

        Fix IOS builds.

        * wtf/IndexedIterator.h:

2014-12-02  Gavin Barraclough  <barraclough@apple.com>

        Generalize PageActivityAssertionToken
        https://bugs.webkit.org/show_bug.cgi?id=139106

        Reviewed by Sam Weinig.

        PageActivityAssertionToken is a RAII mechanism implementing a counter, used by PageThrottler
        to count user visible activity in progress on the page (currently page load and media playback).
        Use of an RAII type is prevents a number of possible errors, including double counting a single
        media element, or failing to decrement the count after a media element has been deallocated.

        The current implementation has a number of drawbacks that have been addressed by this refactoring:
         - specific to single use in PageThrottler class - not reusable.
         - incomplete encapsulation - the counter and WeakPtrFactory that comprise the current implementation
           are not encapsulated (are in the client type, PageThrottler).
         - tokens are not shared - PageActivityAssertionToken instances are managed by std::unique, every
           increment requires an object allocation.
         - redundancy - the current implementation uses a WeakPtr to safely reference the PageThrottler, this
           is internally implemented using a reference counted type, resulting in two counters being
           incremented (one in the PageActivityAssertionToken, one in the PageThrottler).

        In the reimplementation:
         - a callback is provided via a lambda function, which allows for easy reuse without a lot of
           boilerplate code.
         - the counter, callback and ownership of the otherwise weakly-owned token is encapsulated within the
           RefCounter type.
         - a single count within RefCounter::Count stores the counter value, and also manage the lifetime
           of this object.
         - standard RefPtrs are used to manage references to the RefCounter::Count.

        * WTF.xcodeproj/project.pbxproj:
            - added RefCounter.cpp/.h
        * wtf/RefCounter.cpp: Added.
        (WTF::RefCounter::Count::ref):
            - increment the counter.
        (WTF::RefCounter::Count::deref):
            - decrement the counter, and delete as necessary.
        (WTF::RefCounter::RefCounter):
            - create a RefCounter::Count.
        (WTF::RefCounter::~RefCounter):
            - eagerly delete the Counter if it has no references, otherwise let it be deleted on last deref.
        * wtf/RefCounter.h: Added.
        (WTF::RefCounter::Count::Count):
            - initialize count to 0.
        (WTF::RefCounter::RefCounter):
            - takes a lambda to be called when the value changes.
        (WTF::RefCounter::count):
            - reference the counter (and in doing so increment the count).
        (WTF::RefCounter::value):
            - access the current value of the counter.

2014-12-01  Andreas Kling  <akling@apple.com>

        Optimize constructing JSC::Identifier from AtomicString.
        <https://webkit.org/b/139157>

        Reviewed by Michael Saboff.

        Make AtomicString::isInAtomicStringTable() public so it can be used
        in some Identifier assertions.

        * wtf/text/AtomicString.h:

2014-12-01  Oliver Hunt  <oliver@apple.com>

        Fix non-mac builds.

        * wtf/IndexedIterator.h:

2014-12-01  Oliver Hunt  <oliver@apple.com>

        Fix 32-bit build.

        * wtf/IndexedIterator.h:

2014-11-17  Oliver Hunt  <oliver@apple.com>

        Make sure range based iteration of Vector<> still receives bounds checking
        https://bugs.webkit.org/show_bug.cgi?id=138821

        Reviewed by Mark Lam.

        Add a new IndexedIterator struct to WTF that wraps a
        Vector type and index to provide pointer like semantics
        while still performing runtime bounds checking, even in
        release builds. We store a simple index into the vector
        which means that this iterator allows vector resizing
        during iteration. If the vector is resized such that the
        iterator is out of bounds, then any attempt to dereference
        the iterator will crash safely. Any other errors, including
        overflows, and over extending the iterator will likewise
        crash.

        For the purpose of retaining semantically equivalent
        behaviour, the iterator can be moved to m_index == size()
        as that is the standard "end" terminator for these types.
        Attempting to dereference at that point will still crash
        rather than perform an unsafe memory operation.

        In order to maintain the validity of all the bounds checking,
        we perform full integer range checking prior to any mutation
        of the iterator location. If we detect an arithmetic overflow
        we will crash rather than attempting to carry on.

        By necessity there are many overrides for operator + and - as
        we otherwise hit many different type promotion ambiguities when
        performing arithmetic with iterators. These ambiguities are also
        different for 32- vs. 64-bit, so duplicating the functions
        and then forwarding to the core implementations that performed
        the bounds checking and mutation seemed like the right call.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/IndexedIterator.h: Added.
        (WTF::IndexedIterator::IndexedIterator):
        (WTF::IndexedIterator::operator->):
        (WTF::IndexedIterator::operator*):
        (WTF::IndexedIterator::get):
        (WTF::IndexedIterator::operator++):
        (WTF::IndexedIterator::operator--):
        (WTF::IndexedIterator::operator UnspecifiedBoolType):
        (WTF::IndexedIterator::operator+=):
        (WTF::IndexedIterator::operator-=):
        (WTF::IndexedIterator::operator+):
        (WTF::IndexedIterator::operator-):
        (WTF::IndexedIterator::operator=):
        (WTF::IndexedIterator::operator==):
        (WTF::IndexedIterator::operator!=):
        (WTF::IndexedIterator::operator<):
        (WTF::IndexedIterator::operator<=):
        (WTF::IndexedIterator::operator>):
        (WTF::IndexedIterator::operator>=):
        (WTF::IndexedIterator::operator const_iterator):
        (WTF::IndexedIterator::isSafeToCompare):
        (WTF::IndexedIterator::unsafeGet):
        (WTF::getPtr):
        (WTF::operator-):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::operator<=):
        (WTF::operator>=):
        (WTF::operator<):
        (WTF::operator>):
        (WTF::IndexedIteratorSelector::makeIterator):
        (WTF::IndexedIteratorSelector::makeConstIterator):
        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        * wtf/Vector.h:
        (WTF::Vector::Vector):
        (WTF::Vector::begin):
        (WTF::Vector::end):
        (WTF::OverflowHandler>::Vector):
        (WTF::=):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::appendSlowCase):
        (WTF::OverflowHandler>::uncheckedAppend):
        (WTF::OverflowHandler>::appendVector):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::insertVector):
        (WTF::OverflowHandler>::remove):

2014-11-30  Ryuan Choi  <ryuan.choi@navercorp.com>

        [EFL] Drop support for the EFL 1.7
        https://bugs.webkit.org/show_bug.cgi?id=139114

        Reviewed by Gyuyoung Kim.

        * wtf/efl/EflTypedefs.h: Removed old definitions which EFL 1.7 used.

2014-11-21  Anders Carlsson  <andersca@apple.com>

        Remove the Timer parameters from timer callbacks
        https://bugs.webkit.org/show_bug.cgi?id=138974

        Reviewed by Antti Koivisto.

        * wtf/RunLoopTimer.h:
        (WTF::RunLoopTimer::RunLoopTimer):
        (WTF::RunLoopTimer::fired):

2014-11-18  Chris Dumez  <cdumez@apple.com>

        Have Vector::capacity() return an unsigned instead of a size_t
        https://bugs.webkit.org/show_bug.cgi?id=138842

        Reviewed by Andreas Kling.

        Have Vector::capacity() return an unsigned instead of a size_t as
        capacity is stored as an unsigned internally.

        * wtf/Vector.h:
        (WTF::Vector::capacity):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):

2014-11-18  Geoffrey Garen  <ggaren@apple.com>

        Removed the custom allocator for ListHashSet nodes
        https://bugs.webkit.org/show_bug.cgi?id=138841

        Reviewed by Andreas Kling.

        bmalloc is fast, so we don't need a custom allocator.

        The MallocBench test for linked list node allocation (list_allocate) is
        4.09X faster in bmalloc than TCMalloc. Also, I wrote a stress test to
        add/remove link elements, which modify a ListHashSet on insertion and
        removal, and it was 1% faster / in the noise with bmalloc enabled.

        * wtf/ListHashSet.h:
        (WTF::ListHashSetNode::ListHashSetNode):
        (WTF::ListHashSetTranslator::translate):
        (WTF::U>::ListHashSet):
        (WTF::=):
        (WTF::U>::swap):
        (WTF::U>::~ListHashSet):
        (WTF::U>::size):
        (WTF::U>::capacity):
        (WTF::U>::isEmpty):
        (WTF::U>::first):
        (WTF::U>::removeFirst):
        (WTF::U>::takeFirst):
        (WTF::U>::last):
        (WTF::U>::removeLast):
        (WTF::U>::takeLast):
        (WTF::U>::contains):
        (WTF::U>::remove):
        (WTF::U>::clear):
        (WTF::U>::unlink):
        (WTF::U>::unlinkAndDelete):
        (WTF::U>::appendNode):
        (WTF::U>::prependNode):
        (WTF::U>::insertNodeBefore):
        (WTF::U>::deleteAllNodes):
        (WTF::ListHashSetNodeAllocator::ListHashSetNodeAllocator): Deleted.
        (WTF::ListHashSetNodeAllocator::allocate): Deleted.
        (WTF::ListHashSetNodeAllocator::deallocate): Deleted.
        (WTF::ListHashSetNodeAllocator::pool): Deleted.
        (WTF::ListHashSetNodeAllocator::pastPool): Deleted.
        (WTF::ListHashSetNodeAllocator::inPool): Deleted.
        (WTF::ListHashSetNode::operator new): Deleted.
        (WTF::ListHashSetNode::destroy): Deleted.

2014-11-18  Chris Dumez  <cdumez@apple.com>

        Update the Vector API to deal with unsigned types instead of size_t
        https://bugs.webkit.org/show_bug.cgi?id=138824

        Reviewed by Andreas Kling.

        Update part of the Vector API to deal with unsigned types instead of
        size_t. The Vector class is already using unsigned type for its
        capacity and size data members. However, the Vector API was never
        updated accordingly.

        The rest of the Vector API will be ported in follow-up patches to
        make the change smaller and more easily reviewable.

        * wtf/Forward.h:
        * wtf/Vector.h:
        (WTF::VectorTypeOperations::compare):
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBufferBase::shouldReallocateBuffer):
        (WTF::VectorBufferBase::reallocateBuffer):
        (WTF::VectorBufferBase::capacity):
        (WTF::VectorBufferBase::VectorBufferBase):
        (WTF::VectorBuffer::VectorBuffer):
        (WTF::VectorBuffer::allocateBuffer):
        (WTF::VectorBuffer::tryAllocateBuffer):
        (WTF::VectorBuffer::shouldReallocateBuffer):
        (WTF::VectorBuffer::reallocateBuffer):
        (WTF::VectorBuffer::swap):
        (WTF::VectorBuffer::swapInlineBuffer):
        (WTF::VectorBuffer::swapInlineBuffers):
        (WTF::Vector::Vector):
        (WTF::Vector::at):
        (WTF::Vector::operator[]):
        (WTF::OverflowHandler>::find):
        (WTF::OverflowHandler>::reverseFind):
        (WTF::OverflowHandler>::fill):
        (WTF::OverflowHandler>::expandCapacity):
        (WTF::OverflowHandler>::tryExpandCapacity):
        (WTF::OverflowHandler>::resize):
        (WTF::OverflowHandler>::resizeToFit):
        (WTF::OverflowHandler>::shrink):
        (WTF::OverflowHandler>::grow):
        (WTF::OverflowHandler>::reserveCapacity):
        (WTF::OverflowHandler>::tryReserveCapacity):
        (WTF::OverflowHandler>::reserveInitialCapacity):
        (WTF::OverflowHandler>::shrinkCapacity):
        (WTF::OverflowHandler>::append):
        (WTF::OverflowHandler>::tryAppend):
        (WTF::OverflowHandler>::insert):
        (WTF::OverflowHandler>::insertVector):
        (WTF::OverflowHandler>::remove):
        (WTF::OverflowHandler>::reverse):
        (WTF::OverflowHandler>::checkConsistency):
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::adopt):
        (WTF::equalIgnoringNullity):
        * wtf/text/StringView.h:
        (WTF::append):
        * wtf/text/WTFString.h:

2014-11-18  peavo@outlook.com  <peavo@outlook.com>

        [WinCairo] Compile errors when GStreamer is enabled.
        https://bugs.webkit.org/show_bug.cgi?id=137000

        Reviewed by Philippe Normand.

        MSVC does not allow the keyword default on move constructors and move assignment operators.

        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::socketCallback):
        * wtf/gobject/GMainLoopSource.h:
        (WTF::GMainLoopSource::Context::operator=):

2014-11-17  Anders Carlsson  <andersca@apple.com>

        Fix WTF build with newer versions of clang.
        <rdar://problem/18978705>

        * wtf/HashTable.h:
        (WTF::removeIterator):
        * wtf/dtoa/utils.h:
        (WTF::double_conversion::BitCast):

2014-11-13  Myles C. Maxfield  <mmaxfield@apple.com>

        Allow constructing a base PassRef with a derived Ref
        https://bugs.webkit.org/show_bug.cgi?id=138701

        Reviewed by Andreas Kling

        * wtf/PassRef.h:
        (WTF::PassRef<T>::PassRef):

2014-11-12  Ryuan Choi  <ryuan.choi@navercorp.com>

        [EFL] Fix the build with EFL 1.12
        https://bugs.webkit.org/show_bug.cgi?id=138245

        Reviewed by Gyuyoung Kim.

        * wtf/efl/UniquePtrEfl.h:
        Removed Evas_GL.h from UniquePtrEfl.h, which is commonly included, because
        it should not be included with official GL headers.

2014-11-12  Mark Lam  <mark.lam@apple.com>

        Rename USE(MASM_PROBE) to ENABLE(MASM_PROBE).
        <https://webkit.org/b/138661>

        Reviewed by Michael Saboff.

        Also move the switch for enabling the use of MASM_PROBE from JavaScriptCore's
        config.h to WTF's Platform.h.  This ensures that the setting is consistently
        applied even when building WebCore parts as well.

        * wtf/Platform.h:

2014-11-09  Antti Koivisto  <antti@apple.com>

        Remove BloomFilter size limit
        https://bugs.webkit.org/show_bug.cgi?id=138549

        Reviewed by Andreas Kling.

        * wtf/BloomFilter.h: Remove the static_assert, the code works fine with somewhat larger sizes.

2014-11-09  Chris Dumez  <cdumez@apple.com>

        Add a more correct way to compare floating point numbers and use it
        https://bugs.webkit.org/show_bug.cgi?id=138527

        Reviewed by Darin Adler.

        To compare floating point numbers in the code base, we would often rely
        on the following check:
        std::abs(a - b) <= std::numeric_limits<T>::epsilon()

        However, this is not correct for arbitrary floating point values, and
        will fail for values that are not close to zero.

        This patch introduces a WTF::areEssentiallyEqual() templated function
        that can only be called with floating point types and relies on the
        following formula from [1][2] that defines u as being "essentially
        equal" to v if: | u - v | / |u| <= e and | u - v | / |v| <= e

        [1] Knuth, D. E. "Accuracy of Floating Point Arithmetic." The Art of
            Computer Programming. 3rd ed. Vol. 2. Boston: Addison-Wesley, 1998.
            229-45.
        [2] http://www.boost.org/doc/libs/1_34_0/libs/test/doc/components/test_tools/floating_point_comparison.html

        * wtf/MathExtras.h:
        (WTF::safeFPDivision):
        (WTF::areEssentiallyEqual):
        (WTF::withinEpsilon): Deleted.

2014-11-08  Darin Adler  <darin@apple.com>

        Replace FileThread class with a single function
        https://bugs.webkit.org/show_bug.cgi?id=138282

        Reviewed by Alexey Proskuryakov.

        * wtf/MessageQueue.h: Made queue work on any type and not require wrapping
        everything in a unique_ptr.

        * wtf/Threading.cpp:
        (WTF::threadEntryPoint): Changed to use a std::function instead of a function pointer.
        (WTF::createThread): Add a version that takes a std::function. Reimplemented the
        old version using lambdas. Removed the obsolete versions that were there just to support
        binary compatibility with very old versions of Safari.

        * wtf/Threading.h: Removed an incorrect license header that covers code that was long ago
        moved to a different file. Changed createThread to take a std::function instead of a function
        pointer and data pointer. Moved internal functions after public functions.

2014-11-05  Chris Dumez  <cdumez@apple.com>

        Assertion hit DOMTimer::updateTimerIntervalIfNecessary()
        https://bugs.webkit.org/show_bug.cgi?id=138440

        Reviewed by Geoffrey Garen.

        Move the withinEpsilon() function to WTF to avoid code duplication.

        * wtf/MathExtras.h:
        (WTF::withinEpsilon):

2014-11-05  Chris Dumez  <cdumez@apple.com>

        Allow constructing a PassRef from a Ref
        https://bugs.webkit.org/show_bug.cgi?id=138389

        Reviewed by Andreas Kling.

        Allow constructing a PassRef from a Ref, similarly to PassRefPtr that
        can be constructed from a RefPtr already. This avoids having to call
        Ref::get() and simplifies the code a bit.

        * wtf/PassRef.h:
        (WTF::PassRef<T>::PassRef):

2014-11-05  Dan Bernstein  <mitz@apple.com>

        Remove the unused deletion UI feature
        https://bugs.webkit.org/show_bug.cgi?id=138442

        Rubber-stamped by Alexey Proskuryakov.

        * wtf/FeatureDefines.h: Removed definition of ENABLE_DELETION_UI.

2014-11-03  Dean Jackson  <dino@apple.com>

        Add ENABLE_FILTERS_LEVEL_2 feature guard.
        https://bugs.webkit.org/show_bug.cgi?id=138362

        Reviewed by Tim Horton.

        Add a new feature define for Level 2 of CSS Filters.
        http://dev.w3.org/fxtf/filters-2/

        * wtf/FeatureDefines.h:

2014-11-05  Csaba Osztrogonác  <ossy@webkit.org>

        Enable ARMv7 disassembler for all platforms
        https://bugs.webkit.org/show_bug.cgi?id=138415

        Reviewed by Darin Adler.

        * wtf/Platform.h:

2014-11-04  Chris Dumez  <cdumez@apple.com>

        Add ptr() method to Ref class
        https://bugs.webkit.org/show_bug.cgi?id=138361

        Reviewed by Darin Adler.

        It is a very common pattern in our code base to get a pointer from a
        Ref object. Previously, we have to call Ref.get() and take its address
        which is not very nice. This patch adds a ptr() method to Ref class
        to simplify the code a bit.

        * wtf/PassRef.h:
        (WTF::PassRef<T>::ptr):
        * wtf/Ref.h:
        (WTF::Ref::ptr):
        (WTF::GetPtrHelper<Ref<T>>::getPtr):

2014-11-04  Dániel Bátyai  <dbatyai.u-szeged@partner.samsung.com>

        ATTR_USED incorrectly applying to Clang
        https://bugs.webkit.org/show_bug.cgi?id=138313

        Reviewed by Csaba Osztrogonác.

        ATTR_USED was only intended for GCC. Also limit it to ENABLE(FTL_NATIVE_CALL_INLINING)
        since that's the only thing it's needed for.

        * wtf/Platform.h:

2014-11-03  Chris Dumez  <cdumez@apple.com>

        Allow implicit conversion from Ref<T> to T&
        https://bugs.webkit.org/show_bug.cgi?id=138331

        Reviewed by Andreas Kling.

        Allow implicit conversion from Ref<T> to T& to reduce the amount of
        Ref<>::get() calls in the code and increase readability. Unlike for
        RefPtr, doing this for Ref should not be error prone.

        * wtf/Ref.h:
        (WTF::Ref::operator T&):
        (WTF::Ref::operator const T&):
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::Holder::runLoop):

2014-10-31  Jeffrey Pfau  <jpfau@apple.com>

        Unreviewed, fix ASan build after r175382

        * wtf/SizeLimits.cpp:

2014-10-31  Geoffrey Garen  <ggaren@apple.com>

        Rolled in r175389.

        WebKit was failing to build 32bit on some Apple internal systems because
        those systems were configured to build bmalloc 64-bit-only. Those systems
        have been updated to build bmalloc as a universal binary, so everything
        should work fine now.

        The relevant setting is controlled by an environment variable on the
        build system, and not by the project file in the source tree, so there's
        no new code change here.

                Enable bmalloc in 32bit builds
                https://bugs.webkit.org/show_bug.cgi?id=138232

                Reviewed by Andreas Kling.

        * wtf/FastMalloc.cpp:

2014-10-31  Lucas Forschler  <lforschler@apple.com>

        Unreviewed rollout r175389.
        
2014-10-30  Dana Burkart  <dburkart@apple.com>

        <rdar://problem/18821260> Prepare for the mysterious future

        Reviewed by Lucas Forschler.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2014-10-30  Geoffrey Garen  <ggaren@apple.com>

        Enable bmalloc in 32bit builds
        https://bugs.webkit.org/show_bug.cgi?id=138232

        Reviewed by Andreas Kling.

        Seems to work fine.

        * wtf/FastMalloc.cpp:

2014-10-30  Jeffrey Pfau  <jpfau@apple.com>

        ASSERT(!m_deletionHasBegun) in RefCounted.h should be ASSERT_WITH_SECURITY_IMPLICATION
        https://bugs.webkit.org/show_bug.cgi?id=138141

        Reviewed by Alexey Proskuryakov.

        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref):
        (WTF::RefCountedBase::relaxAdoptionRequirement):
        (WTF::RefCountedBase::derefBase):
        (WTF::adopted):

2014-10-28  Milan Crha  <mcrha@redhat.com>

        Use constants from wtf/MathExtras.h
        https://bugs.webkit.org/show_bug.cgi?id=137967

        Reviewed by Darin Adler.

        * wtf/MathExtras.h:

2014-10-28  Tibor Meszaros  <tmeszaros.u-szeged@partner.samsung.com>

        [EFL] Remove unnecessary defines from OptionsEfl.cmake
        https://bugs.webkit.org/show_bug.cgi?id=138132

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2014-10-27  Chris Dumez  <cdumez@apple.com>

        Use separate HashMaps for common and uncommon headers in HTTPHeaderMap
        https://bugs.webkit.org/show_bug.cgi?id=138079

        Reviewed by Anders Carlsson.

        Add HashTraits for C++11 strong enum types. Using integer HashTraits for
        strong enums would be inconvenient as it would require casting between
        integer and strong enum types.

        * wtf/HashTraits.h:
        (WTF::StrongEnumHashTraits::emptyValue):
        (WTF::StrongEnumHashTraits::constructDeletedValue):
        (WTF::StrongEnumHashTraits::isDeletedValue):

2014-10-25  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: timelines should not count time elapsed while paused in the debugger
        https://bugs.webkit.org/show_bug.cgi?id=136351

        Unreviewed, follow-up fix after r175203. The debugger agent should not assume
        that the inspector environment's stopwatch has already been started.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::isActive): Added. Allow peeking at the stopwatch state.

2014-10-18  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: timelines should not count time elapsed while paused in the debugger
        https://bugs.webkit.org/show_bug.cgi?id=136351

        Reviewed by Timothy Hatcher.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Stopwatch.h: Added. This implements a refcounted monotonic stopwatch.
        (WTF::Stopwatch::create):
        (WTF::Stopwatch::Stopwatch):
        (WTF::Stopwatch::reset):
        (WTF::Stopwatch::start):
        (WTF::Stopwatch::stop):
        (WTF::Stopwatch::elapsedTime):

2014-10-23  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Provide a way to have alternate inspector agents
        https://bugs.webkit.org/show_bug.cgi?id=137901

        Reviewed by Brian Burg.

        * wtf/FeatureDefines.h:

2014-10-23  Alberto Garcia  <berto@igalia.com>

        [GTK] Fix build on Hurd
        https://bugs.webkit.org/show_bug.cgi?id=138003

        Reviewed by Carlos Garcia Campos.

        * wtf/InlineASM.h:
        * wtf/Platform.h:

2014-10-22  Byungseon Shin  <sun.shin@lge.com>

        String(new Date(Mar 30 2014 01:00:00)) is wrong in CET
        https://bugs.webkit.org/show_bug.cgi?id=130967

        Reviewed by Mark Lam.

        By definition of calculateLocalTimeOffset, input time should be UTC time.
        But there are many cases when input time is based on local time.
        So, it gives erroneous results while calculating offset of DST boundary time.
        By adding a argument to distinguish UTC and local time, we can get the correct offset.

        * wtf/DateMath.cpp:
        (WTF::calculateLocalTimeOffset):
        (WTF::parseDateFromNullTerminatedCharacters):
        Compensate time offset depends on UTC time or local time.
        * wtf/DateMath.h:
        Add argument to differenciate UTC or local time.

2014-10-21  Dániel Bátyai  <dbatyai.u-szeged@partner.samsung.com>

        Fix FTL Native Inlining for EFL
        https://bugs.webkit.org/show_bug.cgi?id=137774

        Reviewed by Michael Saboff.

        Updated guard definition for Native Inlining, and added an attribute define for marking functions
        that should not be left out of the symbol table.

        * wtf/Platform.h:

2014-10-20  Chris Dumez  <cdumez@apple.com>

        Use is<>() / downcast<>() for Accessibility objects
        https://bugs.webkit.org/show_bug.cgi?id=137286

        Reviewed by Darin Adler.

        Remove the legacy TYPE_CASTS_BASE() macro now that it is no longer
        used.

        * wtf/Assertions.h:

2014-10-18  Dan Bernstein  <mitz@apple.com>

        WorkQueue dispatches functions but isn’t a FunctionDispatcher
        https://bugs.webkit.org/show_bug.cgi?id=137853

        Reviewed by Anders Carlsson.

        * wtf/FunctionDispatcher.h: Added header guards.

2014-10-17  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Add API to GMainLoopSource to schedule sources after a delay in microseconds
        https://bugs.webkit.org/show_bug.cgi?id=137782

        Reviewed by Sergio Villar Senin.

        In some cases when we have a double with the time in seconds, the
        conversion to milliseconds ends up truncating the value to 0, and
        the source scheduled immediately.

        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::createMicrosecondsTimeoutSource): Use a custom timeout
        source that handles the interval in microseconds instead of milliseconds.
        (WTF::GMainLoopSource::scheduleAfterDelay): Use MicrosecondsTimeoutSource.
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy): Ditto.
        * wtf/gobject/GMainLoopSource.h:

2014-10-17  Dan Bernstein  <mitz@apple.com>

        Reverted incorrect build fix attempt.

        * wtf/Threading.cpp:

2014-10-17  Dan Bernstein  <mitz@apple.com>

        Tried to fix the Yosemite build.

        * wtf/Threading.cpp:

2014-10-16  Dan Bernstein  <mitz@apple.com>

        OSObjectPtr is missing leakRef()
        https://bugs.webkit.org/show_bug.cgi?id=137798

        Reviewed by Sam Weinig.

        * wtf/OSObjectPtr.h:

2014-10-14  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed gardening. Ignore Visual Studio *.sdf files.

        * WTF.vcxproj: Modified property svn:ignore.

2014-10-13  Antti Koivisto  <antti@apple.com>

        Add StringCapture helper for thread-safe lambda capture
        https://bugs.webkit.org/show_bug.cgi?id=137664

        Reviewed by Anders Carlsson.

        There is currently no clean way to capture a String in a thread-safe manner. This will now work:

        StringCapture stringCapture(string);
        auto lambdaThatRunsInAnotherThread = [stringCapture] { String string = stringCapture.string(); ... }

        This type won't be necessary with C++14 initialized lambda capture: [string = string.isolatedCopy()].

        * wtf/text/WTFString.h:
        (WTF::StringCapture::StringCapture): Create isolated copy in copy-constructor.
        (WTF::StringCapture::string):

2014-10-11  KwangHyuk Kim  <hyuki.kim@samsung.com>

        [EFL] Enable WebP support.
        https://bugs.webkit.org/show_bug.cgi?id=136156

        Reviewed by Gyuyoung Kim.

        Enable WTF_USE_WEBP macro for WK2 Efl.

        * wtf/Platform.h:

2014-10-11  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Split GMainLoopSource moving thread safe implementation to its own class GThreadSafeMainLoopSource
        https://bugs.webkit.org/show_bug.cgi?id=137485

        Reviewed by Sergio Villar Senin.

        We made GMainLoopSource thread safe, but in most of the cases we
        know the sources are used by a single thread, which has an impact
        in the performance (mutex, GCancellable, etc.). The new class
        GThreadSafeMainLoopSource inherits from GMainLoopSource overriding
        the new virtual methods and calling the parent for the common code.
        GMutexLocker now supports recursive mutexes, it's a template that
        can wrap a GMutex or a GRecMutex. GThreadSafeMainLoopSource uses a
        recursive mutex using the new GMutexLocker API.

        * wtf/PlatformEfl.cmake: Add new file to compilation.
        * wtf/PlatformGTK.cmake: Ditto.
        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::GMainLoopSource):
        (WTF::GMainLoopSource::~GMainLoopSource):
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::GMainLoopSource::prepareVoidCallback):
        (WTF::GMainLoopSource::finishVoidCallback):
        (WTF::GMainLoopSource::voidCallback):
        (WTF::GMainLoopSource::prepareBoolCallback):
        (WTF::GMainLoopSource::finishBoolCallback):
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::socketCallback):
        (WTF::GMainLoopSource::cancelWithoutLocking): Deleted.
        * wtf/gobject/GMainLoopSource.h:
        * wtf/gobject/GMutexLocker.h:
        (WTF::MutexWrapper<GMutex>::lock):
        (WTF::MutexWrapper<GMutex>::unlock):
        (WTF::MutexWrapper<GRecMutex>::lock):
        (WTF::MutexWrapper<GRecMutex>::unlock):
        (WTF::GMutexLocker::GMutexLocker):
        (WTF::GMutexLocker::lock):
        (WTF::GMutexLocker::unlock):
        * wtf/gobject/GThreadSafeMainLoopSource.cpp: Added.
        (WTF::GThreadSafeMainLoopSource::GThreadSafeMainLoopSource):
        (WTF::GThreadSafeMainLoopSource::~GThreadSafeMainLoopSource):
        (WTF::GThreadSafeMainLoopSource::cancel):
        (WTF::GThreadSafeMainLoopSource::schedule):
        (WTF::GThreadSafeMainLoopSource::scheduleAfterDelay):
        (WTF::GThreadSafeMainLoopSource::prepareVoidCallback):
        (WTF::GThreadSafeMainLoopSource::finishVoidCallback):
        (WTF::GThreadSafeMainLoopSource::voidCallback):
        (WTF::GThreadSafeMainLoopSource::prepareBoolCallback):
        (WTF::GThreadSafeMainLoopSource::finishBoolCallback):
        (WTF::GThreadSafeMainLoopSource::boolCallback):
        * wtf/gobject/GThreadSafeMainLoopSource.h: Added.

2014-10-09  Dean Jackson  <dino@apple.com>

        Remove ENABLE_CSS3_CONDITIONAL_RULES
        https://bugs.webkit.org/show_bug.cgi?id=137571

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2014-10-09  Akos Kiss  <akiss@inf.u-szeged.hu>

        Enable ARM64 disassembler for all platforms
        https://bugs.webkit.org/show_bug.cgi?id=137560

        Reviewed by Michael Saboff.

        Remove PLATFORM conditions from around WTF_USE_ARM64_DISASSEMBLER since
        the ARM64 disassembler has no platform dependencies anymore.

        * wtf/Platform.h:

2014-10-08  peavo@outlook.com  <peavo@outlook.com>

        [WinCairo] Enable JIT on 32-bit.
        https://bugs.webkit.org/show_bug.cgi?id=137521

        Reviewed by Mark Lam.

        Enable JIT on Windows 32-bit, but disable it at runtime if SSE2 is not present.

        * wtf/Platform.h:

2014-10-08  Brent Fulgham  <bfulgham@apple.com>

        [Win] Resolve warnings about missing __has_include macro under MSVC
        https://bugs.webkit.org/show_bug.cgi?id=137524

        Reviewed by Anders Carlsson.

        * wtf/Compiler.h: Provide a dummy implementation of __has_include that
        avoids the warning without changing compile behavior.

2014-10-07  Brent Fulgham  <bfulgham@apple.com>

        [Win] Resolve some MSVC static analyzer warnings
        https://bugs.webkit.org/show_bug.cgi?id=137504

        Reviewed by Dean Jackson.

        * wtf/GregorianDateTime.cpp:
        (WTF::GregorianDateTime::setToCurrentLocalTime): Properly handle
        possible timezone error case.
        * wtf/OSAllocatorWin.cpp:
        (WTF::OSAllocator::decommit): Silence a spurious warning about using
        MEM_DECOMMIT instead of MEM_RELEASE.
        * wtf/ThreadingWin.cpp: Silence a spurious warning about how the
        tryLock method is implemented.

2014-10-07  Christophe Dumez  <cdumez@apple.com>

        [WK2] Use is<>() / downcast<>() for DrawingAreaProxy subclasses
        https://bugs.webkit.org/show_bug.cgi?id=137477

        Reviewed by Andreas Kling.

        Rename wtf/cf/TypeCasts.h to wtf/cf/TypeCastsCF.h to avoid conflict
        with wtf/TypeCasts.h. They were using the same #ifndef guard and it
        was causing problems when both were included in the same context.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/cf/TypeCastsCF.h: Renamed from Source/WTF/wtf/cf/TypeCasts.h.
        (WTF::dynamic_cf_cast):
        (WTF::checked_cf_cast):

2014-10-07  Anders Carlsson  <andersca@apple.com>

        Try to fix the Mountain Lion build.

        * wtf/text/StringView.h:
        (WTF::StringView::underlyingStringIsValid):
        (WTF::StringView::setUnderlyingString):
        (WTF::StringView::invalidate):

2014-10-07  Anders Carlsson  <andersca@apple.com>

        Use "1", not "true".

        * wtf/text/StringView.h:

2014-10-07  Anders Carlsson  <andersca@apple.com>

        Temporarily disable the StringView lifetime checking.

        * wtf/text/StringView.h:

2014-10-07  Anders Carlsson  <andersca@apple.com>

        Another build fix attempt.

        * wtf/text/StringView.cpp:
        (WTF::StringView::UnderlyingString::UnderlyingString):

2014-10-07  Anders Carlsson  <andersca@apple.com>

        Try to fix the Windows build.

        * wtf/text/StringView.cpp:
        (WTF::StringView::UnderlyingString::UnderlyingString):

2014-10-06  Darin Adler  <darin@apple.com>

        Make StringView check the lifetime of the StringImpl it's created from
        https://bugs.webkit.org/show_bug.cgi?id=137202

        Reviewed by Anders Carlsson.

        * WTF.vcxproj/WTF.vcxproj: Added StringView.cpp.
        * WTF.vcxproj/WTF.vcxproj.filters: Added StringView.cpp.
        * WTF.xcodeproj/project.pbxproj: Added StringView.cpp.
        * wtf/CMakeLists.txt: Added StringView.cpp.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl): Call StringView::invalidate.

        * wtf/text/StringView.cpp: Added.
        (WTF::underlyingStrings): Returns map from StringImpl to the underlying
        string object used by StringView to track validity.
        (WTF::StringView::invalidate): Mark the underlying string object invalid,
        and remove it from the map, so any future StringImpl will get a new one,
        even if it has the same pointer.
        (WTF::StringView::underlyingStringIsValid): Return true only if the
        underlying string is still valid.
        (WTF::StringView::setUnderlyingString): Create and manage reference counts
        of underlying string objects as needed.

        * wtf/text/StringView.h: Moved function bodies out of the class definition,
        so we can now read a clean class definition to see the class design and what
        functions it offers.
        (WTF::StringView::StringView): Added a comment to the default constructor.
        Also added copy and move constructors so they can call setUnderlyingString
        and assert the underlying string is valid as needed, replacing the
        compiler-generated ones.
        (WTF::StringView::~StringView): Added a call to setUnderlyingString.
        (WTF::StringView::operator=): Added these assignment operators with the same
        job as the constructors above.
        (WTF::StringView::initialize): Added a comment.
        (WTF::StringView::characters8): Added an assertion that the underlying
        string is valid.
        (WTF::StringView::characters16): Ditto.
        (WTF::StringView::substring): Added code to propagate the underlying string
        from the original string to the substring.
        (WTF::StringView::invalidate): Inline empty version of this function for
        non-debug builds.
        (WTF::StringView::underlyingStringIsValid): Ditto.
        (WTF::StringView::setUnderlyingString): Ditto.

2014-10-06  Brent Fulgham  <bfulgham@apple.com>

        [Win] DateMath's calculateUTFOffset does not account for DST.
        https://bugs.webkit.org/show_bug.cgi?id=137458
        <rdar://problem/18559172>

        Reviewed by Geoffrey Garen.

        Check the return value of GetTimeZoneInformation and use the
        proper bias against UTC (depending on whether we are in daylight
        savings time, or standard time).

        Also, handle possible error cases in the FileTimeToSystemTime
        and SystemTimeToTzSpecificLocalTime, rather than using potentially
        uninitialized values.

        * wtf/DateMath.cpp:
        (WTF::calculateUTCOffset): Use proper daylight-savings-time state.
        (WTF::calculateDSTOffset): Avoid uninitialized data due to failing
        API calls.

2014-10-06  Christophe Dumez  <cdumez@apple.com>

        Add is<>() / downcast<>() support for RenderObject subclasses
        https://bugs.webkit.org/show_bug.cgi?id=137424

        Reviewed by Benjamin Poulain.

        Handle correctly calling TypeCastTraits<ExpectedType, ArgType>::isOfType(ArgType&)
        with ExpectedType being a base class of ArgType (or the same as ArgType). The
        previous template specialization was only meant to support the case where
        ExpectedType is the same as ArgType but even that wasn't working as the compiler
        would complain about ambiguous partial specializations. Since this is needed by
        RenderTraversal functions, this patch adds an extra isBaseType template parameter
        to TypeCastTraits to resolve the ambiguity and relies on std::is_base_of for the
        detection.

        * wtf/TypeCasts.h:

2014-10-06  Brent Fulgham  <bfulgham@apple.com>

        [Win] Project file gardening.

        * WTF.vcxproj/WTF.vcxproj.filters: Move HashMethod.h and
        FastBitVector.cpp to proper places in hierarchy.

2014-10-04  Brian J. Burg  <burg@cs.washington.edu>

        Unreviewed, rolling out r174319.

        Causes assertions in fast/profiler tests. Needs nontrivial
        investigation, will take offline.

        Reverted changeset:

        "Web Inspector: timelines should not count time elapsed while
        paused in the debugger"
        https://bugs.webkit.org/show_bug.cgi?id=136351
        http://trac.webkit.org/changeset/174319

2014-10-04  Brian J. Burg  <burg@cs.washington.edu>

        Web Inspector: timelines should not count time elapsed while paused in the debugger
        https://bugs.webkit.org/show_bug.cgi?id=136351

        Reviewed by Timothy Hatcher.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Stopwatch.h: Added. This implements a refcounted monotonic stopwatch.
        (WTF::Stopwatch::reset):
        (WTF::Stopwatch::start):
        (WTF::Stopwatch::stop):

2014-10-04  Filip Pizlo  <fpizlo@apple.com>

        FTL should sink PutLocals
        https://bugs.webkit.org/show_bug.cgi?id=137168

        Reviewed by Oliver Hunt.
        
        Make the set bits of a BitVector iterable.

        * wtf/BitVector.h:
        (WTF::BitVector::SetBitsIterable::SetBitsIterable):
        (WTF::BitVector::SetBitsIterable::iterator::iterator):
        (WTF::BitVector::SetBitsIterable::iterator::operator*):
        (WTF::BitVector::SetBitsIterable::iterator::operator++):
        (WTF::BitVector::SetBitsIterable::iterator::operator==):
        (WTF::BitVector::SetBitsIterable::iterator::operator!=):
        (WTF::BitVector::SetBitsIterable::begin):
        (WTF::BitVector::SetBitsIterable::end):
        (WTF::BitVector::setBits):

2014-10-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r174275.
        https://bugs.webkit.org/show_bug.cgi?id=137408

        Build failures on the internal bots. (Requested by dethbakin
        on #webkit).

        Reverted changeset:

        "FTL should sink PutLocals"
        https://bugs.webkit.org/show_bug.cgi?id=137168
        http://trac.webkit.org/changeset/174275

2014-10-03  Christophe Dumez  <cdumez@apple.com>

        Add TypeCasts.h to xcodeproject
        https://bugs.webkit.org/show_bug.cgi?id=137403

        Reviewed by Benjamin Poulain.

        Add TypeCasts.h to xcodeproject.

        * WTF.xcodeproj/project.pbxproj:

2014-09-28  Filip Pizlo  <fpizlo@apple.com>

        FTL should sink PutLocals
        https://bugs.webkit.org/show_bug.cgi?id=137168

        Reviewed by Oliver Hunt.
        
        Make the set bits of a BitVector iterable.

        * wtf/BitVector.h:
        (WTF::BitVector::SetBitsIterable::SetBitsIterable):
        (WTF::BitVector::SetBitsIterable::iterator::iterator):
        (WTF::BitVector::SetBitsIterable::iterator::operator*):
        (WTF::BitVector::SetBitsIterable::iterator::operator++):
        (WTF::BitVector::SetBitsIterable::iterator::operator==):
        (WTF::BitVector::SetBitsIterable::iterator::operator!=):
        (WTF::BitVector::SetBitsIterable::begin):
        (WTF::BitVector::SetBitsIterable::end):
        (WTF::BitVector::setBits):

2014-10-03  Myles C. Maxfield  <mmaxfield@apple.com>

        Support modern for loops over StringViews
        https://bugs.webkit.org/show_bug.cgi?id=137165

        Reviewed by Darin Adler.

        This patch adds two functions, codePoints() and codeUnits(), on StringView.
        These two functions return small objects which have begin() and end() functions,
        which means it can be used by the modern for loop style. This small class also
        has an inner iterator class which can be incremented, dereferenced, and
        compared.

        Using these new objects looks like this:
        for (UChar codeunit : stringView.codeUnits()) { } and
        for (UChar32 codepoint : stringView.codePoints()) { }.

        * wtf/text/StringView.h:
        (WTF::StringView::codepoints):
        (WTF::StringView::codeunits):
        (WTF::StringViewCodePointIterator::StringViewCodePointIterator):
        (WTF::StringViewCodePointIterator::Iterator::Iterator):
        (WTF::StringViewCodePointIterator::Iterator::operator*):
        (WTF::StringViewCodePointIterator::Iterator::operator!=):
        (WTF::StringViewCodeUnitIterator::StringViewCodeUnitIterator):
        (WTF::StringViewCodeUnitIterator::Iterator::Iterator):
        (WTF::StringViewCodeUnitIterator::Iterator::operator*):
        (WTF::StringViewCodeUnitIterator::Iterator::operator!=):

2014-09-28  Sam Weinig  <sam@webkit.org>

        Remove RefPtrHashMap
        https://bugs.webkit.org/show_bug.cgi?id=137200

        Reviewed by Darin Adler.

        HashMap now has all the features of the RefPtr specialization of HashMap
        (which lived in RefPtrHashMap.h) and is in fact more efficient when moving
        items into it. For instance:

        For HashMap<RefPtr<Foo>, Bar> map:

        RefPtr<Foo> foo = ...;
        map.add(WTF::move(foo), Bar());

        will now not cause a ref() / deref(), but will successfully move the item in
        without churn. The same is true if foo.release() was used.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Remove references to RefPtrHashMap.h.

        * wtf/RefPtrHashMap.h: Removed.

        * wtf/HashMap.h:
        Remove #include of RefPtrHashMap.h and add inlineGet to match the interface
        exposed by the RefPtrHashMap specialization.

2014-10-02  Anders Carlsson  <andersca@apple.com>

        Add back debugging/testing code that I accidentally removed.

        * wtf/text/StringConcatenate.h:
        (WTF::StringTypeAdapter<String>::writeTo):

2014-10-02  Anders Carlsson  <andersca@apple.com>

        Simplify StringTypeAdapter templates
        https://bugs.webkit.org/show_bug.cgi?id=137356

        Reviewed by Andreas Kling.

        * wtf/text/StringConcatenate.h:
        Use StringView for copying characters. Use inheritance for char* vs const char* etc. Make all StringAdapter member functions const.

        * wtf/text/StringView.h:
        Move enough functions out of line so we can include WTFString.h after the StringView class definition.

2014-10-01  Christophe Dumez  <cdumez@apple.com>

        Have is<>(T*) function do a null check on the pointer argument
        https://bugs.webkit.org/show_bug.cgi?id=137333

        Reviewed by Gavin Barraclough.

        Have is<>(T*) function do a null check on the argument instead of a
        simple assertion. This makes sense for 2 reasons:
        1. It is more consistent with downcast<>(T*), which will succeed even
           if the argument is a nullptr.
        2. It simplifies the code a bit as it gets rid of a lot of explicit
           null checks.

        * wtf/TypeCasts.h:
        (WTF::is):

2014-10-02  Daniel Bates  <dabates@apple.com>

        Clean up: Move XPC forward declarations in JavaScriptCore to WTF SPI wrapper header
        https://bugs.webkit.org/show_bug.cgi?id=137277

        Reviewed by Alexey Proskuryakov.

        Towards centralizing the declarations of XPC functions used in JavaScriptCore
        and WebKit2, add a header that wraps these function declarations called XPCSPI.h
        and use it instead of including the corresponding XPC API/SPI headers/forward
        declaring XPC functions. This will also aid in the effort to make WebKit2 build
        for iOS with the public iOS SDK.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/XPCSPI.h: Added.

2014-10-01  Christophe Dumez  <cdumez@apple.com>

        Unreviewed build fix after r174193.

        Adding a return statement as that function is returning a boolean.

        * wtf/TypeCasts.h:
        (WTF::TypeCastTraits::isOfType):

2014-10-01  Christophe Dumez  <cdumez@apple.com>

        Fail better when is<>() / downcast<>() is used for an unsupported type
        https://bugs.webkit.org/show_bug.cgi?id=137323

        Reviewed by Benjamin Poulain.

        We should fail better when is<>() / downcast<>() is used for an
        unsupported type (i.e. a type that doesn't have the needed
        TypeCastTraits template specialization). Previously, we would get an
        obscure linking error, which was sub-optimal.

        With this patch, you would now hit a static_assert() at build time if
        you tried to use is<>() / downcast<>() for a type that did not have the
        needed template specialization. There is also a helpful comment above
        the assertion letting the developer know how to add the needed template
        specialization.

        * wtf/TypeCasts.h:
        (WTF::TypeCastTraits::isOfType):

2014-10-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r174180, r174183, and r174186.
        https://bugs.webkit.org/show_bug.cgi?id=137320

        Broke the Mac MountainLion build. Will investigate offline.
        (Requested by dydz on #webkit).

        Reverted changesets:

        "Clean up: Move XPC forward declarations in JavaScriptCore to
        WTF SPI wrapper header"
        https://bugs.webkit.org/show_bug.cgi?id=137277
        http://trac.webkit.org/changeset/174180

        "Attempt to fix the build after
        <https://trac.webkit.org/changeset/174180>"
        https://bugs.webkit.org/show_bug.cgi?id=137277
        http://trac.webkit.org/changeset/174183

        "Another attempt to fix the Mac build after
        <https://trac.webkit.org/changeset/174180>"
        https://bugs.webkit.org/show_bug.cgi?id=137277
        http://trac.webkit.org/changeset/174186

2014-10-01  Daniel Bates  <dabates@apple.com>

        Another attempt to fix the Mac build after <https://trac.webkit.org/changeset/174180>
        (https://bugs.webkit.org/show_bug.cgi?id=137277)

        Include header AvailabilityMacros.h instead of Availability.h, which actually defines the
        macro __MAC_OS_X_VERSION_MIN_REQUIRED.

        * wtf/spi/darwin/XPCSPI.h:

2014-10-01  Daniel Bates  <dabates@apple.com>

        Attempt to fix the build after <https://trac.webkit.org/changeset/174180>
        (https://bugs.webkit.org/show_bug.cgi?id=137277)

        Include header <Availability.h> for the definition of __MAC_OS_X_VERSION_MIN_REQUIRED.
        Also, we want to define CONST_ON_OR_AFTER_MAC_OS_X_VERSION_1090 to be const when building
        on iOS.

        * wtf/spi/darwin/XPCSPI.h:

2014-10-01  Daniel Bates  <dabates@apple.com>

        Clean up: Move XPC forward declarations in JavaScriptCore to WTF SPI wrapper header
        https://bugs.webkit.org/show_bug.cgi?id=137277

        Reviewed by Alexey Proskuryakov.

        Towards centralizing the declarations of XPC functions used in JavaScriptCore
        and WebKit2, add a header that wraps these function declarations called XPCSPI.h
        and use it instead of including the corresponding XPC API/SPI headers/forward
        declaring XPC functions. This will also aid in the effort to make WebKit2 build
        for iOS with the public iOS SDK.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/XPCSPI.h: Added.

2014-10-01  Brent Fulgham  <bfulgham@apple.com>

        [Win] 32-bit JavaScriptCore should limit itself to the C loop
        https://bugs.webkit.org/show_bug.cgi?id=137304
        <rdar://problem/18375370>

        Reviewed by Michael Saboff.

        * wtf/Platform.h: Force the C loop when building for 32-bit Windows.

2014-09-30  Christophe Dumez  <cdumez@apple.com>

        Generalize is<>() / downcast<>() support to all types
        https://bugs.webkit.org/show_bug.cgi?id=137243

        Reviewed by Benjamin Poulain.

        Generalize is<>() / downcast<>() support to all types, not just Nodes.

        * wtf/Assertions.h:
        * wtf/TypeCasts.h: Added.
        (WTF::is):
        (WTF::downcast):

2014-09-30  Anders Carlsson  <andersca@apple.com>

        Get the STRING_STATS codepath compiling again, and add calls to ref/deref
        https://bugs.webkit.org/show_bug.cgi?id=137259

        Reviewed by Andreas Kling.

        * wtf/text/StringImpl.cpp:
        (WTF::StringStats::removeString):
        (WTF::StringStats::printStats):
        (WTF::StringImpl::~StringImpl):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::isSubString):
        (WTF::StringImpl::ref):
        (WTF::StringImpl::deref):
        (WTF::StringStats::addUpconvertedString): Deleted.

2014-09-30  Daniel Bates  <dabates@apple.com>

        REGRESSION (r172532): JSBase.h declares NSMapTable functions that are SPI
        https://bugs.webkit.org/show_bug.cgi?id=137170
        <rdar://problem/18477384>

        Reviewed by Geoffrey Garen.

        Add SPI wrapper header, NSMapTableSPI.h.

        Additionally, define convenience macro EXTERN_C that can be used to specify the C linkage
        convention for a declaration. For example, the declaration "EXTERN_C const int x;" will
        expand to:

        extern const int x;

        and

        extern "C" const int x;

        when used in a C and C++ file, respectively.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Compiler.h:
        * wtf/spi/cocoa/NSMapTableSPI.h: Added.

2014-09-29  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r174045.
        https://bugs.webkit.org/show_bug.cgi?id=137231

        Introduced a crash during page loading tests on Mac (Requested
        by rniwa on #webkit).

        Reverted changeset:

        "Replace OSObjectPtr with RetainPtr/adoptOS"
        https://bugs.webkit.org/show_bug.cgi?id=137158
        http://trac.webkit.org/changeset/174045

2014-09-26  Sam Weinig  <sam@webkit.org>

        Replace OSObjectPtr with RetainPtr/adoptOS
        https://bugs.webkit.org/show_bug.cgi?id=137158

        Reviewed by Dan Bernstein.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/OSObjectPtr.h: Removed.
        * wtf/RetainPtr.h:
        (WTF::adoptOS):
        Added. This adopt function is slightly different than both adoptCF and adoptNS,
        in that unlike adoptCF(), it can be passed an Objective-C type (since OS objects
        are sometimes Objective-C objects, but not always), and unlike adoptNS() it doesn't 
        require us to jump through hoops to appease GC (since OS objects are not Objective-C
        objects if GC is enabled).

2014-09-24  Filip Pizlo  <fpizlo@apple.com>

        FTL should sink object allocations
        https://bugs.webkit.org/show_bug.cgi?id=136330

        Reviewed by Oliver Hunt.
        
        Make it possible to reset a Bag.

        * wtf/Bag.h:
        (WTF::Bag::Bag):
        (WTF::Bag::~Bag):
        (WTF::Bag::clear):

2014-09-25  Roger Fong  <roger_fong@apple.com>

        [Windows] Unreviewed build fix. Ensure that python2.7 is used for Windows builds.

        * WTF.vcxproj/WTFGenerated.make:

2014-09-25  Csaba Osztrogonác  <ossy@webkit.org>

        Remove WinCE port from trunk
        https://bugs.webkit.org/show_bug.cgi?id=136951

        Reviewed by Alex Christensen.

        * config.h:
        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):
        * wtf/CurrentTime.cpp:
        (WTF::lowResUTCTime):
        * wtf/DataLog.cpp:
        * wtf/DateMath.cpp:
        (WTF::getLocalTime):
        (WTF::calculateDSTOffset):
        * wtf/FastMalloc.cpp:
        * wtf/FeatureDefines.h:
        * wtf/OSAllocator.h:
        (WTF::OSAllocator::decommitAndRelease):
        * wtf/Platform.h:
        * wtf/PlatformWin.cmake:
        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize):
        * wtf/RandomNumberSeed.h:
        (WTF::initializeRandomNumberGenerator):
        * wtf/StackBounds.cpp:
        (WTF::StackBounds::initialize):
        * wtf/StackBounds.h:
        (WTF::StackBounds::isGrowingDownward):
        * wtf/StdLibExtras.h:
        (wtf_bsearch): Deleted.
        * wtf/StringExtras.h:
        (strnicmp): Deleted.
        (stricmp): Deleted.
        (strdup): Deleted.
        * wtf/ThreadSpecific.h:
        * wtf/ThreadingWin.cpp:
        (WTF::createThreadInternal):
        * wtf/WindowsExtras.h:
        (WTF::getRegistryValue):
        (WTF::getWindowPointer):
        (WTF::setWindowPointer):
        * wtf/dtoa/utils.h:
        * wtf/text/WTFString.cpp:
        (WTF::String::format):

2014-09-24  Geoffrey Garen  <ggaren@apple.com>

        Do the bmalloc.
        https://bugs.webkit.org/show_bug.cgi?id=132629

        Reviewed by Gavin Barraclough.

        64-bit only for now, just to try it out.

        * wtf/FastMalloc.cpp:

2014-09-23  Geoffrey Garen  <ggaren@apple.com>

        Rolled out r173346.

            bmalloc should honor the FastMalloc statistics API
            https://bugs.webkit.org/show_bug.cgi?id=136592

        This didn't really work. Because we allow ranges with and without
        physical pages to merge, and we allow double-committing and
        double-decommitting, we can't rely on commit actions to track memory
        footprint.

        * wtf/FastMalloc.cpp:
        (WTF::fastMallocStatistics):

2014-09-23  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Should be able to attach a debugger to a JSContext before anything is executed
        https://bugs.webkit.org/show_bug.cgi?id=136893

        Reviewed by Timothy Hatcher.

        Currently automatic inspection only happens in processes that have a
        debugger attached. That condition may change in the future, but this
        function can stand on its own in WTF. It may be useful in the future
        to perhaps continue though ASSERTs if you have a debugger attached.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2014-09-22  Sam Weinig  <sam@webkit.org>

        Eliminate redundant PtrHash specializations
        https://bugs.webkit.org/show_bug.cgi?id=136990

        Reviewed by Darin Adler.

        Now that we have IsSmartPtr, we can eliminate all the specializations
        of PtrHash that we had (for RefPtr, OwnPtr, RetainPtr, and std::unique_ptr)
        and instead just have one that uses GetPtrHelper.

        No changes of behavior intended.

        * wtf/GetPtr.h:
        Remove unnecessary const_cast that Darin noticed.

        * wtf/HashFunctions.h:
        (WTF::PtrHash::hash): Deleted.
        (WTF::PtrHash::equal): Deleted.
        (WTF::PtrHash<RefPtr<P>>::hash): Deleted.
        (WTF::PtrHash<RefPtr<P>>::equal): Deleted.
        Specialize PtrHash based on whether the type is a smart pointer, and use GetPtrHelper
        to implement the smart pointer specialized variant.

        * wtf/HashMap.h:
        Remove include of GetPtr.h that is now included by HashFunctions.h

        * wtf/OwnPtr.h:
        (WTF::PtrHash<OwnPtr<P>>::hash): Deleted.
        (WTF::PtrHash<OwnPtr<P>>::equal): Deleted.
        Remove unnecessary specialization of PtrHash.

        * wtf/RetainPtr.h:
        (WTF::PtrHash<RetainPtr<P>>::hash): Deleted.
        (WTF::PtrHash<RetainPtr<P>>::equal): Deleted.
        Specialize IsSmartPointer for RetainPtr and remove the then unnecessary specialization of PtrHash.
        (This is already tested in the API test WTF/cf/RetainPtrHashing).

2014-09-20  Sam Weinig  <sam@webkit.org>

        Make possible HashSet<std::unique_ptr<>>
        https://bugs.webkit.org/show_bug.cgi?id=136166

        Reviewed by Darin Adler.

        * wtf/GetPtr.h:
        (WTF::getPtr):
        (WTF::GetPtrHelper<std::unique_ptr<T>>::getPtr):
        Make specializing GetPtrHelper a bit cleaner (you don't have to put 
        IsSmartPtr<T>::value everywhere any more) and add specializations for
        std::unique_ptr.

        * wtf/HashFunctions.h:
        (WTF::PtrHash<std::unique_ptr<P>>):
        Add specialization for PtrHash for std::unique_ptr and set it as the DefaultHash
        for it as well.

        * wtf/HashMap.h:    
        * wtf/HashSet.h:
        Add overloads of find(), contains(), remove(), take() (and get() for HashMap) for "smart pointers" that
        take the raw pointer type as the parameter. These use SFINAE to make themselves only available
        when the IsSmartPtr<KeyType>::value is true. 

        * wtf/HashTraits.h:
        Override constructDeletedValue() and isDeletedValue() in the std::unique_ptr specialization
        since the default implementation depends on the type having a constructor that takes a HashTableDeletedValue
        and function named isHashTableDeletedValue().

        * wtf/OwnPtr.h:
        (WTF::OwnPtr::OwnPtr):
        (WTF::OwnPtr::isHashTableDeletedValue):
        (WTF::OwnPtr::hashTableDeletedValue):
        Add HashTableDeletedValue constructor/functions to allow the constructDeletedValue() and isDeletedValue()
        hash traits to work.

        (WTF::PtrHash<OwnPtr<P>>::hash):
        (WTF::PtrHash<OwnPtr<P>>::equal):
        Add specialization for PtrHash for OwnPtr and set it as the DefaultHash
        for it as well.

        * wtf/Ref.h:
        Update for the less verbose GetPtrHelper specialization.

2014-09-19  Chris Dumez  <cdumez@apple.com>

        Allow DOM methods to return references instead of pointers
        https://bugs.webkit.org/show_bug.cgi?id=136931

        Add support for having WTF::getPtr() transform reference arguments
        into raw pointers so that DOM methods can now return references when
        appropriate and so that the generated bindings code can handle this
        via WTF::getPtr().

        This patch had to alter the way getPtr() was overloaded for smart
        pointer types so that we don't call &p on smart pointers but p.get().
        This was needed because the new WTF::getPtr(T&) was being called for
        RefPtr<T> arguments instead of the getPtr(const RefPtr<T>&) overload.
        This was addressed using traits and template specialization to
        distinguish WTF smart pointers from other types.

        Reviewed by Sam Weinig.

        * wtf/GetPtr.h:
        (WTF::getPtr):
        * wtf/OwnPtr.h:
        (WTF::getPtr): Deleted.
        * wtf/PassOwnPtr.h:
        (WTF::getPtr): Deleted.
        * wtf/PassRefPtr.h:
        (WTF::getPtr): Deleted.
        * wtf/Ref.h:
        * wtf/RefPtr.h:
        (WTF::getPtr): Deleted.
        * wtf/gobject/GRefPtr.h:
        (WTF::getPtr): Deleted.

2014-09-19  Daniel Bates  <dabates@apple.com>

        Always assume internal SDK when building configuration Production
        https://bugs.webkit.org/show_bug.cgi?id=136925
        <rdar://problem/18362399>

        Reviewed by Dan Bernstein.

        * Configurations/Base.xcconfig:

2014-09-19  Diego Pino Garcia  <dpino@igalia.com>

        Simple ES6 feature:String prototype additions
        https://bugs.webkit.org/show_bug.cgi?id=131704

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::find):
        (WTF::equalInner): Added.
        (WTF::StringImpl::startsWith): Add implementation that supports
        'startOffset' parameter.
        (WTF::StringImpl::endsWith): Add implementation that supports
        'endOffset' parameter.
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:
        (WTF::String::contains): Modify current implementation to allow
        setting a startOffset, 0 by default.
        (WTF::String::startsWith):
        (WTF::String::endsWith):

2014-09-18  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Dot not allow to create delete-on-destroy GMainLoopSources
        https://bugs.webkit.org/show_bug.cgi?id=136923

        Reviewed by Gustavo Noronha Silva.

        We have several asserts to ensure that delete-on-destroy sources
        are not misused, like not scheduling socket sources on a
        delete-on-destroy GMainLoopSource or not allowing to cancel them
        before they have been dispatched. It's better to ensure all those
        things at compile time, using static methods to schedule sources
        creating a delete-on-destroy GMainLoopSource that is not returned
        to the user.

        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::create): Private static method to create a
        delete-on-destroy GMainLoopSource.
        (WTF::GMainLoopSource::cancelWithoutLocking): Return early in case
        of delete-on-destroy source, since they can't be cancelled.
        (WTF::GMainLoopSource::schedule): Remove assertion to ensure
        socket sources are not scheduled on a delete-on-destroy GMainLoopSource.
        (WTF::GMainLoopSource::scheduleAndDeleteOnDestroy):
        (WTF::GMainLoopSource::scheduleAfterDelayAndDeleteOnDestroy):
        (WTF::GMainLoopSource::createAndDeleteOnDestroy): Deleted.
        * wtf/gobject/GMainLoopSource.h:
        * wtf/gtk/MainThreadGtk.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread): Use GMainLoopSource::scheduleAndDeleteOnDestroy()
        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::wakeUp): Ditto.

2014-09-18  Joseph Pecoraro  <pecoraro@apple.com>

        Unreviewed rollout r173731. Broke multiple builds.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2014-09-18  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Should be able to attach a debugger to a JSContext before anything is executed
        https://bugs.webkit.org/show_bug.cgi?id=136893

        Reviewed by Timothy Hatcher.

        Currently automatic inspection only happens in processes that have a
        debugger attached. That condition may change in the future, but this
        function can stand on its own in WTF. It may be useful in the future
        to perhaps continue though ASSERTs if you have a debugger attached.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2014-09-18  Zan Dobersek  <zdobersek@igalia.com>

        GMainLoopSource is exposed to race conditions
        https://bugs.webkit.org/show_bug.cgi?id=135800

        Reviewed by Carlos Garcia Campos.

        GMainLoopSource objects can be dispatching tasks on one thread
        while having a new task scheduled on a different thread. This
        can for instance occur in WebKitVideoSink, where the timeout
        callback can be called on main thread while at the same time
        it is being rescheduled on a different thread (created through
        GStreamer).

        The initial solution is to use GMutex to prevent parallel data
        access from different threads. In the future I plan to look at
        the possibility of creating thread-specific GMainLoopSource
        objects that wouldn't require the use of GMutex.

        GSource, GCancellable and std::function<> objects are now packed
        into an internal Context structure. Using the C++11 move semantics
        it's simple to, at the time of dispatch, move the current context
        out of the GMainLoopSource object in case the dispatch causes a
        rescheduling on that same object.

        Also added in the Context struct is a new GCancellable. The pointer
        of that object is shared with the GMainLoopSource before the Context
        is moved out for the callback dispatch. This makes it safe to cancel
        or even delete the GMainLoopSource during the dispatch and prevents
        use-after-delete on GMainLoopSource once the dispatch is done in
        the GMainLoopSource::*Callback() methods.

        All the schedule*() methods and the cancelWithoutLocking() method
        callers now lock the GMutex to ensure no one else is accessing the
        data at that moment. Similar goes for the dispatch methods, but those
        do the dispatch and possible destruction duties with the mutex unlocked.
        The dispatch can cause rescheduling on the same GMainLoopSource object,
        which must not be done with a locked mutex.

        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::GMainLoopSource):
        (WTF::GMainLoopSource::~GMainLoopSource):
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::cancelWithoutLocking):
        (WTF::GMainLoopSource::scheduleIdleSource):
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleTimeoutSource):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::GMainLoopSource::voidCallback):
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::socketCallback):
        (WTF::GMainLoopSource::socketSourceCallback):
        (WTF::GMainLoopSource::Context::destroySource):
        (WTF::GMainLoopSource::reset): Deleted.
        (WTF::GMainLoopSource::destroy): Deleted.
        * wtf/gobject/GMainLoopSource.h:

2014-09-17  Daniel Bates  <dabates@apple.com>

        Unreviewed, rolling out r173695.

        Broke building third-party Legacy WebKit apps; will
        investigate offline

        Reverted changeset:

        "[iOS] Make WebCore build with public iOS SDK"
        https://bugs.webkit.org/show_bug.cgi?id=136487
        http://trac.webkit.org/changeset/173695

2014-09-17  Benjamin Poulain  <bpoulain@apple.com>

        CSS value in whitespace-separated list attribute selector (~=) mishandles tab/newline/etc.
        https://bugs.webkit.org/show_bug.cgi?id=136807

        Reviewed by Antti Koivisto.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::find):

2014-09-17  Daniel Bates  <dabates@apple.com>

        [iOS] Make WebCore build with public iOS SDK
        https://bugs.webkit.org/show_bug.cgi?id=136487

        Reviewed by David Kilzer.

        Define convenience macro EXTERN_C that can be used to specify the C linkage convention
        for a declaration. For example, the declaration "EXTERN_C const int x;" will expand to:

        extern const int x;

        and

        extern "C" const int x;

        when used in a C and C++ file, respectively.

        * wtf/Compiler.h:

2014-09-16  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, disable native inlining because it causes build failures.

        * wtf/Platform.h:

2014-09-15  Jer Noble  <jer.noble@apple.com>

        [Mac] Support audioSourceProvider() in MediaPlayerPrivateAVFoundationObjC
        https://bugs.webkit.org/show_bug.cgi?id=135042

        Reviewed by Eric Carlson.

        * wtf/Platform.h: Add WTF_USE_MEDIATOOLBOX.

2014-09-15  peavo@outlook.com  <peavo@outlook.com>

        [WinCairo] Make it easier to enable/disable GStreamer.
        https://bugs.webkit.org/show_bug.cgi?id=135766

        Reviewed by Brent Fulgham.

        Make it possible to enable/disable GStreamer by editing the new user macro ENABLE_GSTREAMER_WINCAIRO.

        * WTF.vcxproj/WTFDebugWinCairo.props: Import GStreamer property file.
        * WTF.vcxproj/WTFReleaseWinCairo.props: Ditto.
        * wtf/Platform.h: Enable GStreamer if ENABLE(GSTREAMER_WINCAIRO) is true, otherwise use Media Foundation.

2014-09-10  Jon Honeycutt  <jhoneycutt@apple.com>

        Re-add the request autocomplete feature

        <https://bugs.webkit.org/show_bug.cgi?id=136730>

        This feature was rolled out in r148731 because it was only used by
        Chromium. As we consider supporting this feature, roll it back in, but
        leave it disabled.

        This rolls out r148731 (which removed the feature) with small changes
        needed to make the code build in ToT, to make the tests run, and to
        remove unused code.

        Reviewed by Andy Estes.

        * wtf/FeatureDefines.h:

2014-09-12  Tim Horton  <timothy_horton@apple.com>

        Swiping back from a Twitter image to Twitter flashes to the wrong position
        https://bugs.webkit.org/show_bug.cgi?id=136798
        <rdar://problem/18324338>

        Reviewed by Darin Adler and Sam Weinig.

        * wtf/RunLoop.h:
        (WTF::RunLoop::TimerBase::startRepeating):
        Add a std::chrono veresion of RunLoop::TimerBase::startRepeating.

2014-09-12  Geoffrey Garen  <ggaren@apple.com>

        Rolled out r173540.

        It broke the Membuster performance bot, and it's still slightly profligate
        with memory.

            Do the bmalloc.
            https://bugs.webkit.org/show_bug.cgi?id=132629

        * wtf/FastMalloc.cpp:

2014-09-11  Geoffrey Garen  <ggaren@apple.com>

        Do the bmalloc.
        https://bugs.webkit.org/show_bug.cgi?id=132629

        Reviewed by Michael Saboff.

        64-bit only for now, just to try it out.

        * wtf/FastMalloc.cpp:

2014-09-09  Benjamin Poulain  <bpoulain@apple.com>

        Disable the "unreachable-code" warning
        https://bugs.webkit.org/show_bug.cgi?id=136677

        Reviewed by Darin Adler.

        The warning causes various build errors depending on which Clang you are using.

        For example, with recent clangs, it breaks all the ARCHS dependent code like this:
            if (sizeof(uintptr_t) == 4)
                // Something for 32 bits.
            else
                // Somethign for 64 bits.

        * Configurations/Base.xcconfig:

2014-09-07  Filip Pizlo  <fpizlo@apple.com>

        DFG should have a reusable SSA builder
        https://bugs.webkit.org/show_bug.cgi?id=136331

        Reviewed by Oliver Hunt.
        
        Update the alloc() method to use variadic templates. This makes it more natural to use.

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::alloc):

2014-09-08  Eva Balazsfalvi  <evab.u-szeged@partner.samsung.com>

        Remove FILTERS flag
        https://bugs.webkit.org/show_bug.cgi?id=136571

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:

2014-09-08  Dan Bernstein  <mitz@apple.com>

        HAVE(VOUCHERS) is not available outside of WebKit2
        https://bugs.webkit.org/show_bug.cgi?id=136637

        Reviewed by Tim Horton.

        * wtf/Platform.h: Moved the definition of HAVE_VOUCHERS from WebKit2’s config.h here.

2014-09-08  Tim Horton  <timothy_horton@apple.com>

        Try to fix the build after r173383, part 2.

        * wtf/OSObjectPtr.h:

2014-09-08  Tim Horton  <timothy_horton@apple.com>

        Try to fix the build after r173383.

        * wtf/OSObjectPtr.h:

2014-09-07  Sam Weinig  <sam@webkit.org>

        Make OSObjectPtr a bit more like RefPtr
        https://bugs.webkit.org/show_bug.cgi?id=136613

        Reviewed by Darin Adler.

        Address some of Darin's feedback by:
        - Making the adopting constructor private and friending adoptOSObject().
        - Implementing the assignment operator using swap.
        - Adding a move assignment operator.

        * wtf/OSObjectPtr.h:
        (WTF::OSObjectPtr::operator=):
        (WTF::OSObjectPtr::swap):
        (WTF::OSObjectPtr::OSObjectPtr):

2014-09-08  Jessie Berlin  <jberlin@apple.com>

        More build fixes after r173374.

        * wtf/dtoa/strtod.cc:

2014-09-08  Jessie Berlin  <jberlin@apple.com>

        Build fix after r173374.

        * wtf/dtoa/strtod.cc:

2014-09-08  Jessie Berlin  <jberlin@apple.com>

        Speculative build fix after r173364.

        * wtf/dtoa/strtod.cc:

2014-09-07  Maciej Stachowiak  <mjs@apple.com>

        Introduce COMPILER_QUIRK(CONSIDERS_UNREACHABLE_CODE) and use it
        https://bugs.webkit.org/show_bug.cgi?id=136616

        Reviewed by Darin Adler.

        * wtf/Compiler.h: Define the quirk for all compilers but clang.

2014-09-06  Sam Weinig  <sam@webkit.org>

        XPCPtr should be converted into an all purpose smart pointer for os_objects
        https://bugs.webkit.org/show_bug.cgi?id=136602

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/OSObjectPtr.h: Copied from Source/WebKit2/Platform/IPC/mac/XPCPtr.h.
        (WTF::retainOSObject):
        (WTF::releaseOSObject):
        (WTF::OSObjectPtr::OSObjectPtr):
        (WTF::OSObjectPtr::~OSObjectPtr):
        (WTF::OSObjectPtr::operator=):
        (WTF::adoptOSObject):
        (IPC::XPCPtr::XPCPtr): Deleted.
        (IPC::XPCPtr::~XPCPtr): Deleted.
        (IPC::XPCPtr::operator=): Deleted.
        (IPC::adoptXPC): Deleted.
        Rename/move XPCPtr to OSObjectPtr and make it work with any os_object.

2014-09-06  Darin Adler  <darin@apple.com>

        Make updates suggested by new version of Xcode
        https://bugs.webkit.org/show_bug.cgi?id=136603

        Reviewed by Mark Rowe.

        * Configurations/Base.xcconfig: Added CLANG_WARN_UNREACHABLE_CODE,
        COMBINE_HIDPI_IMAGES, and ENABLE_STRICT_OBJC_MSGSEND as suggested by
        Xcode upgrade check.

        * WTF.xcodeproj/project.pbxproj: Updated LastUpgradeCheck.

2014-09-05  Geoffrey Garen  <ggaren@apple.com>

        bmalloc should honor the FastMalloc statistics API
        https://bugs.webkit.org/show_bug.cgi?id=136592

        Reviewed by Gavin Barraclough.

        * wtf/FastMalloc.cpp:
        (WTF::fastMallocStatistics):

2014-09-05  Geoffrey Garen  <ggaren@apple.com>

        bmalloc should honor the FastMalloc scavenging API
        https://bugs.webkit.org/show_bug.cgi?id=136588

        Reviewed by Andreas Kling.

        * wtf/FastMalloc.cpp:
        (WTF::releaseFastMallocFreeMemory):

2014-09-05  Geoffrey Garen  <ggaren@apple.com>

        Rolled out <http://trac.webkit.org/changeset/173313>.

        It seems to have broken the PLT bot.

                Do the bmalloc.
                https://bugs.webkit.org/show_bug.cgi?id=132629

                * wtf/FastMalloc.cpp:

2014-06-06  Jer Noble  <jer.noble@apple.com>

        Refactoring: make MediaTime the primary time type for audiovisual times.
        https://bugs.webkit.org/show_bug.cgi?id=133579

        Reviewed by Eric Carlson.

        Add a unary minus operator, and add unimplemented private casting operators, to make
        unintentional double->MediaTime and MediaTime->double casts hard errors.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::operator-):
        * wtf/MediaTime.h:

2014-09-04  Geoffrey Garen  <ggaren@apple.com>

        Do the bmalloc.
        https://bugs.webkit.org/show_bug.cgi?id=132629

        Reviewed by Michael Saboff.

        64-bit only for now, just to try it out.

        * wtf/FastMalloc.cpp:

2014-09-05  Dániel Bátyai  <dbatyai.u-szeged@partner.samsung.com>

        Enable GenGC on ARM Traditional
        https://bugs.webkit.org/show_bug.cgi?id=136567

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2014-09-04  Filip Pizlo  <fpizlo@apple.com>

        Beef up the DFG's CFG analyses to include iterated dominance frontiers and more user-friendly BlockSets
        https://bugs.webkit.org/show_bug.cgi?id=136520

        Fix bug found in Geoff's review but not landed in previous commit.

        * wtf/BitVector.cpp:
        (WTF::BitVector::equalsSlowCaseFast): return true.

2014-09-03  Filip Pizlo  <fpizlo@apple.com>

        Beef up the DFG's CFG analyses to include iterated dominance frontiers and more user-friendly BlockSets
        https://bugs.webkit.org/show_bug.cgi?id=136520

        Reviewed by Geoffrey Garen.
        
        Give BitVector a way to quickly find the next set (or unset) bit. Make BitVector equality
        faster. Fix a minor closure goof in Spectrum.

        * wtf/BitVector.cpp:
        (WTF::BitVector::equalsSlowCase):
        (WTF::BitVector::equalsSlowCaseFast):
        (WTF::BitVector::equalsSlowCaseSimple):
        * wtf/BitVector.h:
        (WTF::BitVector::findBit):
        (WTF::BitVector::findBitFast):
        (WTF::BitVector::findBitSimple):
        (WTF::BitVector::findBitInWord):
        * wtf/Spectrum.h:
        (WTF::Spectrum::removeIf):

2014-09-04  Anders Carlsson  <andersca@apple.com>

        Make hash table classes final
        https://bugs.webkit.org/show_bug.cgi?id=136540

        Reviewed by Antti Koivisto.

        We don't want anybody inheriting from these classes, so make them final.

        * wtf/HashCountedSet.h:
        * wtf/HashMap.h:
        * wtf/HashSet.h:

2014-09-04  Eva Balazsfalvi  <evab.u-szeged@partner.samsung.com>

        Remove CSS_FILTERS flag
        https://bugs.webkit.org/show_bug.cgi?id=136529

        Reviewed by Dirk Schulze.

        * wtf/FeatureDefines.h:

2014-09-04  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r173201.
        https://bugs.webkit.org/show_bug.cgi?id=136538

        Improves the situation but also introduces additional crashes.
        (Requested by zdobersek on #webkit).

        Reverted changeset:

        "GMainLoopSource is exposed to race conditions"
        https://bugs.webkit.org/show_bug.cgi?id=135800
        http://trac.webkit.org/changeset/173201

2014-09-04  Pratik Solanki  <psolanki@apple.com>

        Remove iOS specific disk image cache
        https://bugs.webkit.org/show_bug.cgi?id=136517

        Reviewed by Antti Koivisto.

        Disk image cache code unnecessarily complicates SharedBuffer implementation. We can remove
        this now since we don't enable it in WebKit2 on iOS.

        * wtf/FeatureDefines.h:

2014-09-03  Dan Bernstein  <mitz@apple.com>

        Get rid of HIGH_DPI_CANVAS leftovers
        https://bugs.webkit.org/show_bug.cgi?id=136491

        Reviewed by Benjamin Poulain.

        * wtf/FeatureDefines.h: Removed definition of ENABLE_HIGH_DPI_CANVAS.

2014-09-03  Zan Dobersek  <zdobersek@igalia.com>

        GMainLoopSource is exposed to race conditions
        https://bugs.webkit.org/show_bug.cgi?id=135800

        Reviewed by Carlos Garcia Campos.

        GMainLoopSource objects can be dispatching tasks on one thread
        while having a new task scheduled on a different thread. This
        can for instance occur in WebKitVideoSink, where the timeout
        callback can be called on main thread while at the same time
        it is being rescheduled on a different thread (created through
        GStreamer).

        The initial solution is to use GMutex to prevent parallel data
        access from different threads. In the future I plan to add better
        assertions, some meaningful comments and look at the possibility
        of creating thread-specific GMainLoopSource objects that wouldn't
        require the use of GMutex.

        GSource, GCancellable and std::function<> objects are now packed
        into an internal Context structure. Using the C++11 move semantics
        it's simple to, at the time of dispatch, move the current context
        out of the GMainLoopSource object in case the dispatch causes a
        rescheduling on that same object.

        All the schedule*() methods and the cancelInternal() method callers
        now lock the GMutex to ensure no one else is accessing the data at
        that moment. Similar goes for the dispatch methods, but those do
        the dispatch and possible destruction duties with the mutex unlocked.
        The dispatch can cause rescheduling on the same GMainLoopSource object,
        which must not be done with a locked mutex.

        * wtf/gobject/GMainLoopSource.cpp:
        (WTF::GMainLoopSource::GMainLoopSource):
        (WTF::GMainLoopSource::~GMainLoopSource):
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::cancelInternal):
        (WTF::GMainLoopSource::scheduleIdleSource):
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleTimeoutSource):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::GMainLoopSource::voidCallback):
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::socketCallback):
        (WTF::GMainLoopSource::destroy):
        (WTF::GMainLoopSource::reset): Deleted.
        * wtf/gobject/GMainLoopSource.h:

2014-09-02  Daniel Bates  <dabates@apple.com>

        [iOS] Support using Foundation networking code
        https://bugs.webkit.org/show_bug.cgi?id=136467

        Reviewed by Pratik Solanki.

        Disable USE(CFNETWORK) and use the Foundation networking code by default when building
        iOS WebKit without the Apple Internal SDK.

        * wtf/Platform.h:

2014-08-26  Maciej Stachowiak  <mjs@apple.com>

        Use RetainPtr::autorelease in some places where it seems appropriate
        https://bugs.webkit.org/show_bug.cgi?id=136280

        Reviewed by Darin Adler.

        * wtf/text/mac/StringImplMac.mm:
        (WTF::StringImpl::operator NSString *): Use autorelease() instead of
        CFBridgingRelease(leakRef())

2014-08-29  Joseph Pecoraro  <pecoraro@apple.com>

        JavaScriptCore: Use ASCIILiteral where possible
        https://bugs.webkit.org/show_bug.cgi?id=136179

        Reviewed by Michael Saboff.

        * wtf/text/WTFString.cpp:
        (asciiDebug):

2014-08-27  Filip Pizlo  <fpizlo@apple.com>

        DFG should compute immediate dominators using the O(n log n) form of Lengauer and Tarjan's "A Fast Algorithm for Finding Dominators in a Flowgraph"
        https://bugs.webkit.org/show_bug.cgi?id=93361

        Reviewed by Mark Hahnenberg.
        
        Make BitVector operations return the previous value of the bit you're changing. This is
        useful for the kinds of set operations that are commonplace in compiler graph searches.

        * wtf/BitVector.h:
        (WTF::BitVector::quickSet):
        (WTF::BitVector::quickClear):
        (WTF::BitVector::set):
        (WTF::BitVector::ensureSizeAndSet):
        (WTF::BitVector::clear):

2014-08-27  Filip Pizlo  <fpizlo@apple.com>

        FTL should be able to do polymorphic call inlining
        https://bugs.webkit.org/show_bug.cgi?id=135145

        Reviewed by Geoffrey Garen.
        
        Add some power that I need for call edge profiling.

        * wtf/OwnPtr.h:
        (WTF::OwnPtr<T>::createTransactionally):
        * wtf/Spectrum.h:
        (WTF::Spectrum::add):
        (WTF::Spectrum::addAll):
        (WTF::Spectrum::get):
        (WTF::Spectrum::size):
        (WTF::Spectrum::KeyAndCount::KeyAndCount):
        (WTF::Spectrum::clear):
        (WTF::Spectrum::removeIf):

2014-08-27  Nico Weber  <thakis@chromium.org>

        Delete a MSVS2010 workaround.
        https://bugs.webkit.org/show_bug.cgi?id=136321

        Reviewed by Benjamin Poulain.

        Ports https://codereview.chromium.org/512923004/ by the talented
        Nico Weber from Blink. No intended behavior change.

        * wtf/Vector.h:
        (WTF::=):

2014-08-27  Mark Rowe  <mrowe@apple.com>

        JavaScriptCore is missing debug info for WTF because libWTF.a is stripped.
        <https://webkit.org/b/136320> / <rdar://problem/18148776>

        Reviewed by Dan Bernstein.

        * Configurations/WTF.xcconfig: Set STRIP_INSTALLED_PRODUCT = NO for the target
        that produces libWTF.a so that the debug symbols will be linked into JavaScriptCore
        and end up in its dSYM file.

2014-08-26  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r172940.
        https://bugs.webkit.org/show_bug.cgi?id=136256

        Caused assertions on fast/storage/serialized-script-
        value.html, and possibly flakiness on more tests (Requested by
        ap on #webkit).

        Reverted changeset:

        "FTL should be able to do polymorphic call inlining"
        https://bugs.webkit.org/show_bug.cgi?id=135145
        http://trac.webkit.org/changeset/172940

2014-08-23  Filip Pizlo  <fpizlo@apple.com>

        FTL should be able to do polymorphic call inlining
        https://bugs.webkit.org/show_bug.cgi?id=135145

        Reviewed by Geoffrey Garen.
        
        Add some power that I need for call edge profiling.

        * wtf/OwnPtr.h:
        (WTF::OwnPtr<T>::createTransactionally):
        * wtf/Spectrum.h:
        (WTF::Spectrum::add):
        (WTF::Spectrum::addAll):
        (WTF::Spectrum::get):
        (WTF::Spectrum::size):
        (WTF::Spectrum::KeyAndCount::KeyAndCount):
        (WTF::Spectrum::clear):
        (WTF::Spectrum::removeIf):

2014-08-25  Tomas Popela  <tpopela@redhat.com>

        Add support for little-endian PowerPC64
        https://bugs.webkit.org/show_bug.cgi?id=135647

        Reviewed by Oliver Hunt.

        * wtf/Platform.h:
        * wtf/dtoa/utils.h:

2014-08-24  Zan Dobersek  <zdobersek@igalia.com>

        GenericHashTraits::peek() is producing copies of passed-in temporary values
        https://bugs.webkit.org/show_bug.cgi?id=131461

        Reviewed by Darin Adler.

        * wtf/HashTraits.h:
        (WTF::GenericHashTraits::peek): Make this method a template that passes through
        the passed-in value without copying, achieved by using universal references and
        std::forward<>().

2014-08-22  Daniel Bates  <dabates@apple.com>

        [iOS] Disable ENABLE_IOS_{GESTURE, TOUCH}_EVENTS, and temporarily disable ENABLE_TOUCH_EVENTS
        and ENABLE_XSLT when building with the iOS public SDK
        https://bugs.webkit.org/show_bug.cgi?id=135945

        Reviewed by Andy Estes.

        * wtf/FeatureDefines.h:

2014-08-22  Akos Kiss  <akiss@inf.u-szeged.hu>

        Enable fixed executable allocator for any ARM64 target.
        https://bugs.webkit.org/show_bug.cgi?id=136162

        Reviewed by Michael Saboff.

        The ARM64 macro assembler relies on near calls being implemented by BL
        instructions, which have only 128MB offset range from PC. The
        on-demand executable allocator cannot ensure that any two locations in
        memory allocated for the JIT-compiled code are within this range. 
        However, the fixed executable allocator has a fixed 16MB memory pool for
        ARM64.

        * wtf/Platform.h:
        Define ENABLE_EXECUTABLE_ALLOCATOR_FIXED if CPU(ARM64), and update
        attached comment.

2014-08-22  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r172844.
        https://bugs.webkit.org/show_bug.cgi?id=136164

        re-applying WEBCORE_EXPORTS patch (Requested by
        alexchristensen on #webkit).

        Reverted changeset:

        "Revert r172831, it broke the Windows build."
        http://trac.webkit.org/changeset/172844

2014-08-22  Jon Lee  <jonlee@apple.com>

        Fix iOS build due to r172832 and move RUBBER_BANDING out of FeatureDefines.h
        https://bugs.webkit.org/show_bug.cgi?id=136157

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h: Remove ENABLE(RUBBER_BANDING) logic for Mac platform.

2014-08-21  Tim Horton  <timothy_horton@apple.com>

        Revert r172831, it broke the Windows build.

        * wtf/ExportMacros.h:

2014-08-21  Zalan Bujtas  <zalan@apple.com>

        Enable SATURATED_LAYOUT_ARITHMETIC.
        https://bugs.webkit.org/show_bug.cgi?id=136106

        Reviewed by Simon Fraser.

        SATURATED_LAYOUT_ARITHMETIC protects LayoutUnit against arithmetic overflow.
        (No measurable performance regression on Mac.)

        * wtf/FeatureDefines.h:

2014-08-21  Alex Christensen  <achristensen@webkit.org>

        More WEBCORE_EXPORT macros.
        https://bugs.webkit.org/show_bug.cgi?id=136129

        Reviewed by Tim Horton.

        * wtf/ExportMacros.h:
        Removed WTF_TESTING which isn't used.

2014-08-20  Akos Kiss  <akiss@inf.u-szeged.hu>

        Enable ARM64 disassembler on EFL
        https://bugs.webkit.org/show_bug.cgi?id=136089

        Reviewed by Filip Pizlo.

        * wtf/Platform.h:
        Enable WTF_USE_ARM64_DISASSEMBLER for EFL as well.

2014-08-19  Pratik Solanki  <psolanki@apple.com>

        Remove PurgeableBuffer since it is not very useful any more
        https://bugs.webkit.org/show_bug.cgi?id=135939

        Reviewed by Andreas Kling.

        * wtf/Platform.h: Remove ENABLE_PURGEABLE_MEMORY define.
        * wtf/VMTags.h: Remove VM tags used by WebCore for cached resource purgeable memory.

2014-08-19  Magnus Granberg  <zorry@gentoo.org>

        TEXTREL in libjavascriptcoregtk-1.0.so.0.11.0 on x86 (or i586)
        https://bugs.webkit.org/show_bug.cgi?id=70610

        Reviewed by Darin Adler.

        Add PLT if we're building with PIC.

        * wtf/InlineASM.h:

2014-08-19  Zalan Bujtas  <zalan@apple.com>

        Remove ENABLE(SUBPIXEL_LAYOUT).
        https://bugs.webkit.org/show_bug.cgi?id=136077

        Reviewed by Simon Fraser.

        Remove compile time flag SUBPIXEL_LAYOUT. All ports have it enabled for a while now.

        * wtf/FeatureDefines.h:

2014-08-18  Maciej Stachowiak  <mjs@apple.com>

        Use NSURLFileTypeMappings directly instead of depending on WebKitSystemInterface wrappers for it
        https://bugs.webkit.org/show_bug.cgi?id=136035

        Reviewed by Dan Bernstein.

        * wtf/Platform.h: Define USE(APPLE_INTERNAL_SDK) by default on platforms that have it.

2014-08-18  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r172736.
        https://bugs.webkit.org/show_bug.cgi?id=136060

        Caused 14% PLT regressions (Requested by rniwa on #webkit).

        Reverted changeset:

        "Remove PurgeableBuffer since it is not very useful any more"
        https://bugs.webkit.org/show_bug.cgi?id=135939
        http://trac.webkit.org/changeset/172736

2014-08-18  Pratik Solanki  <psolanki@apple.com>

        Remove PurgeableBuffer since it is not very useful any more
        https://bugs.webkit.org/show_bug.cgi?id=135939

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h: Remove ENABLE_PURGEABLE_MEMORY define.
        * wtf/VMTags.h: Remove VM tags used by WebCore for cached resource purgeable memory.

2014-08-14  Benjamin Poulain  <benjamin@webkit.org>

        CSS JIT: compile the :empty pseudo class
        https://bugs.webkit.org/show_bug.cgi?id=135958

        Reviewed by Andreas Kling.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::lengthMemoryOffset):

2014-08-12  Myles C. Maxfield  <mmaxfield@apple.com>

        Elements whose contents start with an astral Unicode symbol disappear when CSS `::first-letter` is applied to them
        https://bugs.webkit.org/show_bug.cgi?id=135756

        Reviewed by Darin Adler.

        Add a method to StringView which passes through contains() to find().

        * wtf/text/StringView.h:
        (WTF::StringView::contains):

2014-08-12  Pratik Solanki  <psolanki@apple.com>

        Enable didReceiveDataArray callback on Mac
        https://bugs.webkit.org/show_bug.cgi?id=135554
        <rdar://problem/9170731>

        Reviewed by Andreas Kling.

        Enable WTF_USE_NETWORK_CFDATA_ARRAY_CALLBACK for all Cocoa platforms so that we use the same
        code path for Mac and iOS.

        * wtf/Platform.h:

2014-08-12  Alex Christensen  <achristensen@webkit.org>

        Generate header detection headers for CMake on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=135807

        Reviewed by Brent Fulgham.

        * wtf/CMakeLists.txt:
        * wtf/PlatformWin.cmake:
        Generate and include a stub WTFHeaderDetection.h.

2014-08-11  Andy Estes  <aestes@apple.com>

        [iOS] Get rid of iOS.xcconfig
        https://bugs.webkit.org/show_bug.cgi?id=135809

        Reviewed by Joseph Pecoraro.

        All iOS.xcconfig did was include AspenFamily.xcconfig, so there's no need for the indirection.

        * Configurations/Base.xcconfig:
        * Configurations/iOS.xcconfig: Removed.
        * WTF.xcodeproj/project.pbxproj:

2014-08-12  Zan Dobersek  <zdobersek@igalia.com>

        Clean up GMutexLocker
        https://bugs.webkit.org/show_bug.cgi?id=135833

        Reviewed by Carlos Garcia Campos.

        Place the GMutexLocker into the WTF namespace. There's no need for this
        class to use FastMalloc since it's always allocated on the stack. The
        constructor and class now operate on a GMutex reference. There's little
        need for an additional inline specifier for methods defined in the header.
        The mutex() method is removed as it was not used. m_val is renamed to a
        more descriptive m_locked and is made a boolean.

        * wtf/gobject/GMutexLocker.h:
        (WTF::GMutexLocker::GMutexLocker):
        (WTF::GMutexLocker::~GMutexLocker):
        (WTF::GMutexLocker::lock):
        (WTF::GMutexLocker::unlock):
        (WebCore::GMutexLocker::GMutexLocker): Deleted.
        (WebCore::GMutexLocker::~GMutexLocker): Deleted.
        (WebCore::GMutexLocker::lock): Deleted.
        (WebCore::GMutexLocker::unlock): Deleted.
        (WebCore::GMutexLocker::mutex): Deleted.

2014-08-12  Zan Dobersek  <zdobersek@igalia.com>

        Make GRefPtr move-able
        https://bugs.webkit.org/show_bug.cgi?id=135801

        Reviewed by Carlos Garcia Campos.

        Add move constructor and move assignment operator for GRefPtr.

        * wtf/gobject/GRefPtr.h:
        (WTF::GRefPtr::GRefPtr):
        (WTF::=):

2014-08-10  Benjamin Poulain  <benjamin@webkit.org>

        Update HashTable's operator= after r172167 per review comments

        * wtf/HashTable.h:
        Update the type as suggested by Darin.

2014-08-07  Benjamin Poulain  <bpoulain@apple.com>

        Get rid of SCRIPTED_SPEECH
        https://bugs.webkit.org/show_bug.cgi?id=135729

        Reviewed by Brent Fulgham.

        * wtf/FeatureDefines.h:

2014-08-07  Benjamin Poulain  <bpoulain@apple.com>

        Get rid of INPUT_SPEECH
        https://bugs.webkit.org/show_bug.cgi?id=135672

        Reviewed by Andreas Kling.

        * wtf/FeatureDefines.h:

2014-08-06  Dean Jackson  <dino@apple.com>

        ENABLE_CSS_TRANSFORMS_ANIMATIONS_UNPREFIXED is not used anywhere. Remove it.
        https://bugs.webkit.org/show_bug.cgi?id=135675

        Reviewed by Sam Weinig.

        * wtf/FeatureDefines.h:

2014-08-06  Benjamin Poulain  <benjamin@webkit.org>

        HashTable based classes leak a lot
        https://bugs.webkit.org/show_bug.cgi?id=135638

        Reviewed by Darin Adler.

        * wtf/HashTable.h:
        The operator= taking a rvalue reference was never freeing the memory allocated
        for the table of the left hand side object.

        This patch fixes the leaks by doing an alloc+swap with a new object.
        The object temp gets the reference to m_table, and destroys it in the regular destructor
        when going out of scope.

        Kudos to Pratik Solanki for finding the leaks.

2014-08-06  Dániel Bátyai  <dbatyai.u-szeged@partner.samsung.com>

        [JSC] Build fix for FTL on EFL after ftlopt merge
        https://bugs.webkit.org/show_bug.cgi?id=135565

        Reviewed by Mark Lam.

        Added ENABLE(FTL_NATIVE_CALL_INLINING).

        * wtf/Platform.h:

2014-08-04  Alex Christensen  <achristensen@webkit.org>

        Progress towards CMake on Mac.
        https://bugs.webkit.org/show_bug.cgi?id=135528

        Reviewed by Gyuyoung Kim.

        * wtf/CMakeLists.txt:
        Include text directory.
        * wtf/PlatformMac.cmake: Added.

2014-07-31  Alex Christensen  <achristensen@webkit.org>

        Progress towards cmake on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=135484

        Reviewed by Martin Robinson.

        * wtf/CMakeLists.txt:
        Added WTF_LIBRARY_TYPE because Windows needs WTF to be a shared library.

2014-07-30  Andreas Kling  <akling@apple.com>

        PropertyName's internal string is always atomic.
        <https://webkit.org/b/135451>

        Remove AtomicString::findStringWithHash() since nobody uses it anymore.

        Reviewed by Benjamin Poulain.

        * wtf/text/AtomicString.cpp:
        (WTF::findString): Deleted.
        (WTF::AtomicString::findStringWithHash): Deleted.
        * wtf/text/AtomicString.h:

2014-07-30  Andy Estes  <aestes@apple.com>

        USE(CONTENT_FILTERING) should be ENABLE(CONTENT_FILTERING)
        https://bugs.webkit.org/show_bug.cgi?id=135439

        Reviewed by Tim Horton.

        We now support two different platform content filters, and will soon support a mock content filter (as part of
        webkit.org/b/128858). This makes content filtering a feature of WebKit, not just an adoption of a third-party
        library. ENABLE() is the correct macro to use for such a feature.

        * wtf/Platform.h:

2014-07-29  Brent Fulgham  <bfulgham@apple.com>

        [Win] Modify version numbering scheme to support 5-tuple versions
        https://bugs.webkit.org/show_bug.cgi?id=135400
        <rdar://problem/17849033>

        Reviewed by David Kilzer.

        * WTF.vcxproj/WTFPostBuild.cmd: Use new version-stamp.pl script
        to version WTF.dll.
        * WTF.vcxproj/WTFPreBuild.cmd: Make sure we have created the
        appropriate version resource during builds.

2014-07-29  Daniel Bates  <dabates@apple.com>

        Use WTF::move() instead of std::move() to help ensure move semantics
        https://bugs.webkit.org/show_bug.cgi?id=135351

        Reviewed by Alexey Proskuryakov.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):

2014-07-28  Brian J. Burg  <burg@cs.washington.edu>

        Should not export symbols for base64Encode inline adapter methods
        https://bugs.webkit.org/show_bug.cgi?id=135355

        Unreviewed build fix.

        Fixes the build break introduced by r171682, where a base64Encode
        inline adapter method was used in another header, thus creating
        multiple definitions of it (and problems with with weak symbols).

        * wtf/text/Base64.h: Remove WTF_EXPORT_PRIVATE for inlined methods.

2014-07-27  Filip Pizlo  <fpizlo@apple.com>

        Merge r170090, r170092, r170129, r170141, r170161, r170215, r170275, r170375, r170376, r170382, r170383, r170399, r170436, r170489, r170490, r170556 from ftlopt.

        * wtf/text/WTFString.h:

2014-07-26  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, roll out r171641-r171644. It broke some tests; will investigate and
        reland later.

        * wtf/text/WTFString.h:

2014-07-25  Filip Pizlo  <fpizlo@apple.com>

        Attempt to fix Windows.

        * wtf/text/WTFString.h:

2014-07-25  Gavin Barraclough  <baraclough@apple.com>

        Yosemite version number is 101000
        https://bugs.webkit.org/show_bug.cgi?id=135301

        Reviewed by Sam Weinig.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2014-07-23  Brent Fulgham  <bfulgham@apple.com>

        [Win] Use NO_RETURN_DUE_TO_CRASH on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=13519

        Reviewed by Mark Lam.

        * wtf/Assertions.h: Add MSVC to list of compilers supporting this macro.
        * wtf/FastMalloc.cpp: Correct function declaration for NO_RETURN_DUE_TO_CRASH.

2014-07-22  Filip Pizlo  <fpizlo@apple.com>

        Merge r169148, r169185, r169188, r169578, r169582, r169584, r169588, r169753 from ftlopt.

    2014-06-04  Filip Pizlo  <fpizlo@apple.com>
    
            [ftlopt] AI should be able track structure sets larger than 1
            https://bugs.webkit.org/show_bug.cgi?id=128073
    
            Reviewed by Oliver Hunt.
    
            * wtf/Bag.h:
            (WTF::Bag::Node::Node):
            (WTF::Bag::add):
    
2014-07-22  Filip Pizlo  <fpizlo@apple.com>

        Merge r168635, r168780, r169005, r169014, and r169143 from ftlopt.

    2014-05-20  Filip Pizlo  <fpizlo@apple.com>
    
            [ftlopt] DFG bytecode parser should turn GetById with nothing but a Getter stub as stuff+handleCall, and handleCall should be allowed to inline if it wants to
            https://bugs.webkit.org/show_bug.cgi?id=133105
    
            Reviewed by Michael Saboff.
    
            * wtf/Bag.h:
            (WTF::Bag::iterator::operator!=):
    
2014-07-19  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Add the move constructor, move assignment operator for HashTable
        https://bugs.webkit.org/show_bug.cgi?id=130772

        Reviewed by Darin Adler.

        HashTable has both copy constructor and copy assignment operator, meaning that the move constructor
        and move assignment operator are implicitly deleted. This patch defines both to avoid unnecessary
        copies when moves can be performed.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):

2014-07-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r171107.
        https://bugs.webkit.org/show_bug.cgi?id=134959

        This was not the problem! (Requested by kling on #webkit).

        Reverted changeset:

        "Revert: Run the FastMalloc scavenger thread on iOS as well."
        https://bugs.webkit.org/show_bug.cgi?id=134927
        http://trac.webkit.org/changeset/171107

2014-07-15  Andreas Kling  <akling@apple.com>

        Revert: Run the FastMalloc scavenger thread on iOS as well.
        <https://webkit.org/b/134927>
        <rdar://problem/17485079>

        This appears to be the cause of some elusive crashes, and since I don't
        have a way to reproduce them, let's just go back to not running the
        scavenger thread on iOS.

        Reviewed by Antti Koivisto.

        * wtf/FastMalloc.cpp:

2014-07-13  Filip Pizlo  <fpizlo@apple.com>

        HashMap should have removeIf()
        https://bugs.webkit.org/show_bug.cgi?id=134870

        Reviewed by Sam Weinig.
        
        Expose a new HashMap method, called removeIf(), which allows you to do an efficient
        pass over the map and remove a bunch of things at once. This is used by DFG GCSE as
        part of https://bugs.webkit.org/show_bug.cgi?id=134677.

        * wtf/HashMap.h:
        (WTF::X>::removeIf):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::removeIf):

2014-07-11  peavo@outlook.com  <peavo@outlook.com>

        [Win] Enable DFG JIT.
        https://bugs.webkit.org/show_bug.cgi?id=123615

        Reviewed by Mark Lam.

        * wtf/Platform.h:

2014-07-11  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r170995.
        https://bugs.webkit.org/show_bug.cgi?id=134831

        Causing odd crashes in debug builds (Requested by zdobersek on
        #webkit).

        Reverted changeset:

        "[WTF] Add the move constructor, move assignment operator for
        HashTable"
        https://bugs.webkit.org/show_bug.cgi?id=130772
        http://trac.webkit.org/changeset/170995

2014-07-09  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Add the move constructor, move assignment operator for HashTable
        https://bugs.webkit.org/show_bug.cgi?id=130772

        Reviewed by Darin Adler.

        HashTable has both copy constructor and copy assignment operator, meaning that the move constructor
        and move assignment operator are implicitly deleted. This patch defines both to avoid unnecessary
        copies when moves can be performed.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):

2014-07-10  Alex Christensen  <achristensen@webkit.org>

        Enable same features on all Windows ports.
        https://bugs.webkit.org/show_bug.cgi?id=134715

        Reviewed by Brent Fulgham.

        * wtf/Platform.h:
        Use REQUEST_ANIMATION_FRAME_TIMER on WinCairo.

2014-07-09  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed build fix after r170930.

        * WTF.vcxproj/copy-files.cmd: Include cf files in
        post-build copy operation.

2014-07-09  Brent Fulgham  <bfulgham@apple.com>

        [Win] Remove uses of 'bash' in build system
        https://bugs.webkit.org/show_bug.cgi?id=134782
        <rdar://problem/17615533>

        Reviewed by Dean Jackson.

        Remove uses of 'bash' by replacing Windows-specific bash scripts
        with Perl equivalents.

        * WTF.vcxproj/WTFGenerated.make:
        * WTF.vcxproj/WTFGenerated.vcxproj:
        * WTF.vcxproj/WTFGenerated.vcxproj.filters:
        * WTF.vcxproj/WTFPreBuild.cmd:
        * WTF.vcxproj/build-generated-files.pl: Copied from Source/WTF/WTF.vcxproj/build-generated-files.sh.
        * WTF.vcxproj/build-generated-files.sh: Removed.

2014-07-09  Brent Fulgham  <bfulgham@apple.com>

        [Win] Remove use of 'grep' in build steps
        https://bugs.webkit.org/show_bug.cgi?id=134770
        <rdar://problem/17608783>

        Reviewed by Tim Horton.

        Replace uses of the grep command in Windows builds with the equivalent
        Perl program.

        * WTF.vcxproj/WTFPreBuild.cmd:

2014-07-07  Zan Dobersek  <zdobersek@igalia.com>

        Enable ARMv7 disassembler for the GTK port
        https://bugs.webkit.org/show_bug.cgi?id=134676

        Reviewed by Benjamin Poulain.

        * wtf/Platform.h: Enable the ARMv7 disassembler for the GTK port when
        targeting the ARMv7 architecture.

2014-07-06  Yoav Weiss  <yoav@yoav.ws>

        Turn on img@sizes compile flag
        https://bugs.webkit.org/show_bug.cgi?id=134634

        Reviewed by Benjamin Poulain.

        * wtf/FeatureDefines.h: Added compile flag definition.

2014-07-03  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        Unreivewed, fix build break on EFL and GTK since r170767.

        * wtf/CMakeLists.txt: Exclude Decoder.h and Encoder.h because those files were removed.

2014-07-03  Daniel Bates  <dabates@apple.com>

        Add WTF::move()
        https://bugs.webkit.org/show_bug.cgi?id=134500

        Reviewed by Darin Adler.

        Substitution of WTF::move() for std::move() rubber-stamped by Anders Carlsson.

        Implement WTF::move(), a replacement for std::move(). WTF::move() is less error
        prone than std::move() as it compile asserts that its argument is a non-const
        lvalue reference before ultimately casting it to a rvalue reference (via std::move).

        * wtf/Deque.h: Substitute WTF::move() for std::move().
        * wtf/HashMap.h: Ditto.
        * wtf/HashSet.h: Ditto.
        * wtf/HashTable.h: Ditto.
        * wtf/IteratorAdaptors.h: Ditto.
        * wtf/IteratorRange.h: Ditto.
        * wtf/ListHashSet.h: Ditto.
        * wtf/MainThread.cpp: Ditto.
        [...]
        * wtf/StdLibExtras.h:
        (WTF::move): Added.
        [...]

2014-07-03  Anders Carlsson  <andersca@apple.com>

        Get rid of Encoder.h and Decoder.h from WTF
        https://bugs.webkit.org/show_bug.cgi?id=134600

        Reviewed by Darin Adler.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/Decoder.h: Removed.
        * wtf/Encoder.h: Removed.

2014-07-03  Ryuan Choi  <ryuan.choi@samsung.com>

        Broken build with build-webkit --no-video
        https://bugs.webkit.org/show_bug.cgi?id=134587

        Reviewed by Darin Adler.

        MEDIA_CONTROLS_SCRIPT requires VIDEO enabled.

        * wtf/FeatureDefines.h: Added error message for dependency failure.

2014-07-02  Enrica Casucci  <enrica@apple.com>

        iOS build fix after http://trac.webkit.org/changeset/170697.
        
        Unreviewed.

        * wtf/Deque.h:

2014-07-02  Dan Bernstein  <mitz@apple.com>

        Remove some code only needed for versions of Safari that are no longer supported
        https://bugs.webkit.org/show_bug.cgi?id=134537

        Reviewed by Anders Carlsson.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2014-07-01  Alex Christensen  <achristensen@webkit.org>

        Reduce dynamic memory allocation in css jit.
        https://bugs.webkit.org/show_bug.cgi?id=134416

        Reviewed by Benjamin Poulain.

        * wtf/Deque.h:
        Added inlineCapacity optional template parameter.

2014-06-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r170605.
        https://bugs.webkit.org/show_bug.cgi?id=134484

        The changes cause crashes on ARM64 (Requested by benjaminp on
        #webkit).

        Reverted changeset:

        "Reduce dynamic memory allocation in css jit."
        https://bugs.webkit.org/show_bug.cgi?id=134416
        http://trac.webkit.org/changeset/170605

2014-06-30  Daniel Bates  <dabates@apple.com>

        Make TransformIterator::TransformIterator() take rvalue references
        https://bugs.webkit.org/show_bug.cgi?id=134468

        Reviewed by Darin Adler.

        It's unnecessary to support TransformIterator::TransformIterator() taking const lvalue references
        as we only call it with rvalues. As a side benefit, we can use move semantics to initialize the
        members of TransformIterator.

        * wtf/IteratorAdaptors.h:
        (WTF::TransformIterator::TransformIterator): Make constructor take arguments as rvalue references.
        (WTF::makeTransformIterator): Substitute std::move() for std::forward().

2014-06-30  Alex Christensen  <achristensen@webkit.org>

        Reduce dynamic memory allocation in css jit.
        https://bugs.webkit.org/show_bug.cgi?id=134416

        Reviewed by Benjamin Poulain.

        * wtf/Deque.h:
        Added inlineCapacity optional template parameter.

2014-06-30  Anders Carlsson  <andersca@apple.com>

        Add code for encoding legacy session history entries
        https://bugs.webkit.org/show_bug.cgi?id=134452

        Reviewed by Andreas Kling.

        * wtf/MallocPtr.h:
        (WTF::MallocPtr::malloc):
        (WTF::MallocPtr::realloc):

2014-06-27  Andreas Kling  <akling@apple.com>

        [ARMv7] Skip one particularly expensive fastFree() alignment check.
        <https://webkit.org/b/134402>

        The size class alignment check in fastFree() was crazy expensive on ARMv7
        due to its use of modulo. Disabling it shaves 470ms off of PLT main thread
        time in the web process.

        Note that this was very hard to identify in profiles due to TCO.

        Reviewed by Gavin Barraclough.

        * wtf/FastMalloc.cpp:
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):

2014-06-26  Andreas Kling  <akling@apple.com>

        Bump FastMalloc thread cache max size to 1MB on iOS.
        <https://webkit.org/b/134365>

        The previous limit (512kB) comes from the old days of very-low-memory
        devices, and we can now afford to spend another 512kB here.
        Note that we already have a mechanism to purge FastMalloc caches on
        system memory pressure.

        Looks like a ~400ms progression on PLT.

        Reviewed by Geoff Garen.

        * wtf/FastMalloc.cpp:

2014-06-26  Laszlo Gombos  <l.gombos@samsung.com>

        Define TARGET_OS_IPHONE to 0 for non-darwin ports
        https://bugs.webkit.org/show_bug.cgi?id=134347

        Reviewed by Darin Adler.

        A follow-up to r169880 to make it easier to reason about
        the code. The purpose of this change to allow
        "#if TARGET_OS_IPHONE" in public header files.

        * wtf/Platform.h:

2014-06-26  Chris Fleizach  <cfleizach@apple.com>

        Add an undo group for each dictated utterance in WebKit
        https://bugs.webkit.org/show_bug.cgi?id=134086

        Applied review comments from Sam Weinig.

        Move the associated USE #define into Platform.h.

        * wtf/Platform.h:

2014-06-25  Geoffrey Garen  <ggaren@apple.com>

        Unreviewed, rolling out r166876.

        Caused some ECMA test262 failures

        Reverted changeset:

        "Date object needs to check for ES5 15.9.1.14 TimeClip limit."
        https://bugs.webkit.org/show_bug.cgi?id=131248
        http://trac.webkit.org/changeset/166876

2014-06-25  peavo@outlook.com  <peavo@outlook.com>

        [Win64] ASM LLINT is not enabled.
        https://bugs.webkit.org/show_bug.cgi?id=130638

        Reviewed by Mark Lam.

        * wtf/Platform.h: Enable LLINT and JIT for Win64.

2014-06-25  Laszlo Gombos  <l.gombos@samsung.com>

        Remove build guard for progress element
        https://bugs.webkit.org/show_bug.cgi?id=134292

        Reviewed by Benjamin Poulain.

        The build flag is no longer needed as it is always on.

        * wtf/FeatureDefines.h:

2014-06-24  Andreas Kling  <akling@apple.com>

        Run the FastMalloc scavenger thread on iOS as well.
        <https://webkit.org/b/134287>
        <rdar://problem/17446198>

        Reviewed by Gavin Barraclough.

        * wtf/FastMalloc.cpp:

2014-06-24  Anders Carlsson  <andersca@apple.com>

        Add PageState to HistoryItem conversion code
        https://bugs.webkit.org/show_bug.cgi?id=134259

        Reviewed by Andreas Kling.

        * wtf/Optional.h:
        (WTF::Optional::valueOr):

2014-06-24  László Langó  <llango.u-szeged@partner.samsung.com>

        [JavaScriptCore] Enable concurrent JIT on EFL.
        https://bugs.webkit.org/show_bug.cgi?id=134242

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2014-06-23  Ryuan Choi  <ryuan.choi@samsung.com>

        [EFL] Replace RefPtr<Evas_Object> with UniquePtrEfl
        https://bugs.webkit.org/show_bug.cgi?id=134236

        Reviewed by Gyuyoung Kim.

        Although there are ref/unref for Evas_Object, it's bit odd so we should call evas_object_del to destroy it.
        So, this patch replaced RefPtr<Evas_Object> with UniquePtrEfl for the simplicity.

        * wtf/PlatformEfl.cmake: Removed RefPtrEfl.cpp from source list.
        * wtf/efl/RefPtrEfl.cpp: Removed.
        * wtf/efl/RefPtrEfl.h: Removed.

2014-06-21  Brady Eidson  <beidson@apple.com>

        Gamepad API - Deprecate the existing implementation
        https://bugs.webkit.org/show_bug.cgi?id=134108

        Reviewed by Timothy Hatcher.

        -Add new "GAMEPAD_DEPRECATED" build flag, moving the existing implementation to use it
        -Move some implementation files into a "deprecated" subdirectory.

        * wtf/FeatureDefines.h:

2014-06-21  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r170244.
        https://bugs.webkit.org/show_bug.cgi?id=134157

        GTK/EFL bindings generator works differently, making this
        patch not work there.  Will fix entire patch after a rollout.
        (Requested by bradee-oh on #webkit).

        Reverted changeset:

        "Gamepad API - Deprecate the existing implementation"
        https://bugs.webkit.org/show_bug.cgi?id=134108
        http://trac.webkit.org/changeset/170244

2014-06-21  Brady Eidson  <beidson@apple.com>

        Gamepad API - Deprecate the existing implementation
        https://bugs.webkit.org/show_bug.cgi?id=134108

        Reviewed by Timothy Hatcher.

        -Add new "GAMEPAD_DEPRECATED" build flag, moving the existing implementation to use it
        -Add the "Deprecated" suffix to some implementation files

        * wtf/FeatureDefines.h:

2014-06-21  Eva Balazsfalvi  <evab.u-szeged@partner.samsung.com>

        Removing PAGE_VISIBILITY_API compile guard.
        https://bugs.webkit.org/show_bug.cgi?id=133844

        Reviewed by Gavin Barraclough.

        * wtf/FeatureDefines.h:

2014-06-20  Anders Carlsson  <andersca@apple.com>

        Add encoding and decoding support for WTF::Optional
        https://bugs.webkit.org/show_bug.cgi?id=134125

        Reviewed by Andreas Kling.

        * wtf/Optional.h:
        (WTF::Optional::operator=):

2014-06-20  Anders Carlsson  <andersca@apple.com>

        Add copy/move constructors and assignment operators to WTF::Optional
        https://bugs.webkit.org/show_bug.cgi?id=134119

        Reviewed by Andreas Kling.

        * wtf/Optional.h:
        (WTF::Optional::Optional):
        (WTF::Optional::operator=):

2014-06-19  Anders Carlsson  <andersca@apple.com>

        Add WTF::Optional class
        https://bugs.webkit.org/show_bug.cgi?id=134083

        Reviewed by Andreas Kling.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Optional.h: Added.
        (WTF::Optional::Optional):
        (WTF::Optional::~Optional):
        (WTF::Optional::operator bool):
        (WTF::Optional::value):

2014-06-19  Dániel Bátyai  <dbatyai.u-szeged@partner.samsung.com>

        Remove ENABLE(LLINT) and ENABLE(LLINT_C_LOOP) guards
        https://bugs.webkit.org/show_bug.cgi?id=130389

        Reviewed by Mark Lam.

        Removed ENABLE(LLINT) since we always build with it, and changed ENABLE(LLINT_C_LOOP)
        into !ENABLE(JIT) since they are mutually exclusive.

        * wtf/OSAllocatorPosix.cpp:
        (WTF::OSAllocator::reserveAndCommit):
        * wtf/Platform.h:

2014-06-18  Anders Carlsson  <andersca@apple.com>

        Add CF type cast function templates and use them in KeyedDecoder in WebKit2
        https://bugs.webkit.org/show_bug.cgi?id=134033

        Reviewed by Sam Weinig.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/cf/TypeCasts.h: Added.
        (WTF::dynamic_cf_cast):
        Returns null if the given CFTypeRef object doesn't have the right type.

        (WTF::checked_cf_cast):
        ASSERTs (with security implication) if the given CFTypeRef object is null or doesn't have the right type.

2014-06-17  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Misused PLATFORM(MIDDLE_ENDIAN) and PLATFORM(BIG_ENDIAN).
        https://bugs.webkit.org/show_bug.cgi?id=128301

        Reviewed by Daniel Bates.

        Endianness is a CPU attribute, not a PLATFORM. PLATFORM() macro is replaced to CPU().

        * wtf/text/ASCIIFastPath.h:
        (WTF::copyLCharsFromUCharSource):

2014-06-17  Andreas Kling  <akling@apple.com>

        Web process main thread priority is lower than some network process threads.
        <https://webkit.org/b/133987>
        <rdar://problem/17330300>

        Bring all of our threads to the appropriate priority level by opting in to the
        threading QoS APIs. By marking them "user initiated", they still yield to UI
        interaction, but take priority over background tasks.

        Reviewed by Maciej Stachowiak.

        * wtf/Platform.h:
        * wtf/Threading.cpp:
        (WTF::setCurrentThreadIsUserInitiated):
        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::createThreadInternal):

2014-06-17  Alex Christensen  <achristensen@webkit.org>

        Enable css jit for armv7 on iOS.
        https://bugs.webkit.org/show_bug.cgi?id=133961
        <rdar://problem/17310631>

        Reviewed by Andreas Kling.

        * wtf/Platform.h:
        Enable css jit for ARM thumb on iOS.

2014-06-17  Dan Bernstein  <mitz@apple.com>

        String::isolatedCopy doesn’t return an isolated copy when used on an rvalue reference
        https://bugs.webkit.org/show_bug.cgi?id=133968

        Reviewed by Anders Carlsson.

        Made the rvalue reference overload of isolatedCopy() non-const, so that std::move(*this) is
        an rvalue reference that can be moved, rather than copied, into the returned String.

        * wtf/text/WTFString.cpp:
        (WTF::String::isolatedCopy):
        * wtf/text/WTFString.h:

2014-06-15  Dan Bernstein  <mitz@apple.com>

        iOS build fix after r169995.

        * wtf/RetainPtr.h:

2014-06-15  Anders Carlsson  <andersca@apple.com>

        Add an autorelease() member function to RetainPtr
        https://bugs.webkit.org/show_bug.cgi?id=133929

        Reviewed by Dan Bernstein.

        * wtf/RetainPtr.h:

2014-06-13  Alex Christensen  <achristensen@webkit.org>

        Unreviewed disabling css jit on armv7.  It's not quite ready yet.

        * wtf/Platform.h:
        Disable css jit on armv7.

2014-06-13  Alex Christensen  <achristensen@webkit.org>

        Enable css jit for armv7 on iOS.
        https://bugs.webkit.org/show_bug.cgi?id=133890
        <rdar://problem/17310631>

        Reviewed by Andreas Kling.

        * wtf/Platform.h:
        Enable css jit for ARM thumb on iOS.

2014-06-13  Mark Hahnenberg  <mhahnenberg@apple.com>

        OSR exit should barrier the Executables for all InlineCallFrames, not just those on the stack at the time of exit
        https://bugs.webkit.org/show_bug.cgi?id=133880

        Reviewed by Filip Pizlo.

        * wtf/Bag.h:
        (WTF::Bag::iterator::operator!=): Add != to the Bag iterator so we can use it in range-based iteration.

2014-06-12  Gavin Barraclough  <barraclough@apple.com>

        Add support for thread/WorkQueue QoS
        https://bugs.webkit.org/show_bug.cgi?id=130688

        Reviewed by Anders Carlson & Simon Fraser.

        Add the ability to mark threads as UserInteractive.

        * wtf/Threading.cpp:
        (WTF::setCurrentThreadIsUserInteractive):
            - added method to set QoS of current thread to UserInteractive.
        * wtf/Threading.h:
            - added declaration.

2014-06-12  Alexey Proskuryakov  <ap@apple.com>

        Fix Mac after r169880.

        This revision added a C++ comment to Platform.h, which breaks sandbox profile
        preprocessing.

        Also, I do not believe that this comment was entirely accurate - we've always used
        this technique with GCC, so there has to be more to it. So, I just removed the comment.

        * wtf/Platform.h:

2014-06-11  Csaba Osztrogonác  <ossy@webkit.org>

        [EFL][GTK] Ultimate fix not to have build failures
        in the future because of "#if TARGET_OS_IPHONE" guards.

        Unreviewed buildfix.

        * wtf/Platform.h: Define TARGET_OS_IPHONE to 0 on EFL and GTK.

2014-06-11  Ryosuke Niwa  <rniwa@webkit.org>

        Turning on DUMP_PROPERTYMAP_STATS causes a build failure
        https://bugs.webkit.org/show_bug.cgi?id=133673

        Reviewed by Andreas Kling.

        Added DEFINE_GLOBAL_FOR_LOGGING to allow running a destructor in logging code
        that needs to be enabled in release builds (e.g. for JavaScriptCore).

        * wtf/StdLibExtras.h:

2014-06-09  Benjamin Poulain  <bpoulain@apple.com>

        Improve CSSPrimitiveValue::customCSSText for ARMv7
        https://bugs.webkit.org/show_bug.cgi?id=133597

        Reviewed by Andreas Kling.

        * wtf/RefPtr.h:
        (WTF::RefPtr<T>::RefPtr):
        * wtf/text/WTFString.h:
        (WTF::String::String):

2014-06-05  Yoav Weiss  <yoav@yoav.ws>

        Align srcset parser with recent spec changes
        https://bugs.webkit.org/show_bug.cgi?id=133504

        Reviewed by Darin Adler.

        I've added toInt and toFloat methods to StringView, and exposed
        charactersToInt so that they can be used by
        HTMLSrcsetParser.cpp.

        * wtf/text/WTFString.h:
        * wtf/text/StringView.h:
        (WTF::StringView::toInt):
        (WTF::StringView::toFloat):

2014-06-04  Alex Christensen  <achristensen@webkit.org>

        Enable WebGL on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=133503

        Reviewed by Brent Fulgham.

        * wtf/FeatureDefines.h:
        Enable WebGL for AppleWin and WinCairo ports.

2014-06-01  Jer Noble  <jer.noble@apple.com>

        [MSE] Appends of overlapping sample data do not clear existing samples properly.
        https://bugs.webkit.org/show_bug.cgi?id=133435

        Reviewed by Darin Adler.

        Add a dump method to MediaTime, so that MediaTimes can be easily converted to strings (for logging purposes).

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::dump):
        * wtf/MediaTime.h:

2014-05-31  Anders Carlsson  <andersca@apple.com>

        Add a LazyNeverDestroyed class template and use it
        https://bugs.webkit.org/show_bug.cgi?id=133425

        Reviewed by Darin Adler.

        LazyNeverDestroyed is similar to NeverDestroyed, except it's lazily constructed
        by calling construct(). This makes it useful for using inside std::call_once functions.
        
        * wtf/Forward.h:
        * wtf/NeverDestroyed.h:
        (WTF::LazyNeverDestroyed::construct):
        (WTF::LazyNeverDestroyed::operator T&):
        (WTF::LazyNeverDestroyed::get):
        (WTF::LazyNeverDestroyed::asPtr):
        (WTF::LazyNeverDestroyed::MaybeRelax::MaybeRelax):
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        (WTF::atomicallyInitializedStaticMutex):
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::cachedCollatorMutex):

2014-05-29  Alex Christensen  <achristensen@webkit.org>

        Enable css jit by default on arm64.
        https://bugs.webkit.org/show_bug.cgi?id=133246
        <rdar://problem/17073407>

        Reviewed by Benjamin Poulain.

        * wtf/Platform.h:
        Added arm64 to list of supported architectures.

2014-05-28  Filip Pizlo  <fpizlo@apple.com>

        DFG::DCEPhase inserts into an insertion set in reverse, causing hilarious basic block corruption if you kill a lot of NewArrays
        https://bugs.webkit.org/show_bug.cgi?id=133368

        Reviewed by Mark Lam.

        * wtf/Insertion.h:
        (WTF::executeInsertions): This algorithm is only correct if insertions are added in the right order. Assert that the order is right.

2014-05-27  Jon Lee  <jonlee@apple.com>

        Update ENABLE(MEDIA_SOURCE) on Mac
        https://bugs.webkit.org/show_bug.cgi?id=133141

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h: #ifdef unneeded for Mac since it's covered in the .xcconfigs.

2014-05-27  Tibor Meszaros  <tmeszaros.u-szeged@partner.samsung.com>

        Remove BLOB guards
        https://bugs.webkit.org/show_bug.cgi?id=132863

        Reviewed by Csaba Osztrogonác.

        * wtf/FeatureDefines.h:

2014-05-27  Gwang Yoon Hwang  <yoon@igalia.com>

        [GLIB] RunLoop::dispatch always executes the function on the main thread instead of the target thread.
        https://bugs.webkit.org/show_bug.cgi?id=133291

        Reviewed by Carlos Garcia Campos.

        GMainLoopSource::schedule[AfterDelay] must be used with the appropriate
        GMainContext. Because current implementations in RunLoopGtk passes nullptr
        instead of its runLoopContext when using GMainLoopSource, all of dispatched
        functions are executed on the main thread regardless of which runloops is used.

        This patch fixes the issue by passing the m_runLoopContext instead the default
        parameter to the GMainLoopSource::schedule[AfterDelay].

        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::start):

2014-05-26  Darin Adler  <darin@apple.com>

        Class name matching should use ASCII case-insensitive matching, not Unicode case folding
        https://bugs.webkit.org/show_bug.cgi?id=133292

        Reviewed by Anders Carlsson.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::addSlowCase): Change to take references instead of pointers since these
        arguments can never be null.
        (WTF::AtomicString::lower): Rearranged slightly to use PassRef in a more efficient but
        slightly uglier way.
        (WTF::AtomicString::convertToASCIILowercase): Added.
        * wtf/text/AtomicString.h: Updated for above changes.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::convertToASCIILowercase): Added.
        * wtf/text/StringImpl.h: Updated for above.

        * wtf/text/WTFString.cpp:
        (WTF::String::convertToASCIILowercase): Added.
        * wtf/text/WTFString.h: Updated for above.

2014-05-22  Zan Dobersek  <zdobersek@igalia.com>

        Add the partial specialization for VectorTraits<std::unique_ptr<P>>
        https://bugs.webkit.org/show_bug.cgi?id=133083

        Reviewed by Andreas Kling.

        * wtf/VectorTraits.h: Like for RefPtr<P>, OwnPtr<P> and Ref<P>, the partial
        specialization for VectorTraits<std::unique_ptr<P>> should exist and should
        inherit from SimpleClassVector.

2014-05-20  Geoffrey Garen  <ggaren@apple.com>

        Rolled out <http://trac.webkit.org/changeset/166184>
        https://bugs.webkit.org/show_bug.cgi?id=133144

        Reviewed by Gavin Barraclough.

        It caused a performance regression.

        * wtf/FastMalloc.cpp:
        (WTF::TCMalloc_PageHeap::runScavengerThread):
        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::createThreadInternal):
        (WTF::setCurrentThreadQOSUtility): Deleted.
        * wtf/ThreadingWin.cpp:
        (WTF::setCurrentThreadQOSUtility): Deleted.

2014-05-20  Jer Noble  <jer.noble@apple.com>

        [Mac] AVAssets are never destroyed; lack of an autorelease pool when calling callOnMainThread.
        https://bugs.webkit.org/show_bug.cgi?id=133130

        Reviewed by Geoff Garen.

        Wrap the function to be called in an autorelease pool, so that autoreleased objects are cleaned
        up immediately after the end of the function.

        * wtf/mac/MainThreadMac.mm:
        (WTF::timerFired):

2014-05-18  Rik Cabanier  <cabanier@adobe.com>

        support for navigator.hardwareConcurrency
        https://bugs.webkit.org/show_bug.cgi?id=132588

        Reviewed by Filip Pizlo.

        * wtf/FeatureDefines.h:

2014-05-14  Tibor Meszaros  <tmeszaros.u-szeged@partner.samsung.com>

        Remove CSS_STICKY_POSITION guards
        https://bugs.webkit.org/show_bug.cgi?id=132676

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2014-05-13  Simon Fraser  <simon.fraser@apple.com>

        [iOS WK2] background-attachment:fixed behaves very poorly
        https://bugs.webkit.org/show_bug.cgi?id=132881
        <rdar://problem/16789526>

        Reviewed by Beth Dakin.
        
        Remove ENABLE_FAST_MOBILE_SCROLLING. Ports can use the fixedBackgroundsPaintRelativeToDocument
        setting now.

        * wtf/FeatureDefines.h:

2014-05-08  Alexey Proskuryakov  <ap@apple.com>

        Automatically zip document bundles used via File API
        https://bugs.webkit.org/show_bug.cgi?id=132713
        <rdar://problem/13397892>

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h: Added ENABLE_FILE_REPLACEMENT for Mac.

2014-05-07  Filip Pizlo  <fpizlo@apple.com>

        UNREACHABLE_FOR_PLATFORM() is meant to be a release crash.

        Rubber stamped by Mark Hahnenberg..

        * wtf/Assertions.h:
        (UNREACHABLE_FOR_PLATFORM):

2014-05-06  Alberto Garcia  <berto@igalia.com>

        There is no HW_AVAILCPU on FreeBSD, NetBSD, and OpenBSD
        https://bugs.webkit.org/show_bug.cgi?id=132542

        Reviewed by Michael Saboff.

        Use sysconf() to get the number of processor cores.

        * wtf/NumberOfCores.cpp:
        (WTF::numberOfProcessorCores):

2014-05-04  Darin Adler  <darin@apple.com>

        RetainPtr: Use adoptCF function instead of AdoptCF constructor argument
        https://bugs.webkit.org/show_bug.cgi?id=80222

        Reviewed by Alexey Proskuryakov.

        All the clients are gone, so we can now remove AdoptCF and AdoptNS.

        * wtf/RetainPtr.h: Removed the public constructors that let you specify AdoptCF
        and AdoptNS. Instead, made the adoptCF and adoptNS functions be friends and use
        a private constructor that takes an Adopt argument.
        (WTF::adoptCF): Moved the Objective-C class check in here.
        (WTF::adoptNS): Moved the code to deal with the CFRetain for garbage collection
        in here; it used to be spread across the constructor and adoptNSReference.

2014-05-04  Andreas Kling  <akling@apple.com>

        Optimize JSRopeString for resolving directly to AtomicString.
        <https://webkit.org/b/132548>

        Add AtomicString::find([LU]Char*, unsigned length) helpers for finding
        an existing AtomicString without a StringImpl on hand.

        Reviewed by Filip Pizlo.

        * wtf/text/AtomicString.h:
        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::find):

2014-05-01  Brent Fulgham  <bfulgham@apple.com>

        Fix handling of attributes prior to compiling shader
        https://bugs.webkit.org/show_bug.cgi?id=132430

        Reviewed by Dean Jackson.

        WebGL programs that called bindAttribLocations prior to compiling shader sources
        would perform the bind using the non-hashed symbol name, but would later create
        the attributes as hashed names. Consequently, the program would refer to
        attributes that were never actually part of any shader, resulting in some amazing
        display artifacts.

        This patch adds a dictionary of hashed symbol names so that we can tell the WebGL
        program the proper name that will be used when the shader is eventually compiled,
        allowing the WebGL program to link against the proper symbol after compiling and
        linking completes.

        * wtf/HexNumber.h:
        (WTF::appendUnsigned64AsHex): Add uint64_t-compatible hex->string converter.

2014-04-30  Geoffrey Garen  <ggaren@apple.com>

        Link against bmalloc in production builds
        https://bugs.webkit.org/show_bug.cgi?id=132413

        Reviewed by Sam Weinig.

        Production builders have been configured to handle this, so let's build
        it.

        * Configurations/WTF.xcconfig:

2014-05-01  Ryuan Choi  <ryuan.choi@samsung.com>

        [EFL] There are many warnings with software backend
        https://bugs.webkit.org/show_bug.cgi?id=132422

        Reviewed by Gyuyoung Kim.

        * wtf/efl/EflTypedefs.h: Added Ecore_X_Window typedef

2014-04-30  Simon Fraser  <simon.fraser@apple.com>

        Remove ENABLE_PLUGIN_PROXY_FOR_VIDEO
        https://bugs.webkit.org/show_bug.cgi?id=132396

        Reviewed by Eric Carlson.

        Remove ENABLE_PLUGIN_PROXY_FOR_VIDEO and related code.

        * wtf/FeatureDefines.h:

2014-04-30  Víctor Manuel Jáquez Leal  <vjaquez@igalia.com>

        [GTK][GStreamer] Remove unnecessary GLIB_CHECK_VERSION #ifdefs
        https://bugs.webkit.org/show_bug.cgi?id=132390

        Reviewed by Philippe Normand.

        Since EFL port use GLib 2.38 and GTK+, 2.33.2, I assume it is OK
        remove, in GTK+ and GST, the existing glib version guards.

        This code was rollback from r149879 because Qt MIPS used it. But since
        Qt is gone, it is safe to remove now.

        * wtf/gobject/GRefPtr.cpp:
        (WTF::refGPtr): Deleted.
        (WTF::derefGPtr): Deleted.

2014-04-29  Alex Christensen  <achristensen@webkit.org>

        [WinCairo] Switch video from GStreamer to Media Foundation.
        https://bugs.webkit.org/show_bug.cgi?id=132358

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.vcxproj:
        Removed dependencies on GStreamer.
        * wtf/Platform.h:
        Use Media Foundation instead of GStreamer and GLib.

2014-04-29  Filip Pizlo  <fpizlo@apple.com>

        Unreviewed, fix cloop build.

        * wtf/Platform.h:

2014-04-29  Michael Saboff  <msaboff@apple.com>

        For DARWIN platforms, use system temporary directory for DataLog output
        https://bugs.webkit.org/show_bug.cgi?id=132346

        Reviewed by Geoffrey Garen.

        Added code to call confstr() to access the process's temporary directory to use that
        location instead of /tmp/.  Put the code behind #ifdef DATA_LOG_TO_DARWIN_TEMP_DIR.

        * wtf/DataLog.cpp:
        (WTF::initializeLogFileOnce):

2014-04-25  Filip Pizlo  <fpizlo@apple.com>

        Figure out how many cores are available for realsies.

        Rubber stamped by Andreas Kling.
        
        HW_AVAILCPU is more canonical than HW_NCPU. For example if you use hacks to tell Darwin
        to make it seem like there are fewer CPUs, HW_AVAILCPU will change but HW_NCPU won't.
        HW_NCPU doesn't reflect how much actual paralellism you'll get; it's merely reporting
        facts about the machine you're running on. HW_AVAILCPU is almost always what WebKit
        wants since it uses this information to decide how many threads to launch for various
        things.

        * wtf/NumberOfCores.cpp:
        (WTF::numberOfProcessorCores):

2014-04-22  Brent Fulgham  <bfulgham@apple.com>

        [Win] Support Python 2.7 in Cygwin
        https://bugs.webkit.org/show_bug.cgi?id=132023

        Reviewed by Michael Saboff.

        * WTF.vcxproj/WTFGenerated.make: Use proper path to Python.

2014-04-21  Eric Carlson  <eric.carlson@apple.com>

        [Mac] implement WebKitDataCue
        https://bugs.webkit.org/show_bug.cgi?id=131799

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h: Define ENABLE_DATACUE_VALUE.

2014-04-21  Darin Adler  <darin@apple.com>

        Add HashSet::takeAny
        https://bugs.webkit.org/show_bug.cgi?id=131928

        Reviewed by Benjamin Poulain.

        * wtf/HashSet.h: Added an overload of take that takes an iterator,
        and used it to implement both the existing take and new takeAny functions.

2014-04-20  Andreas Kling  <akling@apple.com>

        Speed up jsStringWithCache() through WeakGCMap inlining.
        <https://webkit.org/b/131923>

        Add HashMap::fastAdd(), which is the same as add() except we'll tell
        the compiler to aggressively inline it.

        Reviewed by Darin Adler.

        * wtf/HashMap.h:
        * wtf/HashTable.h:

2014-04-19  Filip Pizlo  <fpizlo@apple.com>

        Make it easier to check if an integer sum would overflow
        https://bugs.webkit.org/show_bug.cgi?id=131900

        Reviewed by Darin Adler.

        * wtf/CheckedArithmetic.h:
        (WTF::checkedSum):
        (WTF::sumOverflows):

2014-04-18  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r167527.
        https://bugs.webkit.org/show_bug.cgi?id=131883

        Broke 32-bit build (Requested by ap on #webkit).

        Reverted changeset:

        "[Mac] implement WebKitDataCue"
        https://bugs.webkit.org/show_bug.cgi?id=131799
        http://trac.webkit.org/changeset/167527

2014-04-18  Eric Carlson  <eric.carlson@apple.com>

        [Mac] implement WebKitDataCue
        https://bugs.webkit.org/show_bug.cgi?id=131799

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h: Define ENABLE_DATACUE_VALUE.

2014-04-18  Martin Robinson  <mrobinson@igalia.com>

        Remove DynamicAnnotations.h?
        https://bugs.webkit.org/show_bug.cgi?id=131754

        Reviewed by Simon Fraser.

        This file, which helped support tools like Valgrind was unused.

        * WTF.vcxproj/WTF.vcxproj: Remove references to the files.
        * WTF.vcxproj/WTF.vcxproj.filters: Remove references to the files.
        * WTF.xcodeproj/project.pbxproj: Remove references to the files.
        * wtf/CMakeLists.txt: Remove references to the files.
        * wtf/DynamicAnnotations.cpp: Removed.
        * wtf/DynamicAnnotations.h: Removed.
        * wtf/ThreadSafeRefCounted.h: Remove references to the files.
        * wtf/text/StringStatics.cpp: Remove references to the files.

2014-04-18  Philippe Normand  <pnormand@igalia.com>

        Remove NETWORK_INFO support
        https://bugs.webkit.org/show_bug.cgi?id=131841

        Reviewed by Gyuyoung Kim.

        * wtf/FeatureDefines.h:

2014-04-17  Filip Pizlo  <fpizlo@apple.com>

        Don't include CompilationThread.h from StringImpl.h
        https://bugs.webkit.org/show_bug.cgi?id=131817

        Reviewed by Simon Fraser.

        * wtf/CompilationThread.h:
        * wtf/StdLibExtras.h:
        * wtf/text/StringImpl.h:

2014-04-17  Darin Adler  <darin@apple.com>

        Use HashMap<unique_ptr> and Vector<unique_ptr> instead of deprecatedDeleteAllValues
        https://bugs.webkit.org/show_bug.cgi?id=73757

        Reviewed by Brent Fulgham.

        * wtf/Vector.h:
        (WTF::deprecatedDeleteAllValues): Deleted.

2014-04-17  Darin Adler  <darin@apple.com>

        Add separate flag for IndexedDatabase in workers since the current implementation is not threadsafe
        https://bugs.webkit.org/show_bug.cgi?id=131785
        rdar://problem/16003108

        Reviewed by Brady Eidson.

        * wtf/FeatureDefines.h: Added INDEXED_DATABASE_IN_WORKERS.

2014-04-16  Simon Fraser  <simon.fraser@apple.com>

        Don't include CryptographicallyRandomNumber.h in StringImpl.h
        https://bugs.webkit.org/show_bug.cgi?id=131772

        Reviewed by Sam Weinig.

        * wtf/text/StringImpl.h:

2014-04-16  Gavin Barraclough  <barraclough@apple.com>

        Update to pthread QoS SPI
        https://bugs.webkit.org/show_bug.cgi?id=131753

        Rubber stamped by Benjamin Poulain

        * wtf/ThreadingPthreads.cpp:
        (WTF::setCurrentThreadQOSUtility):

2014-04-14  Geoffrey Garen  <ggaren@apple.com>

        WTF should have an optional mbmalloc target so we can benchmark FastMalloc
        https://bugs.webkit.org/show_bug.cgi?id=131662

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj: Added the target.
        * wtf/mbmalloc.cpp: Added. Implements the libmbmalloc.dylib API required
        by MallocBench.

2014-04-16  Darin Adler  <darin@apple.com>

        Make Vector::takeLast work with move-only types (and optimize for types where move is faster)
        https://bugs.webkit.org/show_bug.cgi?id=131735

        Reviewed by Alexey Proskuryakov.

        * wtf/Vector.h:
        (WTF::Vector::takeLast): Added a missing std::move. All the other take functions have it.

2014-04-14  Mark Lam  <mark.lam@apple.com>

        monotonicallyIncreasingTime() should only initialize its static timebaseInfo once.
        <https://webkit.org/b/131630>

        Reviewed by Filip Pizlo.

        The current initialization of the static field is not thread safe.

        * wtf/CurrentTime.cpp:
        (WTF::monotonicallyIncreasingTime):

2014-04-14  Benjamin Poulain  <benjamin@webkit.org>

        [JSC] Improve the call site of string comparison in some hot path
        https://bugs.webkit.org/show_bug.cgi?id=131605

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.cpp:
        (WTF::stringImplContentEqual):
        Inline that function to reduce the call overhead for JSC.
        This is only inlined twice, it is not catastrophic for our binary.

2014-04-13  Andy Estes  <aestes@apple.com>

        Relax adoption requirements of RefCounted objects that are NeverDestroyed
        https://bugs.webkit.org/show_bug.cgi?id=131593

        Reviewed by Dan Bernstein.

        RefCounted objects that are created by NeverDestroyed<> won't have a
        RefPtr adopting them, so call relaxAdoptionRequirements().

        * wtf/NeverDestroyed.h:
        (WTF::NeverDestroyed::NeverDestroyed):
        (WTF::NeverDestroyed::MaybeRelax::MaybeRelax):

2014-04-10  Brent Fulgham  <bfulgham@apple.com>

        [Win] Clean up some 64-bit warnings from Visual Studio analyzer
        https://bugs.webkit.org/show_bug.cgi?id=131514

        Reviewed by Tim Horton.

        * WTF.vcxproj/WTF.vcxproj: Use correct platform settings for
        64-bit build.
        * config.h: Ditto.
        * wtf/CurrentTime.cpp:
        (WTF::highResUpTime): Resolve warning about deprecated API.
        * wtf/StackBounds.cpp:
        (WTF::StackBounds::initialize): Silence warning about
        an uninitialized variable.

2014-04-09  Geoffrey Garen  <ggaren@apple.com>

        Rolled back in r166972.

        This time, we conditionally exclude linking against bmalloc in Production
        builds. Production builds will not be able to link against bmalloc
        until the Production build system has been updated to build bmalloc.

            WTF should link against bmalloc
            https://bugs.webkit.org/show_bug.cgi?id=131403

            Reviewed by Mark Rowe.

            * Configurations/WTF.xcconfig:
            * WTF.xcodeproj/project.pbxproj:

2014-04-09  Geoffrey Garen  <ggaren@apple.com>

        Put bmalloc headers in the right place
        https://bugs.webkit.org/show_bug.cgi?id=131464

        Reviewed by Mark Rowe.

        * wtf/FastMalloc.cpp: Use "<bmalloc/...>" syntax so we can find our
        headers in <header-root>/usr/local/include/bmalloc/.

2014-04-09  Geoffrey Garen  <ggaren@apple.com>

        Rolled back out r166972.

        The production buildbots are still broken because the build-root script
        doesn't build bmalloc.

        * WTF.xcodeproj/project.pbxproj:

2014-04-09  Geoffrey Garen  <ggaren@apple.com>

        Rolled back in r166972.

        The iOS buildbot's scripts have been updated to build bmalloc, so the
        build should now succeed on the bot.

        Also renamed "Frameworks" to "Libraries" as suggested in a review comment.

            WTF should link against bmalloc
            https://bugs.webkit.org/show_bug.cgi?id=131403

            Reviewed by Michael Saboff.

            This is required to build successfullly with bmalloc enabled.

            * WTF.xcodeproj/project.pbxproj:

2014-04-08  Geoffrey Garen  <ggaren@apple.com>

        Stop linking WTF against bmalloc.

        Reviewed by Enrica Casucci.

        This seems to have broken an iOS buildbot script. Disable it for now
        until we can fix the script.

        * WTF.xcodeproj/project.pbxproj:

2014-04-08  Geoffrey Garen  <ggaren@apple.com>

        WTF should link against bmalloc
        https://bugs.webkit.org/show_bug.cgi?id=131403

        Reviewed by Michael Saboff.

        This is required to build successfullly with bmalloc enabled.

        * WTF.xcodeproj/project.pbxproj:

2014-04-08  Geoffrey Garen  <ggaren@apple.com>

        Added a bmalloc back-end for FastMalloc
        https://bugs.webkit.org/show_bug.cgi?id=131387

        Reviewed by Andreas Kling.

        We'll need to rethink some things if we adopt this back-end. For example,
        fastMallocSize() and fastMallocGoodSize() are no longer real things. But,
        this is enough to test for now.

        * wtf/FastMalloc.cpp:
        (WTF::fastMalloc):
        (WTF::fastCalloc):
        (WTF::fastRealloc):
        (WTF::fastFree):
        (WTF::fastMallocSize):
        (WTF::fastMallocGoodSize):
        (WTF::tryFastMalloc):
        (WTF::tryFastRealloc):
        (WTF::tryFastCalloc):
        (WTF::releaseFastMallocFreeMemory):
        (WTF::fastMallocStatistics):

2014-04-08  Andres Gomez  <agomez@igalia.com>

        [GTK] [EFL] Build fails with GCC < 4.8.x
        https://bugs.webkit.org/show_bug.cgi?id=130585

        Reviewed by Martin Robinson.

        The behavior in lower versions of GCC seem to be related to
        http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#2132.

        Provided explicit casts for the failing ambiguous overloads.

        * wtf/gtk/MainThreadGtk.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread):
        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::wakeUp): Provided lambda with a RefPtr instead of
        ref and de-referring.

2014-04-04  Mark Lam  <mark.lam@apple.com>

        Date object needs to check for ES5 15.9.1.14 TimeClip limit.
        <https://webkit.org/b/131248>

        Reviewed by Mark Hahnenberg.

        * wtf/DateMath.cpp:
        - Moved the definition of maxECMAScriptTime to the .h file so that we
          can use it in other files as well.
        (WTF::msToYear):
        - Removed a stale comment for parseDateFromNullTerminatedCharacters().
        * wtf/DateMath.h:

2014-04-04  Mark Hahnenberg  <mhahnenberg@apple.com>

        Enhanced GC logging
        https://bugs.webkit.org/show_bug.cgi?id=131246

        Reviewed by Geoff Garen.

        Remove OBJECT_MARK_LOGGING

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2014-04-03  Zsolt Borbely  <zsborbely.u-szeged@partner.samsung.com>

        [EFL] Enable CSS JIT again, it works fine after r166666.

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2014-04-03  Javier Fernandez  <jfernandez@igalia.com>

        [GTK][Cmake] Enable CSS JIT
        https://bugs.webkit.org/show_bug.cgi?id=131022

        Reviewed by Martin Robinson.

        * wtf/Platform.h: Enable CSS JIT for GTK port.

2014-04-02  Frédéric Wang  <fred.wang@free.fr>

        Operator stretching: read the Open Type MATH table
        https://bugs.webkit.org/show_bug.cgi?id=130324

        Reviewed by Chris Fleizach.

        * wtf/Platform.h: enable OPENTYPE_MATH on platforms that can read OpenType tables.

2014-04-02  Alex Christensen  <achristensen@webkit.org>

        [WinCairo] Build fix with GMainLoopSource.
        https://bugs.webkit.org/show_bug.cgi?id=131089

        Reviewed by Carlos Garcia Campos.

        * wtf/gobject/GMainLoopSource.cpp:
        Only compile if glib is used, which fixes compile errors with video disabled in WinCairo.
        * wtf/gobject/GMainLoopSource.h:
        Export the GMainLoopSource functions to WTF.dll to link with where they are called in the GStreamer code.
        Also removed spaces to appease style bot.

2014-04-01  Zsolt Borbely  <zsborbely.u-szeged@partner.samsung.com>

        [EFL] REGRESSION(166569): It made DoYouEvenBench/Full.html, CSS/QuerySelector.html and Dromaeo performance tests crash
        https://bugs.webkit.org/show_bug.cgi?id=131039

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h: Disable CSS JIT on EFL until proper fix.

2014-04-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r166583.
        https://bugs.webkit.org/show_bug.cgi?id=131040

        It's causing frequent crashes when running Layout Tests
        (Requested by svillar on #webkit).

        Reverted changeset:

        "[GTK][Cmake] Enable CSS JIT"
        https://bugs.webkit.org/show_bug.cgi?id=131022
        http://trac.webkit.org/changeset/166583

2014-04-01  Javier Fernandez  <jfernandez@igalia.com>

        [GTK][Cmake] Enable CSS JIT
        https://bugs.webkit.org/show_bug.cgi?id=131022

        Reviewed by Martin Robinson.

        * wtf/Platform.h: Enable CSS JIT for GTK port.

2014-04-01  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        [CMake][EFL] Enable CSS JIT
        https://bugs.webkit.org/show_bug.cgi?id=131010

        Reviewed by Benjamin Poulain.

        * wtf/Platform.h: Enable CSS JIT for EFL port.

2014-03-31  Dean Jackson  <dino@apple.com>

        Remove WEB_ANIMATIONS
        https://bugs.webkit.org/show_bug.cgi?id=130989

        Reviewed by Simon Fraser.

        Remove this feature flag until we plan to implement.

        * wtf/FeatureDefines.h:

2014-03-31  Alex Christensen  <achristensen@webkit.org>

        Preparation for using Soup on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=130615

        Reviewed by Carlos Garcia Campos.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        Add all gobject source files in WinCairo build.
        * wtf/gobject/GRefPtr.h:
        Export refGPtr and derefGPtr overloads in WTF.dll to fix linker errors with WebKit.dll when using soup.

2014-03-31  Zan Dobersek  <zdobersek@igalia.com>

        Use std::unique_ptr in WTF::CompressedVector, WTF::GenericCompressedData
        https://bugs.webkit.org/show_bug.cgi?id=130737

        Switch to using std::unique_ptr instead of OwnPtr and PassOwnPtr
        for the CompressedVector and GenericCompressedData classes.

        * wtf/Compression.cpp:
        (WTF::GenericCompressedData::create):
        * wtf/Compression.h:
        (WTF::CompressedVector::create):
        (WTF::CompressibleVector::decompressIfNecessary):

2014-03-28  Alexey Proskuryakov  <ap@apple.com>

        [Mac] Enable async text input implementation
        https://bugs.webkit.org/show_bug.cgi?id=130856

        Reviewed by Sam Weinig.

        * wtf/Platform.h: Added a USE macro definition.

2014-03-28  peavo@outlook.com  <peavo@outlook.com>

        Null pointer crash in String::append(UChar).
        https://bugs.webkit.org/show_bug.cgi?id=130900

        Reviewed by Michael Saboff.

        * wtf/text/WTFString.cpp:
        (WTF::String::append): Check and initialize m_impl member first, to avoid null pointer crash.

2014-03-27  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r166360.
        https://bugs.webkit.org/show_bug.cgi?id=130869

        Seems to have broken PLT (Requested by ap on #webkit).

        Reverted changeset:

        "Connection::dispatchOneMessage() can be re-entered while
        handling Cmd-key menu"
        https://bugs.webkit.org/show_bug.cgi?id=130767
        http://trac.webkit.org/changeset/166360

2014-03-27  Alexey Proskuryakov  <ap@apple.com>

        Connection::dispatchOneMessage() can be re-entered while handling Cmd-key menu
        equivalents, ASSERT(!_data->_keyDownEventBeingResent)
        https://bugs.webkit.org/show_bug.cgi?id=130767
        <rdar://problem/16307487>

        Reviewed by Darin Adler.

        Changed RunLoop to wake up and fire timers only in default run loop mode by default,
        and added an ability to add more modes (can't use AppKit symbols in WTF).

        In addition to this bug, the change also blocks modal alerts from appearing under
        menus during menu tracking.

        * wtf/RunLoop.h:
        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::addModeForWakeUpAndTimers):
        (WTF::RunLoop::TimerBase::start):

2014-03-26  Zan Dobersek  <zdobersek@igalia.com>

        Unreviewed. Removing the remaining Automake cruft.

        * GNUmakefile.list.am: Removed.

2014-03-25  Martin Robinson  <mrobinson@igalia.com>

        [GTK] Remove the autotools build
        https://bugs.webkit.org/show_bug.cgi?id=130717

        Reviewed by Anders Carlsson.

        * GNUmakefile.am: Removed.
        * config.h: Removed references to the autotools configure file.

2014-03-25  Gabor Rapcsanyi  <rgabor@webkit.org>

        [ARM64] GCC generates wrong code with -O2 flag in WTF::weakCompareAndSwap
        https://bugs.webkit.org/show_bug.cgi?id=130500

        Reviewed by Filip Pizlo.

        Set the first operand to the exact register in the inline assembly with GCC.

        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):

2014-03-25  Gabor Rapcsanyi  <rgabor@webkit.org>

        [EFL] Add ARM64 build support
        https://bugs.webkit.org/show_bug.cgi?id=130506

        Rubber stamped by Gyuyoung Kim.

        * wtf/Platform.h: Set WTF_CPU_ARM64 when __aarch64__ is defined.

2014-03-24  Andy Estes  <aestes@apple.com>

        Fix the iOS build.

        * wtf/ThreadingPthreads.cpp:
        (WTF::createThreadInternal):
        (WTF::setCurrentThreadQOSUtility):

2014-03-24  Gavin Barraclough  <barraclough@apple.com>

        Add support for thread QoS
        https://bugs.webkit.org/show_bug.cgi?id=130688

        Speculative EFL build fix.

        * wtf/ThreadingPthreads.cpp:
        (WTF::setCurrentThreadQOSUtility):

2014-03-24  Gavin Barraclough  <barraclough@apple.com>

        Add support for thread QoS
        https://bugs.webkit.org/show_bug.cgi?id=130688

        Reviewed by Andreas Kling.

        * wtf/FastMalloc.cpp:
        (WTF::TCMalloc_PageHeap::runScavengerThread):
            - block freeing is a utility activity.
        * wtf/Threading.h:
            - declaration.
        * wtf/ThreadingPthreads.cpp:
        (WTF::createThreadInternal):
            - default to interactive.
        (WTF::setCurrentThreadQOSUtility):
            - implementation.
        * wtf/ThreadingWin.cpp:
        (WTF::setCurrentThreadQOSUtility):
            - no-op implementation.

2014-03-23  Hyowon Kim  <hw1008.kim@samsung.com>

        Move all EFL typedefs into EflTypedefs.h.
        https://bugs.webkit.org/show_bug.cgi?id=130511

        Reviewed by Gyuyoung Kim.

        * wtf/Platform.h: include EflTypedefs.h.
        * wtf/efl/EflTypedefs.h: Added.
        * wtf/efl/RefPtrEfl.h: Remove EFL typedefs.

2014-03-22  Darin Adler  <darin@apple.com>

        Remove String::deprecatedCharacters
        https://bugs.webkit.org/show_bug.cgi?id=126854

        Reviewed by Sam Weinig.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString): Removed code to update 16-bit shadow.

        * wtf/text/StringBuilder.h: Removed deprecatedCharacters.
        (WTF::StringBuilder::StringBuilder): Removed m_valid16BitShadowLength.
        (WTF::StringBuilder::clear): Removed code to clear m_valid16BitShadowLength.
        (WTF::StringBuilder::swap): Removed code to swap m_valid16BitShadowLength.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl): Removed code to free m_copyData16.
        (WTF::StringImpl::upper): Use StringView::upconvertedCharacters for slow case.
        (WTF::StringImpl::lower): Ditto.
        (WTF::StringImpl::find): Use characters8/16 rather than deprecatedCharacters.
        Added an 8-bit code path to one of the overloads. Might want to revisit later
        to decide whether to use templates instead of copy/paste, or even use StringView
        to cut down on duplicate code paths.
        (WTF::StringImpl::findIgnoringCase): Ditto.
        (WTF::StringImpl::sizeInBytes): Remove code to handle has16BitShadow case.
        (WTF::equalIgnoringNullity): Added. To be called by the Vector template in the header.

        * wtf/text/StringImpl.h: Removed deprecatedCharacters, has16BitShadow,
        upconvertCharacters, getData16SlowCase, s_hashFlagHas16BitShadow, and m_copyData16.
        (WTF::equalIgnoringNullity): Changed the template function into an inline that calls
        a non-inline helper function. The non-inline function handles both 8-bit and 16-bit
        strings.

        * wtf/text/StringView.h:
        (WTF::StringView::StringView): Added an overload so we can make one of these directly
        from a StringImpl without first wrapping it in a string. Added an adapter so we can
        use StringView as part of string concatenation. Added an append function so we can
        append to a Vector<UChar>.

        * wtf/text/WTFString.cpp:
        (WTF::String::append): Use StringView::getCharactersWithUpconvert. Also changed
        single-character append so it won't always turn an 8-bit string into a 16-bit one.
        (WTF::String::insert): Removed one insert overload and changed the other to use
        StringView::getCharactersWithUpconvert.
        (WTF::String::truncate): Changed to use StringImpl::substring.
        (WTF::String::percentage): Added characters8/16 paths instead of using
        deprecatedCharacters.

        * wtf/text/WTFString.h: Removed deprecatedCharacters, getCharactersWithUpconvert,
        insert(UChar*, unsigned, unsigned), and the append overload for Vector<UChar>.

2014-03-20  Darin Adler  <darin@apple.com>

        Fix a header guard mistake (harmless but clearly wrong)
        https://bugs.webkit.org/show_bug.cgi?id=130559

        Reviewed by Andreas Kling.

        * wtf/text/StringConcatenate.h: Correct the macro name in the header guard.

2014-03-20  Hyowon Kim  <hw1008.kim@samsung.com>

        Move to using std::unique_ptr for EFL objects.
        https://bugs.webkit.org/show_bug.cgi?id=129853

        Reviewed by Gyuyoung Kim.

        EflUniquePtr is a template alias of std::unique_ptr
        with a custom deleter for each Efl Objects, which is motivated by GUniquePtr.
        This patch replaces uses of OwnPtr and PassOwnPtr for Efl objects with EflUniquePtr.

        * wtf/OwnPtrCommon.h:
        * wtf/PlatformEfl.cmake:
        * wtf/RunLoop.h:
        * wtf/efl/MainThreadEfl.cpp:
        (WTF::pipeObject):
        (WTF::initializeMainThreadPlatform):
        * wtf/efl/OwnPtrEfl.cpp: Removed.
        * wtf/efl/RunLoopEfl.cpp:
        (WTF::RunLoop::RunLoop):
        * wtf/efl/UniquePtrEfl.h: Added.
        (WTF::EflPtrDeleter::operator()):

2014-03-20  Gavin Barraclough  <barraclough@apple.com>

        Remove IdentifierTable typedef, isIdentifier()
        https://bugs.webkit.org/show_bug.cgi?id=130533

        Rubber stamped by Geoff Garen.

        Code should use AtomicStringTable, isAtomic() directly.

        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::setCurrentAtomicStringTable):
        (WTF::WTFThreadData::resetCurrentAtomicStringTable):
            - removed IdentifierTypedef.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::flagIsAtomic):
            - renamed flagIsIdentfier -> flagIsAtomic.

2014-03-20  Gavin Barraclough  <barraclough@apple.com>

        Merge AtomicString, Identifier
        https://bugs.webkit.org/show_bug.cgi?id=128624

        Reviewed by Geoff Garen.

        WTF::StringImpl currently supports two uniquing mechanism - AtomicString and
        Identifer - that is one too many.

        Remove Identifier in favour of AtomicString. Identifier had two interesting
        mechanisms that we preserve.

        (1) JSC API VMs each get their own string table, switch the string table on
            API entry/exit.
        (2) JSC caches a pointer to the string table on the VM to avoid a thread
            specific access. Adds a new AtomicString::add method to support this.

        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::WTFThreadData):
            - remove allocation of IdentifierTable.
        (WTF::WTFThreadData::~WTFThreadData):
            - remove deletion of IdentifierTable.
        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::atomicStringTable):
            - table is now switched by JSC API, return the current table.
        (WTF::WTFThreadData::currentIdentifierTable):
            - now returns the current AtomicStringTable.
        (WTF::WTFThreadData::setCurrentIdentifierTable):
            - now sets the current AtomicStringTable.
        (WTF::WTFThreadData::resetCurrentIdentifierTable):
            - now resets the AtomicStringTable.
        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::addSlowCase):
            - add without thread-specific access to access string table.
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::addWithStringTableProvider):
            - add without thread-specific access (used by JSC, string table provided by VM or ExecState).
        * wtf/text/AtomicStringTable.cpp:
        (WTF::AtomicStringTable::create):
            - renamed m_atomicStringTable -> m_defaultAtomicStringTable.
        (WTF::AtomicStringTable::~AtomicStringTable):
        (WTF::AtomicStringTable::destroy):
            - clearing of table moved from AtomicStringTable::destroy to destructor.
        * wtf/text/AtomicStringTable.h:
            - added destructor.
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
            - Identifers no longer exist; no need to remove them from IdentifierTable.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
            - removed s_hashFlagIsIdentifier.
        (WTF::StringImpl::flagIsIdentifier):
            - s_hashFlagIsIdentifier -> s_hashFlagIsAtomic.
        (WTF::StringImpl::isIdentifier):
            - now synonymous to isAtomic().
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::hashAndFlagsForEmptyUnique):
            - removed s_hashFlagIsIdentifier.

2014-03-20  Zan Dobersek  <zdobersek@igalia.com>

        Unreviewed Clang build fix for the GTK port after r165952.

        * wtf/gobject/GMainLoopSource.h: Include the <functional> header for the std::function<> objects.

2014-03-18  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Add GMainLoopSource class to wrap idle and timeout sources
        https://bugs.webkit.org/show_bug.cgi?id=130027

        Reviewed by Martin Robinson.

        GLib main loop sources like idle and timeouts are sometimes
        unconvenient to use and it's very common to forget canceling the
        source when the object is destroyed or reset the source ID in the
        callback when called. GMainLoopSource is a wrapper class to make it
        easier to handle sources and also to avoid those typical mistakes.
        It forces to create sources with a name and the user doesn't have
        to deal with the source ID anymore. The source is cancelled when
        the object is deleted or when a new source is scheduled. It uses
        std::function for callbacks so that we no longer need to use the
        "proxy" static callbacks either. We can use std::bind to use a
        function pointer or a member or even lambda functions. It also handles
        repeating sources automatically depending on whether the given
        function returns a bool or not.

        * GNUmakefile.list.am:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/RunLoop.h:
        * wtf/gobject/GMainLoopSource.cpp: Added.
        (WTF::GMainLoopSource::createAndDeleteOnDestroy):
        (WTF::GMainLoopSource::GMainLoopSource):
        (WTF::GMainLoopSource::~GMainLoopSource):
        (WTF::GMainLoopSource::cancel):
        (WTF::GMainLoopSource::reset):
        (WTF::GMainLoopSource::scheduleIdleSource):
        (WTF::GMainLoopSource::schedule):
        (WTF::GMainLoopSource::scheduleTimeoutSource):
        (WTF::GMainLoopSource::scheduleAfterDelay):
        (WTF::GMainLoopSource::voidCallback):
        (WTF::GMainLoopSource::boolCallback):
        (WTF::GMainLoopSource::socketCallback):
        (WTF::GMainLoopSource::destroy):
        (WTF::GMainLoopSource::voidSourceCallback):
        (WTF::GMainLoopSource::boolSourceCallback):
        (WTF::GMainLoopSource::socketSourceCallback):
        * wtf/gobject/GMainLoopSource.h: Added.
        (WTF::GMainLoopSource::isScheduled):
        * wtf/gtk/MainThreadGtk.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread):
        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):

2014-03-19  Gavin Barraclough  <barraclough@apple.com>

        https://bugs.webkit.org/show_bug.cgi?id=130494
        EmptyUnique strings are Identifiers/Atomic

        Reviewed by Geoff Garen.

        EmptyUnique strings should set the Identifier/Atomic flag.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::add):
            - Previously we assumed the only StringImpl that was validly allowed to claim to be
              Atomic but not be in a table was the canonical empty string. Now that EmptyUniques
              are also marked Atomic, all empty strings may pass this condition.
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
            - EmptyUnique strings are not in the Atomic/Identfiier tabels, so don't need removing.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
            - Change EmptyUnique constructor to call hashAndFlagsForEmptyUnique.
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::hashAndFlagsForEmptyUnique):
            - Allocate a sequential hash code (this should be just as good for distribution & better
              for debugging than the random value) and set flags, now including Atomic & Identifier.

2014-03-19  Gavin Barraclough  <barraclough@apple.com>

        Small cleanup of empty string
        https://bugs.webkit.org/show_bug.cgi?id=130438

        Reviewed by Anders Carlson.

        The empty string is weird becuase it is used as the impl for an AtomicString, but isAtomic()
        returns false.
        Also, we set a valid pointer for the characters pointer due to an old PCRE bug; remove this.
        Also, we currently only create one 'static' string, the empty string. Adding more might break
        assumtions, inhibit the constructor from being used to create other static strings for now.

        * wtf/text/AtomicString.h:
        (WTF::AtomicString::add):
            - update assert.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
            - Merge ConstructStaticString constructors, only allow the empty static string to be constructed.
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):
            - ConstructStaticString -> ConstructEmptyString, remove arguments, DEPRECATED_DEFINE_STATIC_LOCAL -> NeverDestroyed.

2014-03-18  Darin Adler  <darin@apple.com>

        Reduce use of deprecatedCharacters in WebCore
        https://bugs.webkit.org/show_bug.cgi?id=130318

        Reviewed by Andreas Kling.

        * wtf/text/WTFString.h: Export another overload of charactersToFloat since it's used
        in WebCore now.

        * wtf/text/cf/StringViewCF.cpp: Change so this can build on Windows.

        * WTF.vcxproj/WTF.vcxproj: Added StringViewCF.cpp.
        * WTF.vcxproj/WTF.vcxproj.filters: Added StringViewCF.cpp.

2014-03-18  Filip Pizlo  <fpizlo@apple.com>

        More FTL enabling.

        Rubber stamped by Dan Bernstein and Mark Hahnenberg.

        * wtf/Platform.h:

2014-03-17  Darin Adler  <darin@apple.com>

        Remove most uses of deprecatedCharacter in WTF
        https://bugs.webkit.org/show_bug.cgi?id=130317

        Reviewed by Andreas Kling.

        Re-landing after fixing the "80 instead of 0x80" typo in equalLatin1WithUTF8.

        * wtf/text/AtomicString.cpp:
        (WTF::HashAndUTF8CharactersTranslator::equal): Add an 8-bit code path to the
        non-ASCII path.
        (WTF::SubstringTranslator8::hash): Added.
        (WTF::SubstringTranslator8::equal): Added.
        (WTF::SubstringTranslator16::hash): Renamed class.
        (WTF::SubstringTranslator16::equal): Ditto.
        (WTF::AtomicString::add): Added an 8-bit code path to the substring case.

        * wtf/text/Base64.cpp:
        (WTF::base64Decode): Added an 8 bit code path.
        (WTF::base64URLDecode): Ditto.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::find): Fixed a case that was incorrectly using characters16
        without first using is8Bit. Need to return later to remove use of deprecatedCharacters.

        * wtf/unicode/UTF8.cpp:
        (WTF::Unicode::equalUTF16WithUTF8): Added a case for when the UTF-16 characters
        are ASCII. Also removed the aEnd argument, since the caller only calls this when the
        lengths are equal.
        (WTF::Unicode::equalLatin1WithUTF8): Added.
        * wtf/unicode/UTF8.h: Updated as described above.

2014-03-17  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r165721.
        https://bugs.webkit.org/show_bug.cgi?id=130367

        It makes the debug bots flaky (Requested by benjaminp on
        #webkit).

        Reverted changeset:

        "Remove most uses of deprecatedCharacter in WTF"
        https://bugs.webkit.org/show_bug.cgi?id=130317
        http://trac.webkit.org/changeset/165721

2014-03-17  Zan Dobersek  <zdobersek@igalia.com>

        Use RunLoop objects through references instead of pointers
        https://bugs.webkit.org/show_bug.cgi?id=130313

        Reviewed by Andreas Kling.

        Make RunLoop::current() and RunLoop::main() return a RunLoop reference instead
        of a pointer. RunLoop::Holder now uses a Ref<RunLoop> member. Timer and TimerBase
        constructors take in a RunLoop reference, with TimerBase now storing a RunLoop
        reference member instead of a pointer. Platform-specific bits of the RunLoop
        class are updated accordingly.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::Holder::Holder):
        (WTF::RunLoop::Holder::runLoop):
        (WTF::RunLoop::initializeMainRunLoop):
        (WTF::RunLoop::current):
        (WTF::RunLoop::main):
        (WTF::RunLoop::isMain):
        * wtf/RunLoop.h:
        (WTF::RunLoop::Timer::Timer):
        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::run):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::start):
        * wtf/efl/RunLoopEfl.cpp:
        (WTF::RunLoop::TimerBase::TimerBase):
        * wtf/gtk/RunLoopGtk.cpp:
        (WTF::RunLoop::run):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::start):
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):

2014-03-17  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        One more fix after r165725.

        Reviewed by Csaba Osztrogonác.

        * wtf/WTFThreadData.h:

2014-03-17  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Buildfix after r165725 for non Mac platforms.

        Reviewed by Csaba Osztrogonác.

        * wtf/WTFThreadData.h:

2014-03-17  Andreas Kling  <akling@apple.com>

        [Mac] WTFThreadData should use _pthread_getspecific_direct().
        <https://webkit.org/b/130320>

        Hack WTFThreadData to use a direct key for TLS access when available.
        This mechanism uses a dedicated segment register and is the same way
        we implement the fast path in FastMalloc.

        Reviewed by Darin Adler.

        * wtf/FastMalloc.cpp:
        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::createAndRegisterForGetspecificDirect):
        * wtf/WTFThreadData.h:
        (WTF::wtfThreadData):

2014-03-16  Darin Adler  <darin@apple.com>

        Remove most uses of deprecatedCharacter in WTF
        https://bugs.webkit.org/show_bug.cgi?id=130317

        Reviewed by Andreas Kling.

        * wtf/text/AtomicString.cpp:
        (WTF::HashAndUTF8CharactersTranslator::equal): Add an 8-bit code path to the
        non-ASCII path.
        (WTF::SubstringTranslator8::hash): Added.
        (WTF::SubstringTranslator8::equal): Added.
        (WTF::SubstringTranslator16::hash): Renamed class.
        (WTF::SubstringTranslator16::equal): Ditto.
        (WTF::AtomicString::add): Added an 8-bit code path to the substring case.

        * wtf/text/Base64.cpp:
        (WTF::base64Decode): Added an 8 bit code path.
        (WTF::base64URLDecode): Ditto.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::find): Fixed a case that was incorrectly using characters16
        without first using is8Bit. Need to return later to remove use of deprecatedCharacters.

        * wtf/unicode/UTF8.cpp:
        (WTF::Unicode::equalUTF16WithUTF8): Added a case for when the UTF-16 characters
        are ASCII. Also removed the aEnd argument, since the caller only calls this when the
        lengths are equal.
        (WTF::Unicode::equalLatin1WithUTF8): Added.
        * wtf/unicode/UTF8.h: Updated as described above.

2014-03-16  David Kilzer  <ddkilzer@apple.com>

        Follow-up: Fix undefined behavior in WTF::equal() in StringImpl.h for i386/x86_64
        <http://webkit.org/b/130283>
        <rdar://problem/16281477>

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.h:
        (WTF::loadUnaligned): Restore behavior prior to r165681 for
        compilers other than clang.

2014-03-16  Darin Adler  <darin@apple.com>

        Remove all uses of deprecatedCharacters from JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=130304

        Reviewed by Anders Carlsson.

        * wtf/dtoa.h:
        (WTF::parseDouble): Added an overload that takes a StringView.

2014-03-15  Darin Adler  <darin@apple.com>

        Remove all uses of deprecatedCharacters from WebKit2
        https://bugs.webkit.org/show_bug.cgi?id=130197

        Reviewed by Andreas Kling.

        * wtf/text/StringView.h: Added new getCharactersWithUpconvert and upconvertedCharacters
        functions. These are useful for callers that need UTF-16.

2014-03-15  Darin Adler  <darin@apple.com>

        Try to fix EFL build.

        * wtf/ThreadingPthreads.cpp: (WTF::changeThreadPriority): Code in this function
        was setting the priority of the current thread instead of the passed-in thread.
        That was triggering an unused variable warning in the compiler used to build for
        EFL. Fixed by using the thread handle instead of pthread_self.

2014-03-15  Michael Saboff  <msaboff@apple.com>

        It should be possible to adjust DFG and FTL compiler thread priorities
        https://bugs.webkit.org/show_bug.cgi?id=130288

        Reviewed by Filip Pizlo.

        Added ability to change thread priorities relative to its current priority.
        Created options to adjust the priority of the DFG and FTL compilation work thread
        pools.  For two core systems, there might be three runnable threads, the main thread,
        the DFG compilation thread and the FTL compilation thread.  With the same priority,
        the scheduler is free to schedule whatever thread it wants.  By lowering the
        compilation threads, the main thread can run.  Further tests may suggest better values
        for the new options, priorityDeltaOfDFGCompilerThreads and priorityDeltaOfFTLCompilerThreads.

        For a two-core device, this change has a net positive improvement of 1-3% across
        SunSpider, Octane, Kraken and AsmBench.

        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::changeThreadPriority):
        * wtf/ThreadingWin.cpp:
        (WTF::changeThreadPriority):

2014-03-15  David Kilzer  <ddkilzer@apple.com>

        Fix undefined behavior in WTF::equal() in StringImpl.h for i386/x86_64
        <http://webkit.org/b/130283>
        <rdar://problem/16281477>

        Reviewed by Geoff Garen.

        * wtf/text/StringImpl.h:
        (WTF::loadUnaligned): Add template method.
        (WTF::equal): Switch to using loadUnaligned<>().

2014-03-14  Mark Rowe  <mrowe@apple.com>

        Fix the production build.

        Don't rely on USE_INTERNAL_SDK being set for the Production configuration since UseInternalSDK.xcconfig won't
        be at the expected relative path when working from installed source.

        * Configurations/Base.xcconfig:

2014-03-14  Maciej Stachowiak  <mjs@apple.com>

        Replace "Apple Computer, Inc." with "Apple Inc." in copyright headers
        https://bugs.webkit.org/show_bug.cgi?id=130276
        <rdar://problem/16266927>
        
        Reviewed by Simon Fraser.

        * wtf/ASCIICType.h:
        * wtf/AVLTree.h:
        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Atomics.cpp:
        * wtf/Atomics.h:
        * wtf/AutodrainedPool.h:
        * wtf/AutodrainedPoolMac.mm:
        * wtf/BoundsCheckedPointer.h:
        * wtf/CryptographicUtilities.cpp:
        * wtf/CryptographicallyRandomNumber.h:
        * wtf/CurrentTime.h:
        * wtf/Deque.h:
        * wtf/DisallowCType.h:
        * wtf/ExportMacros.h:
        * wtf/FeatureDefines.h:
        * wtf/GetPtr.h:
        * wtf/HashIterators.h:
        * wtf/Locker.h:
        * wtf/MainThread.cpp:
        * wtf/MainThread.h:
        * wtf/MathExtras.h:
        * wtf/MediaTime.cpp:
        * wtf/MediaTime.h:
        * wtf/MessageQueue.h:
        * wtf/MetaAllocator.cpp:
        * wtf/MetaAllocator.h:
        * wtf/MetaAllocatorHandle.h:
        * wtf/OSRandomSource.cpp:
        * wtf/OSRandomSource.h:
        * wtf/Platform.h:
        * wtf/RandomNumber.cpp:
        * wtf/RandomNumber.h:
        * wtf/RandomNumberSeed.h:
        * wtf/RedBlackTree.h:
        * wtf/RunLoopTimer.h:
        * wtf/RunLoopTimerCF.cpp:
        * wtf/SchedulePair.h:
        * wtf/SchedulePairCF.cpp:
        * wtf/SchedulePairMac.mm:
        * wtf/SegmentedVector.h:
        * wtf/StackBounds.h:
        * wtf/StaticConstructors.h:
        * wtf/StringExtras.h:
        * wtf/ThreadFunctionInvocation.h:
        * wtf/ThreadSafeRefCounted.h:
        * wtf/ThreadSpecific.h:
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        * wtf/ThreadingWin.cpp:
        * wtf/WTFThreadData.cpp:
        * wtf/WTFThreadData.h:
        * wtf/efl/OwnPtrEfl.cpp:
        * wtf/mac/MainThreadMac.mm:
        * wtf/text/AtomicStringHash.h:
        * wtf/text/AtomicStringImpl.h:
        * wtf/text/Base64.h:
        * wtf/text/CString.cpp:
        * wtf/text/CString.h:
        * wtf/text/LChar.h:
        * wtf/text/cf/StringCF.cpp:
        * wtf/text/mac/StringMac.mm:
        * wtf/unicode/CharacterNames.h:
        * wtf/unicode/Collator.h:
        * wtf/unicode/CollatorDefault.cpp:
        * wtf/unicode/UTF8.cpp:
        * wtf/unicode/UTF8.h:
        * wtf/unicode/icu/CollatorICU.cpp:
        * wtf/win/MainThreadWin.cpp:

2014-03-14  Byungseon Shin  <sun.shin@lge.com>

        Incorrect Date returned between March 1, 2034 and February 28, 2100.
        https://bugs.webkit.org/show_bug.cgi?id=130123

        Reviewed by Mark Lam.

        Fix logic by using predefined Date APIs.

        * wtf/DateMath.cpp:
        (WTF::ymdhmsToSeconds):

2014-03-12  Sergio Villar Senin  <svillar@igalia.com>

        Rename DEFINE_STATIC_LOCAL to DEPRECATED_DEFINE_STATIC_LOCAL
        https://bugs.webkit.org/show_bug.cgi?id=129612

        Reviewed by Darin Adler.

        For new code use static NeverDestroyed<T> instead.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::current):
        * wtf/StdLibExtras.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::threadMapMutex):
        (WTF::threadMap):
        * wtf/efl/MainThreadEfl.cpp:
        (WTF::pipeObject):
        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):

2014-03-13  Radu Stavila  <stavila@adobe.com>

        Webkit not building on XCode 5.1 due to garbage collection no longer being supported
        https://bugs.webkit.org/show_bug.cgi?id=130087

        Reviewed by Mark Rowe.

        Disable garbage collection on macosx when not using internal SDK.

        * Configurations/Base.xcconfig:

2014-03-12  Ryuan Choi  <ryuan.choi@samsung.com>

        [EFL] Enable Parallel GC
        https://bugs.webkit.org/show_bug.cgi?id=130177

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h: Turn on ENABLE_PARALLEL_GC for the EFL build.

2014-03-12  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Disable REMOTE_INSPECTOR in earlier OS X releases
        https://bugs.webkit.org/show_bug.cgi?id=130118

        Reviewed by Timothy Hatcher.

        * wtf/FeatureDefines.h:

2014-03-11  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed gardening.

        * wtf/MathExtras.h: VS2013 provides an lrint implementation. No need to implement
        our own.

2014-03-10  Jer Noble  <jer.noble@apple.com>

        Improve WeakPtr operators.
        https://bugs.webkit.org/show_bug.cgi?id=130053

        Reviewed by Andreas Kling.

        Replace the "operator!()" with an explicit bool operator.  Add an "operator->()".

        * wtf/WeakPtr.h:
        (WTF::WeakPtr::operator bool):
        (WTF::WeakPtr::operator->):

2014-03-10  Brent Fulgham  <bfulgham@apple.com>

        [Win] Pass environment to Pre-Build, Pre-Link, and Post-Build Stages.
        https://bugs.webkit.org/show_bug.cgi?id=130023.

        Reviewed by Dean Jackson.

        * WTF.vcxproj/WTF.proj: Avoid putting trailing slashes in system paths to avoid
        escaping during later string substitution.
        * WTF.vcxproj/build-generated-files.sh: Accept environment values passed by VS.

2014-03-10  Mark Hahnenberg  <mhahnenberg@apple.com>

        Turn on GenGC on other 64-bit platforms
        https://bugs.webkit.org/show_bug.cgi?id=129258

        Reviewed by Oliver Hunt.

        * wtf/Platform.h: 

2014-03-07  peavo@outlook.com  <peavo@outlook.com>

        [Win64] Compile error after r165128.
        https://bugs.webkit.org/show_bug.cgi?id=129807

        Reviewed by Mark Lam.

        * wtf/Platform.h: MSVC does not support computed goto.
        Also enabled COMPUTED_GOTO_OPCODES when !ENABLE(LLINT_C_LOOP). This is needed because the ASM LLINT operates like COMPUTED_GOTO_OPCODES,
        and relies on the related data structures being defined to support this. On Win32, the platform does not HAVE_COMPUTED_GOTO support,
        but does want ENABLE_COMPUTED_GOTO_OPCODES because it uses the ASM LLINT.

2014-03-06  Michael Saboff  <msaboff@apple.com>

        JSC should disable the JIT when building for ARMv7k
        https://bugs.webkit.org/show_bug.cgi?id=129829

        Reviewed by Oliver Hunt.

        Added WTF_CPU_APPLE_ARMV7K CPU define.  Disabled the JITs when
        that feature define is set.

        * wtf/Platform.h:

2014-03-06  Filip Pizlo  <fpizlo@apple.com>

        Use the LLVM disassembler on ARM64 if we are enabling the FTL
        https://bugs.webkit.org/show_bug.cgi?id=129785

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:

2014-03-05  peavo@outlook.com  <peavo@outlook.com>

        [Win32][LLINT] Crash when running JSC stress tests.
        https://bugs.webkit.org/show_bug.cgi?id=129429

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h: Enable LLINT on Win32.

2014-03-04  Zan Dobersek  <zdobersek@igalia.com>

        [GTK] Build the Udis86 disassembler
        https://bugs.webkit.org/show_bug.cgi?id=129679

        Reviewed by Michael Saboff.

        * wtf/Platform.h: Also enable the Udis86 disassembler for the GTK port on Linux.

2014-03-02  Jaehun Lim  <ljaehun.lim@samsung.com>

        [EFL] Remove m_initEfl from RunLoop.
        https://bugs.webkit.org/show_bug.cgi?id=129568

        Reviewed by Gyuyoung Kim.

        We don't use m_initEfl except RunLoop constructor.

        * wtf/RunLoop.h:
        * wtf/efl/RunLoopEfl.cpp:
        (WTF::RunLoop::RunLoop):

2014-03-02  Darin Adler  <darin@apple.com>

        Cut down use of OwnPtr within WTF itself
        https://bugs.webkit.org/show_bug.cgi?id=129567

        Reviewed by Sam Weinig.

        * wtf/RefCounted.h: Removed OwnPtr includes.

        * wtf/StreamBuffer.h: Removed OwnPtr includes and switched to use
        std::make_unique and std::unique_ptr instead.

        * wtf/Threading.cpp: Removed OwnPtr includes.
        * wtf/ThreadingPthreads.cpp: Ditto.
        * wtf/Vector.h: Ditto.

2014-02-26  Gavin Barraclough  <barraclough@apple.com>

        FastMalloc should use vm_page_shift intead of PAGE_SHIFT.
        https://bugs.webkit.org/show_bug.cgi?id=129370

        Reviewed by Mark Rowe.

        "Doesn't this lead to the page map using fewer bits than it was before?
        It seems like this will cause some page addresses to no longer be
        representable in the map when using 4K pages. Am I missing something?"

        * wtf/FastMalloc.cpp:
            - bdash raises a valid point. This should make the TCMalloc_PageMap
              larger than absolutely necessary, rather than potentially too small.

2014-02-25  Gavin Barraclough  <barraclough@apple.com>

        FastMalloc should use vm_page_shift intead of PAGE_SHIFT.
        https://bugs.webkit.org/show_bug.cgi?id=129370

        Reviewed by Geoff Garen.

        Previously we used PAGE_SHIFT to initialize kPageShift.
        Since this was a constant, it could be used to calculate other
        contants used in the code. Some of these values are used in the
        definition of certain data structures (specifiying the length of
        some array members).

        Make kPageShift & dependent properties variables setup during
        initialization. Add upper bound values (K_PAGE_SHIFT_MAX,
        K_NUM_CLASSES_MAX) for use in cases where we need a constant.

        * wtf/FastMalloc.cpp:
        (WTF::InitSizeClasses):
            - initialize kPageShift, kNumClasses, kPageSize, kMaxValidPages.
        (WTF::pages):
            - added ASSERT.
        (WTF::AllocationSize):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::FreeBytes):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::init):
            - COMPILE_ASSERT -> ASSERT
        (WTF::TCMalloc_PageHeap::scavenge):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::Carve):
            - added ASSERT.
        (WTF::mergeDecommittedStates):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::IncrementalScavenge):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::ReturnedBytes):
            - added ASSERT.
        (WTF::PagesToMB):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::GrowHeap):
            - added ASSERT.
        (WTF::TCMalloc_PageHeap::ReleaseFreeList):
            - kNumClasses -> K_NUM_CLASSES_MAX
        (WTF::TCMalloc_ThreadCache::enumerateFreeObjects):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::Init):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::ReleaseToSpans):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::EvictRandomSizeClass):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::MakeCacheSpace):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::InsertRange):
            - added ASSERT.
        (WTF::TCMalloc_Central_FreeList::Populate):
            - added ASSERT.
        (WTF::TCMalloc_ThreadCache::Init):
            - added ASSERT.
        (WTF::TCMalloc_ThreadCache::Cleanup):
            - added ASSERT.
        (WTF::TCMalloc_ThreadCache::Scavenge):
            - added ASSERT.
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
            - added ASSERT.

2014-02-24  Alex Christensen  <achristensen@webkit.org>

        Disabled WebGL on WinCairo.

        Unreviewed.

        * wtf/FeatureDefines.h:
        Removed ENABLE_WEBGL definition for WinCairo port.
        WebGL has not worked on WinCairo since r163079
        and it was not compiling with a recent ANGLE update.

2014-02-24  Mark Hahnenberg  <mhahnenberg@apple.com>

        Turn GenGC on for 32-bit systems
        https://bugs.webkit.org/show_bug.cgi?id=128824

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:

2014-02-21  Benjamin Poulain  <benjamin@webkit.org>

        jsDocumentPrototypeFunctionGetElementById should not create an AtomicString for the function argument
        https://bugs.webkit.org/show_bug.cgi?id=128893

        Reviewed by Darin Adler.

        AtomicString::find() is a special case optimized for the JavaScript bindings. The method can only
        be called under specific conditions.
        The method is renamed to findStringWithHash().

        The new AtomicString::find is generic and does not require any propery on the input.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::findStringWithHash):
        (WTF::AtomicString::findSlowCase):
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::find):

2014-02-20  Csaba Osztrogonác  <ossy@webkit.org>

        Add StackStats sources to cmake and autotools build files
        https://bugs.webkit.org/show_bug.cgi?id=129103

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am:
        * wtf/CMakeLists.txt:

2014-02-20  Csaba Osztrogonác  <ossy@webkit.org>

        Get rid of redundant Platform.h includes
        https://bugs.webkit.org/show_bug.cgi?id=128817

        Reviewed by Brent Fulgham.

        * wtf/Assertions.h:
        * wtf/Atomics.h:
        * wtf/ByteOrder.h:
        * wtf/DataLog.h:
        * wtf/DisallowCType.h:
        * wtf/DynamicAnnotations.h:
        * wtf/ExportMacros.h:
        * wtf/FastMalloc.h:
        * wtf/FlipBytes.h:
        * wtf/InlineASM.h:
        * wtf/PrintStream.h:
        * wtf/ProcessID.h:
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:

2014-02-19  Jon Honeycutt  <jhoneycutt@apple.com>

        Crash in WTF::StringBuilder::append()

        https://bugs.webkit.org/show_bug.cgi?id=125817
        <rdar://problem/15671883>

        Reviewed by Oliver Hunt.

        * wtf/text/StringBuilder.cpp:
        (WTF::expandedCapacity):
        Ensure that we return a new capacity of at least 'requiredLength' in
        the case where requiredLength is large. Also, use unsigned rather than
        size_t for the parameters and the return value, as callers pass
        unsigned arguments and treat the result as an unsigned int.

2014-02-19  Anders Carlsson  <andersca@apple.com>

        Add WTF_MAKE_FAST_ALLOCATED to more classes
        https://bugs.webkit.org/show_bug.cgi?id=129064

        Reviewed by Andreas Kling.

        * wtf/Bitmap.h:

2014-02-19  Zan Dobersek  <zdobersek@igalia.com>

        Make PrintStream::print() a variadic template
        https://bugs.webkit.org/show_bug.cgi?id=126388

        Reviewed by Brent Fulgham.

        PrintStream::print() can be converted into a variadic template, printing the value
        of the first parameter and recursively calling itself until the single parameter version
        is used for printing the last value.

        * wtf/DataLog.h:
        (WTF::dataLog): Convert the function to a variadic template as well.
        * wtf/PrintStream.h:
        (WTF::PrintStream::print):
        * wtf/StringPrintStream.h:
        (WTF::toCString): Ditto.
        (WTF::toString): Ditto.

2014-02-19  Zan Dobersek  <zdobersek@igalia.com>

        Use std::swap() in HashTable::swap()
        https://bugs.webkit.org/show_bug.cgi?id=128995

        Reviewed by Brent Fulgham.

        Use std::swap() to swap the member variable values of two HashTable objects in HashTable::swap().

        * wtf/HashTable.h:
        (WTF::KeyTraits>::swap):

2014-02-19  Zan Dobersek  <zdobersek@igalia.com>

        SegmentedVector::append() should take in rvalue reference, forward it to Vector::uncheckedAppend()
        https://bugs.webkit.org/show_bug.cgi?id=128996

        Reviewed by Brent Fulgham.

        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::append): Take in an rvalue reference of the object that's to be appended and
        then forward it to Vector::uncheckedAppend(). This avoids unnecessary copies in the current situation
        where a const lvalue is accepted and passed on.

2014-02-19  Dan Bernstein  <mitz@apple.com>

        Simplify PLATFORM(MAC) && !PLATFORM(IOS) and similar expressions
        https://bugs.webkit.org/show_bug.cgi?id=129029

        Reviewed by Mark Rowe.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:
        * wtf/Threading.cpp:
        * wtf/text/cf/StringImplCF.cpp:
        (garbageCollectionEnabled):

2014-02-18  Dan Bernstein  <mitz@apple.com>

        PLATFORM(MAC) is true when building for iOS
        https://bugs.webkit.org/show_bug.cgi?id=129025

        Reviewed by Mark Rowe.

        * wtf/Platform.h: Changed to define WTF_PLATFORM_MAC only on when building for OS X (but
        still not when WTF_PLATFORM_GTK or WTF_PLATFORM_EFL are defined).

2014-02-18  Joseph Pecoraro  <pecoraro@apple.com>

        [iOS] Web Inspector: JSContext inspection crashes in isMainThread, uninitialized WebCoreWebThreadIsLockedOrDisabled
        https://bugs.webkit.org/show_bug.cgi?id=128959

        Reviewed by David Kilzer.

        When JavaScriptCore is used without WebCore on iOS (e.g. JSContext)
        the WebCoreWebThread* functions will not be initialized. Avoid
        calling the function pointer if it is uninitialized. This was
        happening with remote inspection via StringImpl::createCFString
        for implicit NSString / WTFString conversion which uses isMainThread.

        * wtf/mac/MainThreadMac.mm:
        (WTF::webThreadIsUninitializedOrLockedOrDisabled):
        (WTF::isMainThread):
        (WTF::canAccessThreadLocalDataForThread):

2014-02-17  Filip Pizlo  <fpizlo@apple.com>

        More ARM FTL glue
        https://bugs.webkit.org/show_bug.cgi?id=128948

        Reviewed by Sam Weinig.

        * wtf/Platform.h:

2014-02-17  Anders Carlsson  <andersca@apple.com>

        Remove ENABLE_GLOBAL_FASTMALLOC_NEW
        https://bugs.webkit.org/show_bug.cgi?id=127067

        Reviewed by Geoffrey Garen.

        Remove the global operator new/operator delete overrides. Having ALWAYS_INLINE operators
        like we do is really undefined behavior according to the C++ standard and we've been lucky enough
        to get away with it so far, but any code that calls operator new/operator delete inside from the C++ standard
        library (not from headers that are included) will be mismatched and potentially crash. libc++ calls
        delete in it's std::thread implementation for example.
        
        The only supported way to override operator new and operator delete globally is to not use inline
        functions, but that would mean that any application using WebKit would not be able to provide custom
        operator new/operator delete functions so we'll just reuse the already existing infrastructure consisting
        of the WTF_MAKE_FAST_ALLOCATED macro.

        * wtf/FastMalloc.cpp:
        (WTF::TCMalloc_ThreadCache::CreateCacheIfNecessary):
        * wtf/FastMalloc.h:
        * wtf/Platform.h:

2014-02-17  Ryan Lortie  <desrt@desrt.ca>

        Enable DFG_JIT on FreeBSD
        https://bugs.webkit.org/show_bug.cgi?id=128898

        Reviewed by Csaba Osztrogonác.

        * wtf/Platform.h:

2014-02-15  Filip Pizlo  <fpizlo@apple.com>

        FTL should inline polymorphic heap accesses
        https://bugs.webkit.org/show_bug.cgi?id=128795

        Reviewed by Oliver Hunt.

        * wtf/PrintStream.h:
        (WTF::PointerDumpInContext::PointerDumpInContext):
        (WTF::PointerDumpInContext::dump):
        (WTF::pointerDumpInContext):

2014-02-16  Zan Dobersek  <zdobersek@igalia.com>

        Reintroduce const qualifiers for return types of (Filter|Transform)Iterator::operator*()
        https://bugs.webkit.org/show_bug.cgi?id=126875

        The const qualifiers for the return types of FilterIterator::operator*() and TransformIterator::operator*()
        were removed in r161797 and r161802 because of compilation failures when using GCC and having an Iterator
        type that already had the const qualifier. std::remove_const is now used to appease GCC and enforce the const
        qualifier on the return type, regardless of the Iterator type and its qualifiers.

        * wtf/IteratorAdaptors.h:
        (WTF::FilterIterator::operator*):
        (WTF::TransformIterator::operator*):

2014-02-15  Filip Pizlo  <fpizlo@apple.com>

        Vector with inline capacity should work with non-PODs
        https://bugs.webkit.org/show_bug.cgi?id=128864

        Reviewed by Michael Saboff.
        
        Previously, we would copy the inline storage of a vector as if it was a bag of bits.
        This presumed that the element type was relocatable. In general this is only true for
        PODs.
        
        This patch changes this by introducing a swap operation over inline storage. This swap
        operation requires being told about the size that is in use.
        
        Deques would have required some cleverness to make this work, because the swap
        operation needs to know which subset of elements are in-use and assumes that a size is
        sufficient for this. That's not true for deques. Instead of trying to do very clever
        things, I just removed the inline capacity option from Deque. I believe that this is
        fine since there are only two users of Deque with inline capacity, and both of them
        appear to be allocated rarely enough that inline capacity probably doesn't help much.

        * wtf/Deque.h:
        (WTF::DequeIterator::DequeIterator):
        (WTF::DequeConstIterator::DequeConstIterator):
        (WTF::Deque<T>::checkValidity):
        (WTF::Deque<T>::checkIndexValidity):
        (WTF::Deque<T>::invalidateIterators):
        (WTF::Deque<T>::Deque):
        (WTF::=):
        (WTF::Deque<T>::destroyAll):
        (WTF::Deque<T>::~Deque):
        (WTF::Deque<T>::swap):
        (WTF::Deque<T>::clear):
        (WTF::Deque<T>::expandCapacityIfNeeded):
        (WTF::Deque<T>::expandCapacity):
        (WTF::Deque<T>::append):
        (WTF::Deque<T>::prepend):
        (WTF::Deque<T>::removeFirst):
        (WTF::Deque<T>::removeLast):
        (WTF::Deque<T>::remove):
        (WTF::DequeIteratorBase<T>::checkValidity):
        (WTF::DequeIteratorBase<T>::addToIteratorsList):
        (WTF::DequeIteratorBase<T>::removeFromIteratorsList):
        (WTF::DequeIteratorBase<T>::DequeIteratorBase):
        (WTF::DequeIteratorBase<T>::~DequeIteratorBase):
        (WTF::DequeIteratorBase<T>::isEqual):
        (WTF::DequeIteratorBase<T>::increment):
        (WTF::DequeIteratorBase<T>::decrement):
        (WTF::DequeIteratorBase<T>::after):
        (WTF::DequeIteratorBase<T>::before):
        * wtf/Vector.h:
        (WTF::VectorBuffer::swap):
        (WTF::VectorBuffer::swapInlineBuffer):
        (WTF::VectorBuffer::swapInlineBuffers):
        (WTF::Vector::swap):

2014-02-15  Mikhail Pozdnyakov  <mikhail.pozdnyakov@intel.com>

        Remove 'static' specifier from free inline functions in StringImpl.h
        https://bugs.webkit.org/show_bug.cgi?id=118554

        Reviewed by Darin Adler.

        At first 'static' does not bring any use here, secondly static free
        inline functions in headers is a bad practice in general as each instance
        of function defined as inline is treated as a separate function and each
        instance has its own copy of static locals and string literals.

        * wtf/text/StringImpl.h:
        (WTF::codePointCompare):
        (WTF::codePointCompare8):
        (WTF::codePointCompare16):
        (WTF::codePointCompare8To16):
        (WTF::isSpaceOrNewline):

2014-02-14  Benjamin Poulain  <bpoulain@apple.com>

        Improve the performance on mobile of FTPDirectoryDocument
        https://bugs.webkit.org/show_bug.cgi?id=128778

        Reviewed by Antti Koivisto.

        * wtf/text/WTFString.h:
        (WTF::String::endsWith): add a missing overload.

2014-02-14  Wojciech Bielawski  <w.bielawski@samsung.com>

        (try)append and insert operations don't need new operator for PODs
        https://bugs.webkit.org/show_bug.cgi?id=128185

        Reviewed by Darin Adler.

        Vector's methods use VectorCopier to copy data.
        VectorCopier for PODs exteded to be used with different types. For different types placement new copy approach is applied. For the same types memcpy is applied.

        * wtf/Vector.h:
        (WTF::OverflowHandler>::append): use VectorCopier to copy data.
        (WTF::OverflowHandler>::tryAppend): use VectorCopier to copy data.
        (WTF::OverflowHandler>::insert): use VectorCopier to copy data.

2014-02-13  Daniel Bates  <dabates@apple.com>

        Fix the iOS build after <http://trac.webkit.org/changeset/164064

        * wtf/Platform.h:

2014-02-13  Daniel Bates  <dabates@apple.com>

        [iOS] Disable HAVE_ARM_NEON_INTRINSICS

        For now, disable HAVE_ARM_NEON_INTRINSICS when building for iOS. We want
        to audit the applicable code before we enable this define.

        * wtf/Platform.h:

2014-02-11  Filip Pizlo  <fpizlo@apple.com>

        Hoist and combine array bounds checks
        https://bugs.webkit.org/show_bug.cgi?id=125433

        Reviewed by Mark Hahnenberg.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/HashMethod.h: Added.
        (WTF::HashMethod::operator()):

2014-02-13  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Code cleanup: remove gcc<4.7 guards.
        https://bugs.webkit.org/show_bug.cgi?id=128729

        Reviewed by Anders Carlsson.

        Remove GCC_VERSION_AT_LEAST guards when it checks for pre-4.7 versions,
        as WK does not compile with earlier gcc versions.

        * wtf/Assertions.cpp:
        * wtf/Platform.h:

2014-02-12  Mark Lam  <mark.lam@apple.com>

        No need to save reservedZoneSize when dropping the JSLock.
        <https://webkit.org/b/128719>

        Reviewed by Geoffrey Garen.

        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::WTFThreadData):
        * wtf/WTFThreadData.h:
        - removed unnneeded m_savedReservedZoneSize.

2014-02-11  Mark Hahnenberg  <mhahnenberg@apple.com>

        32-bit LLInt writeBarrierOnGlobalObject is wrong
        https://bugs.webkit.org/show_bug.cgi?id=128556

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h: Removed OBJECT_MARK_LOGGING from Platform.h since it already exists in FeatureDefines.h

2014-02-11  peavo@outlook.com  <peavo@outlook.com>

        [WinCairo] Compile error, deleted file in WTF.
        https://bugs.webkit.org/show_bug.cgi?id=128601

        Reviewed by Csaba Osztrogonác.

        * WTF.vcxproj/WTF.vcxproj: Removed reference to deleted file.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.

2014-02-10  Michael Saboff  <msaboff@apple.com>

        Re-enable ARM Thumb2 disassembler
        https://bugs.webkit.org/show_bug.cgi?id=128577

        Reviewed by Filip Pizlo.

        Added definition of WTF_USE_ARMV7_DISASSEMBLER back to Platform.h

        * wtf/Platform.h:

2014-02-10  Benjamin Poulain  <benjamin@webkit.org>

        Add the basic infrastructure to compile attributes matching in selectors
        https://bugs.webkit.org/show_bug.cgi?id=128484

        Reviewed by Gavin Barraclough.

        * wtf/Vector.h:
        (WTF::VectorBufferBase::bufferMemoryOffset):
        (WTF::Vector::sizeMemoryOffset):
        (WTF::Vector::dataMemoryOffset):
        Expose the memory offsets of Vector::size() and the memory buffer pointer for the JIT.

2014-02-10  Enrica Casucci  <enrica@apple.com>

        copyShortASCIIString crashes on iOS after r163793.
        https://bugs.webkit.org/show_bug.cgi?id=128548.

        Reviewed by Alexey Proskuryakov.

        Adding null check.

        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::copyShortASCIIString):

2014-02-10  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Add GUniqueOutPtr and use it instead of GOwnPtr
        https://bugs.webkit.org/show_bug.cgi?id=127554

        Reviewed by Gustavo Noronha Silva.

        GUniqueOutPtr is a simplified version of GOwnPtr for the cases
        where we need the address of the contained pointer. GUniqueOutPtr
        uses GUniquePtr to free the contained object and to release the
        container pointer. The API is very simple to make sure this is
        only used when outPtr() is needed. It can't be constructed with a
        pointer, and there's not method to set a new pointer. Another
        difference with the old GOwnPtr is that outPtr() can be used
        multiple times, because it frees any pointer previously set.

        * GNUmakefile.list.am:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/gobject/GOwnPtr.cpp: Removed.
        * wtf/gobject/GOwnPtr.h: Removed.
        * wtf/gobject/GUniquePtr.h:
        (WTF::GUniqueOutPtr::GUniqueOutPtr):
        (WTF::GUniqueOutPtr::~GUniqueOutPtr):
        (WTF::GUniqueOutPtr::outPtr):
        (WTF::GUniqueOutPtr::reset):
        (WTF::GUniqueOutPtr::release):
        (WTF::GUniqueOutPtr::operator*):
        (WTF::GUniqueOutPtr::operator->):
        (WTF::GUniqueOutPtr::get):
        (WTF::GUniqueOutPtr::operator!):
        (WTF::GUniqueOutPtr::operator UnspecifiedBoolType):

2014-02-10  Darin Adler  <darin@apple.com>

        Stop using String::deprecatedCharacters to call WTF::Collator
        https://bugs.webkit.org/show_bug.cgi?id=128517

        WTF passes ICU’s deprecated ULOC_REQUESTED_LOCALE to ucol_getLocaleByType()
        rdar://problem/15183390

        Reviewed by Alexey Proskuryakov.

        This patch fixes both bugs above by reworking WTF::Collator.

        * wtf/unicode/Collator.h: Fixed formatting. Got rid of the Collator::Result type,
        since the collator uses the same return value scheme as strcmp and as ICU; an int
        will do for the return type. Simplified the support for UCONFIG_NO_COLLATION by
        using a separate copy of the class definition. (We should check if anyone needs
        UCONFIG_NO_COLLATION support, and remove it if not.) Changed the lower-first flag
        from a separate function to a constructor argument. Changed the arguments to
        the collate function to StringView. Added a collate UTF8 function. Changed the
        m_collate data member to no longer be mutable since we no longer allocate it lazily.

        * wtf/unicode/CollatorDefault.cpp:
        (WTF::Collator::collate): Rewrote to be simpler.
        (WTF::Collator::collateUTF8): Added. Converts from UTF-8 to a String and then calls
        the collate function above.

        * wtf/unicode/icu/CollatorICU.cpp: Added a FIXME about the fact that this file
        has the wrong name and location. Since we always use ICU, there's no need to mention
        it in the file name.
        (WTF::copyASCIIString): Added.
        (WTF::copyDefaultLocale): Added.
        (WTF::resolveDefaultLocale): Added. Maps null locale to a default on Mac and iOS,
        since on those platforms ICU does not use the correct default locale when passed null.
        (WTF::localesMatch): Added.
        (WTF::Collator::Collator): Moved most of the code from createCollator here.
        Simplified it by storing the collator configuration along with the collator in globals.
        (WTF::Collator::~Collator): Moved most of the code from releaseCollator here.
        (WTF::getIndexLatin1): Added.
        (WTF::moveLatin1): Added.
        (WTF::hasNextLatin1): Added.
        (WTF::hasPreviousLatin1): Added.
        (WTF::currentLatin1): Added.
        (WTF::nextLatin1): Added.
        (WTF::previousLatin1): Added.
        (WTF::getStateLatin1): Added.
        (WTF::setStateLatin1): Added.
        (WTF::createLatin1Iterator): Added. Uses the functions above to make a UCharIterator
        that works for a WTF::StringView-style Latin-1 string.
        (WTF::createIterator): Added. Uses either createLatin1Iterator or uiter_setString to
        make a UCharIterator that works for a WTF::StringView.
        (WTF::Collator::collate): Changed to use ucol_strcollIter.
        (WTF::createIteratorUTF8): Added. Uses uiter_setUTF8.
        (WTF::Collator::collateUTF8): Added. Like collate, but for null-terminated UTF-8 strings.

2014-02-10  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Code cleanup: Remove BUILDING_ON / TARGETING definitions.
        https://bugs.webkit.org/show_bug.cgi?id=128242

        Reviewed by Brent Fulgham.

        The BUILDING_ON_* and TARGETING_* macros have not been used for a while.
        According to the FIXME: they are removed.

        * wtf/Platform.h:

2014-02-09  Anders Carlsson  <andersca@apple.com>

        Add WTF_MAKE_FAST_ALLOCATED to more classes
        https://bugs.webkit.org/show_bug.cgi?id=128506

        Reviewed by Andreas Kling.

        * wtf/Bag.h:
        * wtf/ListHashSet.h:

2014-02-08  Anders Carlsson  <andersca@apple.com>

        Stop using getCharactersWithUpconvert in JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=128457

        Reviewed by Andreas Kling.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::append):
        Add a new overload that takes a StringView.

        * wtf/text/StringView.h:
        (WTF::StringView::find):
        Add new find member function.

2014-02-08  Darin Adler  <darin@apple.com>

        Change TextIterator to use StringView, preparing to wean it from deprecatedCharacters
        https://bugs.webkit.org/show_bug.cgi?id=128233

        Reviewed by Anders Carlsson.

        * WTF.xcodeproj/project.pbxproj: Added new source files.

        * wtf/text/StringView.h: Added operator[], createCFStringWithoutCopying, and
        createNSStringWithoutCopying.
        * wtf/text/cf/StringViewCF.cpp:
        (WTF::StringView::createCFStringWithoutCopying): Added.
        * wtf/text/mac/StringViewObjC.mm:
        (WTF::StringView::createNSString): Added.
        (WTF::StringView::createNSStringWithoutCopying): Added.

2014-02-06  Andreas Kling  <akling@apple.com>

        Remove unused ENABLE(REPAINT_THROTTLING) flag.
        <https://webkit.org/b/128329>

        Reviewed by Antti Koivisto.

        * wtf/FeatureDefines.h:

2014-02-06  Filip Pizlo  <fpizlo@apple.com>

        More FTL build scaffolding
        https://bugs.webkit.org/show_bug.cgi?id=128330

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:

2014-02-06  Anders Carlsson  <andersca@apple.com>

        Use std::chrono functions in dispatchFunctionsFromMainThread()
        https://bugs.webkit.org/show_bug.cgi?id=128308

        Reviewed by Antti Koivisto.

        * wtf/MainThread.cpp:
        (WTF::dispatchFunctionsFromMainThread):

2014-02-05  Zan Dobersek  <zdobersek@igalia.com>

        Remove the WTF_COMPILER_SUPPORTS_CXX_GENERALIZED_INITIALIZERS macro
        https://bugs.webkit.org/show_bug.cgi?id=128267

        Reviewed by Andreas Kling.

        Remove the WTF_COMPILER_SUPPORTS_CXX_GENERALIZED_INITIALIZERS macro that was manually defined for compilers
        that support the C++11 initializer lists. The feature is well supported in Clang, MSVC and also GCC. It
        was actually already used unguarded in HashSet.

        * wtf/Compiler.h:
        * wtf/HashMap.h:
        (WTF::HashMap::HashMap):
        * wtf/Vector.h:
        (WTF::Vector::Vector):

2014-02-05  Andreas Kling  <akling@apple.com>

        Remove ENABLE(DIRECTORY_UPLOAD).
        <https://webkit.org/b/128275>

        Rubber-stamped by Ryosuke Niwa.

        * wtf/FeatureDefines.h:

2014-02-05  Carlos Garcia Campos  <cgarcia@igalia.com>

        HashMap can't be used with std::unique_ptr as value when it has a custom deleter
        https://bugs.webkit.org/show_bug.cgi?id=128250

        Reviewed by Darin Adler.

        The problem is that the HashMap is using a unique_ptr with the
        default deleter, so that when trying to move the unique_ptr the
        deleters don't match.

        * wtf/HashTraits.h: Add the deleter also in the template
        definitation of the parent class for the HashTraits<std::unique_ptr<T, Deleter>>

2014-02-05  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(SVG) guards
        https://bugs.webkit.org/show_bug.cgi?id=127991

        Reviewed by Sam Weinig.

        * wtf/FeatureDefines.h:

2014-02-04  Mark Lam  <mark.lam@apple.com>

        The stack limit computation does not work for Windows.
        <https://webkit.org/b/128226>

        Reviewed by Geoffrey Garen.

        The current stack limit computation assumes that the stack is allocated
        in high memory. On Windows, the stack seems to be allocated very near
        address 0, and is smaller in size than our Options::maxPerThreadStackUsage().
        This combination triggers a bug where StackBounds::recursionLimit()
        underflows and computes a limit address that is ridiculously high in memory.
        The net effect is that the Windows port thinks its out of stack space all
        the time.

        We now check for potential underflows in StackBounds and return an
        appropriate limit address.

        * wtf/StackBounds.h:
        (WTF::StackBounds::recursionLimit):

2014-02-04  Andreas Kling  <akling@apple.com>

        Remove <iframe seamless> support.
        <https://webkit.org/b/128213>

        Rubber-stamped by Antti Koivisto.

        * wtf/FeatureDefines.h:

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Store StringImpl substring backpointers as tail data
        https://bugs.webkit.org/show_bug.cgi?id=128220

        Reviewed by Geoffrey Garen.

        This lets us get rid of m_substringBuffer from the union.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::getData16SlowCase):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::createSubstringSharingImpl8):
        (WTF::StringImpl::createSubstringSharingImpl):
        (WTF::StringImpl::cost):
        (WTF::StringImpl::costDuringGC):
        (WTF::StringImpl::substringBuffer):

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Rename the substring sharing StringImpl::create variants to better indicate what they do
        https://bugs.webkit.org/show_bug.cgi?id=128214

        Reviewed by Geoffrey Garen.

        * wtf/text/AtomicString.cpp:
        (WTF::SubstringTranslator::translate):
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString):
        (WTF::StringBuilder::resize):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::createSubstringSharingImpl8):
        (WTF::StringImpl::createSubstringSharingImpl):
        * wtf/text/WTFString.cpp:
        (WTF::String::substringSharingImpl):

2014-02-04  Alexey Proskuryakov  <ap@apple.com>

        WebCrypto HMAC verification uses a non-constant-time memcmp
        https://bugs.webkit.org/show_bug.cgi?id=128198
        <rdar://problem/15976961>

        Reviewed by Oliver Hunt.

        Added a "constant time" memcmp that doesn't depend on data. The name is somewhat
        strange, as the function is of course O(length) and not constant time at all,
        but apparently this is how everyone calls such functions.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CryptographicUtilities.cpp: Added. (WTF::constantTimeMemcmp):
        * wtf/CryptographicUtilities.h: Added.

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Rename StringImpl::getCharacters to StringImpl::characters
        https://bugs.webkit.org/show_bug.cgi?id=128205

        Reviewed by Antti Koivisto.

        This lets us use StringImpl::getCharacters for the upconverting version.
        Also, change StringImpl::characters<UChar>() to call characters16() instead of deprecatedCharacters()
        and audit all call sites to make sure we weren't relying on upconversion anywhere.

        * wtf/text/AtomicString.cpp:
        (WTF::findString):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::simplifyMatchedCharactersToSpace):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::characters<LChar>):
        (WTF::StringImpl::characters<UChar>):

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Rename equalNonNull to equal and make it take const StringImpl& instead
        https://bugs.webkit.org/show_bug.cgi?id=128206

        Reviewed by Andreas Kling.

        * wtf/text/StringHash.h:
        (WTF::StringHash::equal):
        * wtf/text/StringImpl.cpp:
        (WTF::stringImplContentEqual):
        (WTF::equal):
        * wtf/text/StringImpl.h:

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Get rid of StringImpl::m_buffer
        https://bugs.webkit.org/show_bug.cgi?id=128200

        Reviewed by Michael Saboff.

        Trade one lousy hack for another by changing the CreateEmptyUnique StringImpl
        constructor to initialize its character buffer to point to m_length instead
        since it will always be null.

        Also change it to be an 8-bit string because why not.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):

2014-02-04  Anders Carlsson  <andersca@apple.com>

        Rename String::getCharacters to String::characters
        https://bugs.webkit.org/show_bug.cgi?id=128196

        Reviewed by Andreas Kling.

        This means String::characters() will end up calling either characters8() or characters16() which
        makes more logical sense. It also frees up the getCharacters name so we can use it for a new function
        that will do upconversion.
        
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendUninitializedSlow):
        * wtf/text/WTFString.h:
        (WTF::String::characters<LChar>):
        (WTF::String::characters<UChar>):

2014-02-03  Anders Carlsson  <andersca@apple.com>

        Fix Windows build.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::tailOffset):

2014-02-03  Anders Carlsson  <andersca@apple.com>

        StringImpl::tailOffset() should return the offset right after m_hashAndFlags
        https://bugs.webkit.org/show_bug.cgi?id=128141

        Reviewed by Andreas Kling.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::tailOffset):

2014-02-03  Anders Carlsson  <andersca@apple.com>

        More tail pointer consolidation
        https://bugs.webkit.org/show_bug.cgi?id=128139

        Reviewed by Andreas Kling.

        Add a new tailOffset() function and reimplement allocationSize() and tailPointer()
        in terms of it. Use tailPointer() instead of reinterpret_cast-ing this + 1.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createUninitializedInternalNonEmpty):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::requiresCopy):
        (WTF::StringImpl::allocationSize):
        (WTF::StringImpl::tailOffset):
        (WTF::StringImpl::tailPointer):

2014-02-03  Gustavo Noronha Silva  <gns@gnome.org>

        [GTK][CMake] Enable SUBPIXEL_LAYOUT in FeatureDefines.h like EFL does
        https://bugs.webkit.org/show_bug.cgi?id=128136

        Reviewed by Martin Robinson.

        * wtf/FeatureDefines.h: enable SUBPIXEL_LAYOUT if it's not set, for GTK+.

2014-02-03  Mark Hahnenberg  <mhahnenberg@apple.com>

        Turn GenGC on
        https://bugs.webkit.org/show_bug.cgi?id=128109

        Reviewed by Oliver Hunt.

        * wtf/Platform.h: Initially it will only be enabled for X86-64.

2014-02-03  Anders Carlsson  <andersca@apple.com>

        Consolidate StringImpl tail handling into two functions
        https://bugs.webkit.org/show_bug.cgi?id=128122

        Reviewed by Andreas Kling.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createUninitializedInternalNonEmpty):
        (WTF::StringImpl::reallocateInternal):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::allocationSize):
        (WTF::StringImpl::tailPointer):

2014-02-03  Darin Adler  <darin@apple.com>

        Remove Unicode.h
        https://bugs.webkit.org/show_bug.cgi?id=128106

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am: Removed files.
        * WTF.vcxproj/WTF.vcxproj: Ditto.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/unicode/ScriptCodesFromICU.h: Removed.
        * wtf/unicode/Unicode.h: Removed.
        * wtf/unicode/UnicodeMacrosFromICU.h: Removed.
        * wtf/unicode/icu/UnicodeIcu.h: Removed.
        * wtf/unicode/wchar/UnicodeWchar.cpp: Removed.
        * wtf/unicode/wchar/UnicodeWchar.h: Removed.

2014-01-25  Darin Adler  <darin@apple.com>

        Stop using Unicode.h
        https://bugs.webkit.org/show_bug.cgi?id=127633

        Reviewed by Anders Carlsson.

        * wtf/StringHasher.h:
        * wtf/dtoa.h:
        * wtf/text/ASCIIFastPath.h:
        * wtf/text/LChar.h:
        * wtf/text/StringBuffer.h:
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.cpp:
        * wtf/unicode/CharacterNames.h:
        * wtf/unicode/Collator.h:
        * wtf/unicode/UTF8.h:
        Removed includes of <wtf/unicode/Unicode.h>, adding includes of
        ICU headers and <wtf/text/LChar.h> as needed to replace it.

2014-02-02  Darin Adler  <darin@apple.com>

        Obey "delete this" comments, including deleting String::characters and friends
        https://bugs.webkit.org/show_bug.cgi?id=126865

        Reviewed by Andreas Kling.

        * wtf/text/AtomicString.h: Deleted the characters function.
        * wtf/text/StringBuilder.h: Deleted the characters function, leaving behind the
        deprecatedCharacters function.
        * wtf/text/StringImpl.h: Ditto.
        * wtf/text/WTFString.h: Ditto. Also added a constructor that takes a StringImpl&,
        helpful for later string refactoring.

2014-02-02  Dan Bernstein  <mitz@apple.com>

        Stop using PLATFORM(MAC) in WTF except where it means “OS X but not iOS”
        https://bugs.webkit.org/show_bug.cgi?id=128089

        Reviewed by Darin Adler.

        Replaced all uses of PLATFORM(MAC) that weren’t accompanied by !PLATFORM(IOS) with
        equivalent(*) tests that are more idiomatic and will not change once PLATFORM(MAC) changes to
        be false when building for iOS.

        * - One exception noted below.

        * wtf/AutodrainedPool.h: Changed PLATFORM(MAC) to USE(FOUNDATION), because NSAutoreleasePool
        is a Foundation class.

        * wtf/CurrentTime.cpp:
        (WTF::monotonicallyIncreasingTime): Changed PLATFORM(MAC) to OS(DARWIN), because Mach is
        part of the Darwin kernel, but reordered such that the EFL and GLIB implementations continue
        to take precedence regardless of the OS.

        * wtf/MainThread.cpp: Changed PLATFORM(MAC) to OS(DARWIN) && !PLATFORM(EFL) && !PLATFORM(GTK).
        * wtf/MainThread.h: Ditto.

        * wtf/Platform.h: Changed USE(CG) and USE(CA) to depend on COCOA, rather than MAC or IOS.
        Ditto for USE(CFURLCACHE), HAVE(ACCESSIBILITY), USE(PROTECTION_SPACE_AUTH_CALLBACK),
        USE(ACCESSIBILITY_CONTEXT_MENUS), USE(EXPORT_MACROS), USE(AVFOUNDATION),
        USE(REQUEST_ANIMATION_FRAME_TIMER), USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR),
        USE(CONTENT_FILTERING), USE(UNIFIED_TEXT_CHECKING), USE(MARKER_REMOVAL_UPON_EDITING),
        USE(AUDIO_SESSION), USE(IOSURFACE), and ENABLE(CSS3_TEXT_DECORATION_SKIP_INK). Changed
        PLATFORM(MAC) to OS(DARWIN) && !PLATFORM(EFL) && !PLATFORM(GTK) in controlling various
        JavaScriptCore or JavaScriptCore-dependent behaviors.

        * wtf/RunLoop.h: Changed PLATFORM(MAC) to PLATFORM(COCOA).
        * wtf/RunLoopTimerCF.cpp: Ditto.

        * wtf/SchedulePair.h: Changed PLATFORM(MAC) to USE(FOUNDATION), since it was used to guard
        usage of Foundation API.

        * wtf/Threading.cpp: Added an explicit !PLATFORM(IOS) in a guard around something needed
        only on OS X and Windows.

2014-01-31  Benjamin Poulain  <bpoulain@apple.com>

        Remove LEGACY_VIEWPORT_ADAPTION
        https://bugs.webkit.org/show_bug.cgi?id=128028

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h:

2014-01-31  Tim Horton  <timothy_horton@apple.com>

        [wk2] PlatformCALayerRemoteCustom doesn't work on iOS
        https://bugs.webkit.org/show_bug.cgi?id=128025
        <rdar://problem/15950271>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:
        Rename HAVE_LAYER_HOSTING_IN_WINDOW_SERVER to HAVE_OUT_OF_PROCESS_LAYER_HOSTING
        and make it true on iOS.

2014-01-31  Michael Saboff  <msaboff@apple.com>

        REGRESSION: Crash in sanitizeStackForVMImpl when scrolling @ lifehacker.com.au
        https://bugs.webkit.org/show_bug.cgi?id=128017

        Reviewed by Filip Pizlo.

        Moved the setting and saving of VM::stackPointerAtVMEntry and the corresponding stack limit
        to JSLock and JSLock::DropAllLocks.  The saved data is now stored in per-thread in
        WTFThreadData.

        * wtf/WTFThreadData.cpp:
        (WTF::WTFThreadData::WTFThreadData):
        * wtf/WTFThreadData.h:
        (WTF::WTFThreadData::savedStackPointerAtVMEntry):
        (WTF::WTFThreadData::setSavedStackPointerAtVMEntry):
        (WTF::WTFThreadData::savedLastStackTop):
        (WTF::WTFThreadData::setSavedLastStackTop):
        (WTF::WTFThreadData::savedReservedZoneSize):
        (WTF::WTFThreadData::setSavedReservedZoneSize):

2014-01-30  Andrei Bucur  <abucur@adobe.com>

        Remove the ACCELERATED_COMPOSITING flag
        https://bugs.webkit.org/show_bug.cgi?id=127833

        Reviewed by Antti Koivisto.

        Remove the USE(ACCELERATED_COMPOSITING) conditionals from the code base and make AC
        mandatory.

        * wtf/OwnPtrCommon.h:
        * wtf/Platform.h:
        * wtf/efl/OwnPtrEfl.cpp:
        (WTF::deleteOwnedPtr):

2014-01-28  Michael Saboff  <msaboff@apple.com>

        Merge the jsCStack branch
        https://bugs.webkit.org/show_bug.cgi?id=127763

        Reviewed by Mark Hahnenberg.

        Changes from http://svn.webkit.org/repository/webkit/branches/jsCStack
        up to changeset 162958.

2014-01-29  Csaba Osztrogonác  <ossy@webkit.org>

        Remove ENABLE(JAVASCRIPT_DEBUGGER) guards
        https://bugs.webkit.org/show_bug.cgi?id=127840

        Reviewed by Mark Lam.

        * wtf/FeatureDefines.h:

2014-01-28  Anders Carlsson  <andersca@apple.com>

        Actually turn stack stats back off.

        * wtf/StackStats.cpp:
        * wtf/StackStats.h:

2014-01-28  Anders Carlsson  <andersca@apple.com>

        Turn stack stats back off.

        * wtf/StackStats.cpp:

2014-01-28  Anders Carlsson  <andersca@apple.com>

        Use std::mutex instead of WTF::Mutex in WTF
        https://bugs.webkit.org/show_bug.cgi?id=127783

        Reviewed by Antti Koivisto.

        * wtf/CryptographicallyRandomNumber.cpp:
        * wtf/MainThread.cpp:
        (WTF::mainThreadFunctionQueueMutex):
        (WTF::functionQueue):
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        (WTF::cancelCallOnMainThread):
        * wtf/StackStats.cpp:
        (WTF::StackStats::initialize):
        (WTF::StackStats::CheckPoint::CheckPoint):
        (WTF::StackStats::CheckPoint::~CheckPoint):
        (WTF::StackStats::probe):
        (WTF::StackStats::LayoutCheckPoint::LayoutCheckPoint):
        (WTF::StackStats::LayoutCheckPoint::~LayoutCheckPoint):
        * wtf/StackStats.h:

2014-01-27  Joseph Pecoraro  <pecoraro@apple.com>

        WebCore: Enable -Wimplicit-fallthrough and add FALLTHROUGH annotation where needed
        https://bugs.webkit.org/show_bug.cgi?id=127671

        Reviewed by Ryosuke Niwa.

        * wtf/text/WTFString.h:
        (WTF::appendNumber):

2014-01-27  Jer Noble  <jer.noble@apple.com>

        [WK2] callOnMainThread() from main thread sometimes results in ASSERTs.
        https://bugs.webkit.org/show_bug.cgi?id=127370

        Reviewed by Alexey Proskuryakov.

        When WEB_THREAD is enabled, and callOnMainThread() is called from the main
        thread, if the web thread is locked, a timer is set and the passed-in function
        is called on the next run-loop. However, by that time the web thread may have
        been unlocked, and isMainThread() will no longer return true, resulting in
        an assert.

        Instead, scheduleDispatchFunctionsOnMainThread() should check isWebThread(),
        which is equivalent to isMainThread() when the WEB_THREAD is disabled, but
        will do the correct thing when WEB_THREAD is enabled.

        * wtf/mac/MainThreadMac.mm:
        (WTF::scheduleDispatchFunctionsOnMainThread):

2014-01-27  Dan Bernstein  <mitz@apple.com>

        Build fix.

        * wtf/ThreadSafeRefCounted.h: Added a necessary #include.

2014-01-25  Sam Weinig  <sam@webkit.org>

        Remove unused support for DRAGGABLE_REGION
        https://bugs.webkit.org/show_bug.cgi?id=127642

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2014-01-25  Joseph Pecoraro  <pecoraro@apple.com>

        Add FALLTHROUGH and -Wimplicit-fallthrough to warn about unannotated implicit fallthroughs in switches
        https://bugs.webkit.org/show_bug.cgi?id=127637

        Reviewed by Darin Adler.

        For information about [[clang::fallthrough]], see:
        <http://clang.llvm.org/docs/LanguageExtensions.html#the-clang-fallthrough-attribute>

        * Configurations/Base.xcconfig:
        Enable -Wimplicit-fallthrough warnings.

        * wtf/Compiler.h:
        Define FALLTHROUGH on clang and fallback to outputing nothing when unsupported.

        * wtf/dtoa/fast-dtoa.cc:
        * wtf/unicode/UTF8.cpp:
        (WTF::Unicode::convertLatin1ToUTF8):
        (WTF::Unicode::convertUTF16ToUTF8):
        (WTF::Unicode::isLegalUTF8):
        (WTF::Unicode::readUTF8Sequence):
        Explicitly annotate implicit fallthroughs with FALLTHROUGH.

2014-01-25  Darin Adler  <darin@apple.com>

        Call deprecatedCharacters instead of characters at more call sites
        https://bugs.webkit.org/show_bug.cgi?id=127631

        Reviewed by Sam Weinig.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::replace):
        * wtf/text/WTFString.h:
        (WTF::String::isAllSpecialCharacters):
        Use the new name.

2014-01-25  Darin Adler  <darin@apple.com>

        Add a new separate LChar.h header file, to be used after we remove Unicode.h
        https://bugs.webkit.org/show_bug.cgi?id=127630

        Reviewed by Sam Weinig.

        * GNUmakefile.list.am: Added the new file
        * WTF.vcxproj/WTF.vcxproj: Ditto.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.
        * wtf/text/LChar.h: Added.

2014-01-25  Darin Adler  <darin@apple.com>

        Get rid of ICU_UNICODE and WCHAR_UNICODE remnants
        https://bugs.webkit.org/show_bug.cgi?id=127623

        Reviewed by Anders Carlsson.

        * wtf/CMakeLists.txt: Removed WTF_USE_ICU_UNICODE and
        WTF_USE_WCHAR_UNICODE since they are true and false respectively.

        * wtf/Platform.h: Removed code to set WTF_USE_ICU_UNICODE.

        * wtf/unicode/Collator.h: Removed ifdefs.
        * wtf/unicode/CollatorDefault.cpp: Ditto.
        * wtf/unicode/Unicode.h: Ditto.
        * wtf/unicode/icu/CollatorICU.cpp: Ditto.

2014-01-25  Anders Carlsson  <andersca@apple.com>

        Remove atomicIncrement/atomicDecrement
        https://bugs.webkit.org/show_bug.cgi?id=127625

        Reviewed by Andreas Kling.

        Replace atomicIncrement/atomicDecrement with std::atomic.

        * wtf/Atomics.h:
        * wtf/RefCountedLeakCounter.cpp:
        (WTF::RefCountedLeakCounter::~RefCountedLeakCounter):
        (WTF::RefCountedLeakCounter::increment):
        (WTF::RefCountedLeakCounter::decrement):
        * wtf/RefCountedLeakCounter.h:
        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCountedBase::ref):
        (WTF::ThreadSafeRefCountedBase::refCount):
        (WTF::ThreadSafeRefCountedBase::derefBase):

2014-01-25  Anders Carlsson  <andersca@apple.com>

        Modernize HashTable threading code
        https://bugs.webkit.org/show_bug.cgi?id=127621

        Reviewed by Darin Adler.

        Use std::mutex and std::atomic instead of WTF threading primitives.

        * wtf/DynamicAnnotations.h:
        Include Platform.h here since this file relies on USE macros.

        * wtf/HashTable.cpp:
        (WTF::HashTableStats::recordCollisionAtCount):
        Change this to take an unsigned.

        (WTF::HashTableStats::dumpStats):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):
        (WTF::KeyTraits>::remove):
        (WTF::KeyTraits>::invalidateIterators):
        Use a single probe counter.

        (WTF::addIterator):
        (WTF::removeIterator):

2014-01-25  Darin Adler  <darin@apple.com>

        Restore alphabetical order in Compiler.h
        https://bugs.webkit.org/show_bug.cgi?id=127620

        Reviewed by Sam Weinig.

        * wtf/Compiler.h: Resorted some things into alphabetical order

2014-01-24  Brent Fulgham  <bfulgham@apple.com>

        [Win] Convert some NMake files to MSBuild project files
        https://bugs.webkit.org/show_bug.cgi?id=127579

        Reviewed by Tim Horton.

        * WTF.vcxproj/WTF.make: Removed.
        * WTF.vcxproj/WTF.proj: Added.

2014-01-24  Anders Carlsson  <andersca@apple.com>

        Get rid of monotonicallyIncreasingTimeMS and start using std::chrono instead
        https://bugs.webkit.org/show_bug.cgi?id=127571

        Reviewed by Antti Koivisto.

        * wtf/Compiler.h:
        Add a CONSTEXPR define so we can still use constexpr on compilers that don't support them (MSVC).

        * wtf/CurrentTime.h:
        Remove monotonicallyIncreasingTimeMS().

        * wtf/StdLibExtras.h:
        (std::literals::chrono_literals::operator _s):
        (std::literals::chrono_literals::operator _ms):
        Add _s and _ms literals. Once we switch over to C++14, we can drop them and just use the built-in ones.

2014-01-24  Anders Carlsson  <andersca@apple.com>

        The CXX_EXPLICIT_CONVERSIONS COMPILER_SUPPORTS macro has been removed, and all
        compilers support explicit conversions now so simply remove the #ifdef.

        * wtf/RetainPtr.h:

2014-01-24  Darin Adler  <darin@apple.com>

        Simplify Compiler.h
        https://bugs.webkit.org/show_bug.cgi?id=127491

        Reviewed by Anders Carlsson.

        * wtf/Assertions.h: Remove COMPILER_SUPPORTS(CXX_STATIC_ASSERT), since
        we now have that for all compilers that can build WebKit.

        * wtf/Compiler.h: Removed always true feature flags, including:
        COMPILER_SUPPORTS(CXX_VARIADIC_TEMPLATES), COMPILER_SUPPORTS(CXX_RVALUE_REFERENCES),
        COMPILER_SUPPORTS(CXX_DELETED_FUNCTIONS), COMPILER_SUPPORTS(CXX_NULLPTR),
        COMPILER_SUPPORTS(CXX_EXPLICIT_CONVERSIONS), COMPILER_SUPPORTS(CXX_STATIC_ASSERT),
        COMPILER_SUPPORTS(CXX_OVERRIDE_CONTROL), COMPILER_SUPPORTS(CXX_STRONG_ENUMS), and
        COMPILER_SUPPORTS(CXX_AUTO_TYPE). Sorted sections alphabetically. Separated out
        nested #if and #else into separate checks for greater readability. Removed obsolete
        check for COMPILER(RVCT). Removed unused COMPILER(GCCE) detection.

        * wtf/RefPtr.h: Remove COMPILER_SUPPORTS(CXX_NULLPTR), since we now have
        that for all compilers that can build WebKit.
        * wtf/RetainPtr.h: Ditto.

2014-01-23  Max Vujovic  <mvujovic@adobe.com>

        Remove CSS Custom Filters code and tests
        https://bugs.webkit.org/show_bug.cgi?id=127382

        Reviewed by Simon Fraser.

        * wtf/FeatureDefines.h:

2014-01-22  Brent Fulgham  <bfulgham@apple.com>

        [Win] Update project and solution files for 64-bit builds.
        https://bugs.webkit.org/show_bug.cgi?id=127457

        Reviewed by Eric Carlson.

        * WTF.vcxproj/WTF.submit.sln: Add x64 targets.
        * WTF.vcxproj/WTF.vcxproj: Update for VS2013

2014-01-22  Myles C. Maxfield  <mmaxfield@apple.com>

        Remove CSS3_TEXT_DECORATION define
        https://bugs.webkit.org/show_bug.cgi?id=127333

        Reviewed by Simon Fraser.

        This is required for unprefixing the text-decoration-* CSS properties.

        * wtf/Platform.h:

2014-01-22  Jae Hyun Park  <jae.park@company100.net>

        Remove unnecessary include in Noncopyable.h
        https://bugs.webkit.org/show_bug.cgi?id=127406

        Reviewed by Anders Carlsson.

        * wtf/Noncopyable.h: We don't need Compiler.h as of r162198.

2014-01-22  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Add GUniquePtr
        https://bugs.webkit.org/show_bug.cgi?id=127170

        Reviewed by Gustavo Noronha Silva.

        The idea is to replace GOwnPtr with a template alias of
        std:unique_ptr. Not everything can be replaced, though, because
        GOwnPtr::outPtr() doesn't seem to be possible to implement with
        unique_ptr. This smart pointer is more flexible than GOwnPtr and
        allows to transfer the ownership of the pointer using
        std::move().

        * GNUmakefile.list.am: Add new file to compilation.
        * wtf/gobject/GUniquePtr.h: Added.
        (WTF::GPtrDeleter::operator()):

2014-01-20  Anders Carlsson  <andersca@apple.com>

        Remove an unused member variable
        https://bugs.webkit.org/show_bug.cgi?id=127295

        Reviewed by Antti Koivisto.

        * wtf/MainThread.cpp:
        (WTF::FunctionWithContext::FunctionWithContext):
        (WTF::FunctionWithContext::operator == ):
        (WTF::dispatchFunctionsFromMainThread):

2014-01-20  Anders Carlsson  <andersca@apple.com>

        Remove MutexTryLocker
        https://bugs.webkit.org/show_bug.cgi?id=127294

        Reviewed by Antti Koivisto.

        MutexTryLocker has been replaced with std::unique_lock with std::try_to_lock everywhere now.

        * wtf/ThreadingPrimitives.h:

2014-01-19  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] GVariant floating references are not correctly handled by GRefPtr
        https://bugs.webkit.org/show_bug.cgi?id=127246

        Reviewed by Martin Robinson.

        GRefPtr should always use g_variant_ref_sink to deal with GVariant
        floating references. In case of full references,
        g_variant_ref_sink calls g_variant_ref, so it's safe to use it always.

        * wtf/gobject/GRefPtr.cpp:
        (WTF::refGPtr): Use g_variant_ref_sink().

2014-01-18  Anders Carlsson  <andersca@apple.com>

        Remove support for the viewsource attribute
        https://bugs.webkit.org/show_bug.cgi?id=127232

        Reviewed by Andreas Kling.

        * wtf/FeatureDefines.h:

2014-01-18  Anders Carlsson  <andersca@apple.com>

        Remove ENABLE_THREADED_HTML_PARSER defines everywhere
        https://bugs.webkit.org/show_bug.cgi?id=127225

        Reviewed by Andreas Kling.

        This concludes the removal of over 8.8 million lines of threaded parser code.

        * wtf/FeatureDefines.h:

2014-01-17  Anders Carlsson  <andersca@apple.com>

        Add a callOnMainThreadAndWait variant in SocketStreamHandle
        https://bugs.webkit.org/show_bug.cgi?id=127180

        Reviewed by Geoffrey Garen.

        Remove callOnMainThreadAndWait from WTF.

        * wtf/MainThread.cpp:
        * wtf/MainThread.h:

2014-01-17  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove workaround for compilers not supporting deleted functions
        https://bugs.webkit.org/show_bug.cgi?id=127166

        Reviewed by Andreas Kling.

        * wtf/Compiler.h:
        * wtf/Noncopyable.h:
        * wtf/PassRefPtr.h:

2014-01-16  Benjamin Poulain  <bpoulain@apple.com>

        Remove Nix from WTF
        https://bugs.webkit.org/show_bug.cgi?id=127150

        Reviewed by Alexey Proskuryakov.

        * wtf/DisallowCType.h:
        * wtf/FeatureDefines.h:
        * wtf/Platform.h:
        * wtf/PlatformNix.cmake: Removed.
        * wtf/nix: Removed.

2014-01-16  Anders Carlsson  <andersca@apple.com>

        Remove FINAL macro
        https://bugs.webkit.org/show_bug.cgi?id=127149

        Reviewed by Tim Horton.

        * wtf/Compiler.h:

2014-01-16  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove workaround for compilers not supporting explicit override control
        https://bugs.webkit.org/show_bug.cgi?id=127111

        Reviewed by Anders Carlsson.

        Now all compilers support explicit override control, this workaround can be removed.

        * wtf/Compiler.h:
        * wtf/FilePrintStream.h:
        * wtf/RunLoop.h:
        * wtf/StringPrintStream.h:

2014-01-16  Alberto Garcia  <berto@igalia.com>

        Source/WTF/wtf/Atomics.h:300: Error: bad register name `%bpl'
        https://bugs.webkit.org/show_bug.cgi?id=126985

        Reviewed by Csaba Osztrogonác.

        Use the 'q' constraint to force using a register that allows
        access to its lower byte.

        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):

2014-01-16  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Fix unnecessary checks for Clang compiler if the compiler is MSVC.
        https://bugs.webkit.org/show_bug.cgi?id=127037

        Reviewed by Csaba Osztrogonác.

        Inside the #if defined(_MSC_VER) there's no need for checking whether the compiler is not Clang.

        * wtf/Compiler.h:

2014-01-16  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Require at least GCC version 4.7
        https://bugs.webkit.org/show_bug.cgi?id=127049

        Reviewed by Csaba Osztrogonác.

        r161770 added a template alias, so the minimum GCC version is 4.7 now.

        Also fixed a typo in the error message about old MSVC version.

        * wtf/Compiler.h:

2014-01-15  Alberto Garcia  <berto@igalia.com>

        [GTK] v2.3.3 fails to build in Debian / FreeBSD
        https://bugs.webkit.org/show_bug.cgi?id=126502

        Reviewed by Mark Lam.

        * wtf/Platform.h: Add LLINT support to FreeBSD.

2014-01-15  Anders Carlsson  <andersca@apple.com>

        Get rid of RefCountedCustomAllocated
        https://bugs.webkit.org/show_bug.cgi?id=127051

        Reviewed by Antti Koivisto.

        It's not used anywhere anymore, get rid of it.

        * wtf/RefCounted.h:
        * wtf/SizeLimits.cpp:

2014-01-14  Anders Carlsson  <andersca@apple.com>

        And yet another build fix.

        * wtf/SizeLimits.cpp:

2014-01-14  Anders Carlsson  <andersca@apple.com>

        Another build fix.

        * wtf/SizeLimits.cpp:

2014-01-14  Daniel Bates  <dabates@apple.com>

        [iOS] Enable WTF_USE_UIKIT_EDITING

        * wtf/Platform.h:

2014-01-14  Daniel Bates  <dabates@apple.com>

        [iOS] Enable QuickLook
        https://bugs.webkit.org/show_bug.cgi?id=126954

        Reviewed by David Kilzer.

        * wtf/Platform.h:

2014-01-14  Anders Carlsson  <andersca@apple.com>

        Get rid of ThreadRestrictionVerifier
        https://bugs.webkit.org/show_bug.cgi?id=127004

        Reviewed by Sam Weinig.

        The ThreadRestrictionVerifier mechanism has been turned off for a while
        since it doesn't really have a good solution for objects that are passed between threads.
        Instead of having dead code in the tree, just get rid of it.
        
        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref):
        (WTF::RefCountedBase::hasOneRef):
        (WTF::RefCountedBase::refCount):
        (WTF::RefCountedBase::derefBase):
        * wtf/ThreadRestrictionVerifier.h: Removed.

2014-01-14  Benjamin Poulain  <benjamin@webkit.org>

        Enable the experimental selector code generator by default
        https://bugs.webkit.org/show_bug.cgi?id=126953

        Reviewed by Gavin Barraclough.

        * wtf/Platform.h:
        Enable CSS_SELECTOR_JIT on OS X x86_64 by default.
        The feature is not ready to ship but it is stable enough to enable
        for the bots and nightly.

2014-01-14  Brian J. Burg  <burg@cs.washington.edu>

        Add ENABLE(WEB_REPLAY) feature flag to the build system
        https://bugs.webkit.org/show_bug.cgi?id=126949

        Reviewed by Joseph Pecoraro.

        * wtf/FeatureDefines.h: for now, disable the flag by default.

2014-01-14  peavo@outlook.com  <peavo@outlook.com>

        [Win] Application name in user agent string is truncated.
        https://bugs.webkit.org/show_bug.cgi?id=126810

        Reviewed by Anders Carlsson.

        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeString): Add missing 8 bit check for last argument. 

2014-01-13  Anders Carlsson  <andersca@apple.com>

        Move another deprecated symbol to DeprecatedSymbolsUsedBySafari.mm
        https://bugs.webkit.org/show_bug.cgi?id=126909

        Reviewed by Ryosuke Niwa.

        * wtf/MainThread.cpp:
        * wtf/MainThread.h:
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        (WTF::callOnMainThread):

2014-01-13  Anders Carlsson  <andersca@apple.com>

        Fix Windows build.

        * wtf/ThreadingWin.cpp:
        (WTF::initializeThreading):

2014-01-13  Anders Carlsson  <andersca@apple.com>

        Remove AtomicallyInitializedStatic
        https://bugs.webkit.org/show_bug.cgi?id=126864

        Reviewed by Andreas Kling.

        Remove the lockAtomicallyInitializedStaticMutex and unlockAtomicallyInitializedStaticMutex functions
        everywhere except on Mac (where they unfortunately were used by Safari).
        
        On Mac, add them to a separate file which will hold functions and symbols that we would like
        to remove but that are used by Safari. Reimplement them in terms of std::call_once and std::mutex.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        * wtf/ThreadingWin.cpp:
        (WTF::initializeThreading):
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm: Added.
        (WTF::atomicallyInitializedStaticMutex):
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):

2014-01-13  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r161855.
        http://trac.webkit.org/changeset/161855
        https://bugs.webkit.org/show_bug.cgi?id=126880

        Sister commit of r161852 (Requested by kling on #webkit).

        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):

2014-01-13  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r161852.
        http://trac.webkit.org/changeset/161852
        https://bugs.webkit.org/show_bug.cgi?id=126877

        Broke ToT with system Safari (Requested by kling on #webkit).

        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):
        * wtf/ThreadingWin.cpp:
        (WTF::lockAtomicallyInitializedStaticMutex):
        (WTF::unlockAtomicallyInitializedStaticMutex):
        (WTF::initializeThreading):

2014-01-12  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r161840.
        http://trac.webkit.org/changeset/161840
        https://bugs.webkit.org/show_bug.cgi?id=126870

        Caused jsscore and layout test failures (Requested by smfr on
        #webkit).

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::replace):
        * wtf/text/WTFString.h:
        (WTF::String::isAllSpecialCharacters):

2014-01-12  Dan Bernstein  <mitz@apple.com>

        Fix an assertion failure in initializeDates() when launching Safari, which was introduced in r161852.

        Reviewed by Andy Estes.

        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading): Set isInitialized to true.

2014-01-12  Darin Adler  <darin@apple.com>

        Add PLATFORM(COCOA) and USE(FOUNDATION)
        https://bugs.webkit.org/show_bug.cgi?id=126859

        Reviewed by Anders Carlsson.

        * wtf/Platform.h: Added PLATFORM(COCOA), which for now is set at exactly the same
        times that PLATFORM(MAC) is. Added USE(FOUNDATION), which is set at the same times
        that PLATFORM(COCOA) is. Re-organize the PLATFORM(MAC) and PLATFORM(IOS) settings
        in the header so they are a bit easier to read. Put HAVE_LANGINFO_H in with the
        rest of the OS(UNIX) settings and put HAVE_READLINE in with the rest of the
        OS(DARWIN) settings. Tweak formatting a bit.

2014-01-12  Anders Carlsson  <andersca@apple.com>

        Remove AtomicallyInitializedStatic
        https://bugs.webkit.org/show_bug.cgi?id=126864

        Reviewed by Darin Adler.

        * wtf/Threading.h:
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        * wtf/ThreadingWin.cpp:
        (WTF::initializeThreading):

2014-01-12  Darin Adler  <darin@apple.com>

        Add deprecatedCharacters as a synonym for characters and convert most call sites
        https://bugs.webkit.org/show_bug.cgi?id=126858

        Reviewed by Anders Carlsson.

        * wtf/text/AtomicString.cpp:
        (WTF::HashAndUTF8CharactersTranslator::equal):
        (WTF::SubstringTranslator::hash):
        (WTF::SubstringTranslator::equal):
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::characters):
        * wtf/text/Base64.cpp:
        (WTF::base64Decode):
        (WTF::base64URLDecode):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::characters):
        (WTF::StringBuilder::deprecatedCharacters):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::getData16SlowCase):
        (WTF::StringImpl::upper):
        (WTF::StringImpl::lower):
        (WTF::StringImpl::find):
        (WTF::StringImpl::findIgnoringCase):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::characters):
        (WTF::StringImpl::deprecatedCharacters):
        (WTF::StringImpl::getCharacters<UChar>):
        (WTF::equalIgnoringNullity):
        * wtf/text/WTFString.cpp:
        (WTF::String::append):
        (WTF::String::appendInternal):
        (WTF::String::insert):
        (WTF::String::truncate):
        (WTF::String::percentage):
        * wtf/text/WTFString.h:
        (WTF::String::characters):
        (WTF::String::deprecatedCharacters):
        (WTF::String::getCharactersWithUpconvert<UChar>):
        (WTF::append):
        Use deprecatedCharacters instead of characters.

2014-01-12  Anders Carlsson  <andersca@apple.com>

        Remove the last remaining uses of AtomicallyInitializedStatic
        https://bugs.webkit.org/show_bug.cgi?id=126863

        Reviewed by Darin Adler.

        * wtf/HashTable.cpp:
        (WTF::hashTableStatsMutex):
        (WTF::HashTableStats::recordCollisionAtCount):
        (WTF::HashTableStats::dumpStats):
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::cachedCollatorMutex):
        (WTF::Collator::createCollator):
        (WTF::Collator::releaseCollator):

2014-01-12  Darin Adler  <darin@apple.com>

        Reduce use of String::characters
        https://bugs.webkit.org/show_bug.cgi?id=126854

        Reviewed by Sam Weinig.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::replace): Use characters16 here since is8Bit was already checked.
        * wtf/text/WTFString.h:
        (WTF::String::isAllSpecialCharacters): Use characters16 here since is8Bit was
        already checked. Also renamed "len" to "length".

2014-01-12  Anders Carlsson  <andersca@apple.com>

        Replace more uses of AtomicallyInitializedStatic with std::call_once
        https://bugs.webkit.org/show_bug.cgi?id=126847

        Reviewed by Sam Weinig.

        * wtf/Forward.h:
        Forward declare NeverDestroyed.

2014-01-11  Zan Dobersek  <zdobersek@igalia.com>

        Unreviewed build fix for ports using GCC after r161770.

        * wtf/IteratorAdaptors.h:
        (WTF::FilterIterator::operator*): Replicating r161797, the const qualifier for
        FilterIterator::operator*() is removed since it clashes with some iterator types
        that are also const, causing compilation failures with GCC.

2014-01-11  Anders Carlsson  <andersca@apple.com>

        Use std::call_once instead of AtomicallyInitializedStatic when creating a HTTP header set
        https://bugs.webkit.org/show_bug.cgi?id=126837

        Reviewed by Sam Weinig.

        * wtf/HashSet.h:
        (WTF::HashSet::HashSet):
        Add a HashSet constructor that takes an initializer list.

2014-01-11  Sam Weinig  <sam@webkit.org>

        Fix the EFL build.

        * wtf/IteratorAdaptors.h:
        (WTF::TransformIterator::operator*):

2014-01-11  Sam Weinig  <sam@webkit.org>

        Add support for null StringViews
        https://bugs.webkit.org/show_bug.cgi?id=126827

        Reviewed by Anders Carlsson.

        - Do some style cleanup while in the neighborhood.

        * wtf/text/StringView.h:
        (WTF::StringView::StringView):
        Add default constructor to create a null StringView.

        (WTF::StringView::isNull):
        Add isNull(), matching the semantics of String.

        (WTF::StringView::operator bool):
        Add an explicit operator bool() to allow use in if-statements. 

2014-01-11  Sam Weinig  <sam@webkit.org>

        Clean up iterator filter / iterator range code
        https://bugs.webkit.org/show_bug.cgi?id=126817

        Reviewed by Anders Carlsson.

        - Renames IteratorPair to IteratorRange.
        - Splits FilterIterator into FilterIterator (which now only filters) and
          TransformIterator (which does the transform part of the old FilterIterator).
          Move both of these to IteratorAdaptors.h

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FilterIterator.h: Removed.
        Add/remove files.

        * wtf/HashMap.h:
        (WTF::HashMap::keys):
        (WTF::HashMap::values):
        * wtf/RefPtrHashMap.h:
        Update for rename to IteratorRange. Simplify by using makeIteratorRange().

        * wtf/IteratorAdaptors.h: Copied from wtf/FilterIterator.h.
        (WTF::FilterIterator::FilterIterator):
        (WTF::FilterIterator::operator*):
        (WTF::makeFilterIterator):
        (WTF::TransformIterator::TransformIterator):
        (WTF::TransformIterator::operator++):
        (WTF::TransformIterator::operator*):
        (WTF::TransformIterator::operator==):
        (WTF::TransformIterator::operator!=):
        (WTF::makeTransformIterator):
        Split up filtering and transforming. Add makeFilterIterator() and makeTransformIterator()
        helpers.

        * wtf/IteratorPair.h: Removed.
        * wtf/IteratorRange.h: Copied from wtf/IteratorPair.h.
        (WTF::IteratorRange::IteratorRange):
        (WTF::makeIteratorRange):
        Renamed to IteratorRange and adds makeIteratorRange() helper.

2014-01-10  David Kilzer  <ddkilzer@apple.com>

        Clean up architectures in xcconfig files
        <http://webkit.org/b/126794>

        Reviewed by Andy Estes.

        * Configurations/Base.xcconfig:
        - Add new arch.

2014-01-10  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        [EFL][JSC] Enable udis86 disassembler on efl.
        https://bugs.webkit.org/show_bug.cgi?id=125502

        Reviewed by Michael Saboff.

        Enable udis86 disassembler on efl and fix build warnings.

        * wtf/Platform.h:
          Enable udis86 disassembler on EFL.

2014-01-10  Hunseop Jeong  <hs85.jeong@samsung.com>

        [EFL] Enable the DFG_JIT on ARMv7
        https://bugs.webkit.org/show_bug.cgi?id=126742

        Reviewed by Gyuyoung Kim.

        Turn on ENABLE_DFG_JIT on ARMv7 for EFL.

        * wtf/Platform.h:

2014-01-07  Mark Hahnenberg  <mhahnenberg@apple.com>

        Marking should be generational
        https://bugs.webkit.org/show_bug.cgi?id=126552

        Reviewed by Geoffrey Garen.

        * wtf/Bitmap.h:
        (WTF::WordType>::count): Added a cast that became necessary when Bitmap
        is used with smaller types than int32_t.

2014-01-09  Simon Fraser  <simon.fraser@apple.com>

        Enable async scrolling for iOS
        https://bugs.webkit.org/show_bug.cgi?id=126730

        Reviewed by Tim Horton.
        
        Turn on ENABLE_ASYNC_SCROLLING for iOS.

        * wtf/FeatureDefines.h:

2014-01-09  Anders Carlsson  <andersca@apple.com>

        Remove Blackberry and QNX bits from WTF
        https://bugs.webkit.org/show_bug.cgi?id=126726

        Reviewed by Benjamin Poulain.

        * wtf/Assertions.cpp:
        * wtf/Atomics.h:
        * wtf/CurrentTime.cpp:
        (WTF::currentCPUTime):
        * wtf/DateMath.cpp:
        * wtf/DisallowCType.h:
        * wtf/FeatureDefines.h:
        * wtf/InlineASM.h:
        * wtf/MathExtras.h:
        * wtf/NumberOfCores.cpp:
        (WTF::numberOfProcessorCores):
        * wtf/OSAllocatorPosix.cpp:
        (WTF::OSAllocator::reserveUncommitted):
        (WTF::OSAllocator::commit):
        (WTF::OSAllocator::decommit):
        * wtf/Platform.h:
        * wtf/PlatformBlackBerry.cmake: Removed.
        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize):
        * wtf/StackBounds.cpp:
        * wtf/ThreadingPthreads.cpp:
        (WTF::initializeThreading):
        (WTF::initializeCurrentThreadInternal):
        * wtf/blackberry/MainThreadBlackBerry.cpp: Removed.
        * wtf/blackberry/RunLoopBlackBerry.cpp: Removed.
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:

2014-01-09  Daniel Bates  <dabates@apple.com>

        [iOS] Upstream WebCore/platform changes
        https://bugs.webkit.org/show_bug.cgi?id=126654

        Rubber-stamped by David Kilzer.

        * wtf/MainThread.cpp:
        (WTF::canAccessThreadLocalDataForThread):
        * wtf/MainThread.h:

2014-01-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r161540.
        http://trac.webkit.org/changeset/161540
        https://bugs.webkit.org/show_bug.cgi?id=126704

        Caused assertion failures on multiple tests (Requested by ap
        on #webkit).

        * wtf/Bitmap.h:
        (WTF::WordType>::count):

2014-01-07  Mark Hahnenberg  <mhahnenberg@apple.com>

        Marking should be generational
        https://bugs.webkit.org/show_bug.cgi?id=126552

        Reviewed by Geoffrey Garen.

        * wtf/Bitmap.h:
        (WTF::WordType>::count): Added a cast that became necessary when Bitmap
        is used with smaller types than int32_t.

2014-01-08  Anders Carlsson  <andersca@apple.com>

        Add WTF::StringView and use it for grammar checking
        https://bugs.webkit.org/show_bug.cgi?id=126644

        Reviewed by Antti Koivisto.

        Add a new StringView class which is an immutable reference to either an 8-bit or a 16-bit string.

        This makes it easier to pass substrings around without having to either copy string data
        or upconvert and use UChar pointers.

        The StringView class is very loosely based on the std::string_view class which is proposed for a future version of C++,
        see http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3609.html for more details.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Forward.h:
        * wtf/text/StringView.h: Added.
        (WTF::StringView::StringView):
        (WTF::StringView::empty):
        (WTF::StringView::characters8):
        (WTF::StringView::characters16):
        (WTF::StringView::isEmpty):
        (WTF::StringView::length):
        (WTF::StringView::is8Bit):
        (WTF::StringView::substring):
        (WTF::StringView::toString):
        (WTF::StringView::toStringWithoutCopying):
        (WTF::StringView::encodedCharacters):

2014-01-07  David Farler  <dfarler@apple.com>

        [ASAN] Building with trunk clang corrupts sandbox profile with comment from Compiler.h
        https://bugs.webkit.org/show_bug.cgi?id=124532

        Reviewed by David Kilzer.

        * wtf/Compiler.h:
        Remove this quirk - it does nothing.

2014-01-06  Filip Pizlo  <fpizlo@apple.com>

        Get rid of ENABLE(VALUE_PROFILER). It's on all the time now.

        Rubber stamped by Mark Hahnenberg.

        * wtf/Platform.h:

2014-01-06  Zan Dobersek  <zdobersek@igalia.com>

        Remove using directives for the std namespace from WTF
        https://bugs.webkit.org/show_bug.cgi?id=126524

        Reviewed by Alexey Proskuryakov.

        Remove the using directives for the std namespace throughout the WTF code.
        The more explicit std:: nested name specifier should be used instead.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::createWithFloat):
        (WTF::MediaTime::createWithDouble):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::create):
        (WTF::StringImpl::lower):
        (WTF::StringImpl::upper):
        (WTF::StringImpl::foldCase):
        (WTF::StringImpl::find):
        (WTF::StringImpl::findIgnoringCase):
        (WTF::reverseFindInner):
        (WTF::StringImpl::reverseFind):
        (WTF::reverseFindIgnoringCaseInner):
        (WTF::StringImpl::reverseFindIgnoringCase):
        (WTF::StringImpl::replace):
        (WTF::StringImpl::utf8ForCharacters):
        (WTF::StringImpl::utf8ForRange):
        * wtf/text/WTFString.cpp:
        (WTF::String::append):
        (WTF::String::appendInternal):
        (WTF::String::insert):
        (WTF::String::substringSharingImpl):
        (WTF::String::fromUTF8):
        (WTF::toIntegralType):
        * wtf/win/RunLoopWin.cpp:

2014-01-03  Mark Hahnenberg  <mhahnenberg@apple.com>

        DoublyLinkedLists can't be concatenated
        https://bugs.webkit.org/show_bug.cgi?id=125976

        Reviewed by Filip Pizlo.

        * wtf/DoublyLinkedList.h:
        (WTF::DoublyLinkedList<T>::append):

2014-01-04  Zan Dobersek  <zdobersek@igalia.com>

        Explicitly use the std:: nested name specifier when using std::pair, std::make_pair
        https://bugs.webkit.org/show_bug.cgi?id=126439

        Reviewed by Andreas Kling.

        * wtf/VectorTraits.h: Stop bringing std::pair into the current scope.

2014-01-02  Gavin Barraclough  <barraclough@apple.com>

        Refactor NSActivity handling code from ChildProcess to UserActivity
        https://bugs.webkit.org/show_bug.cgi?id=126330

        Reviewed by Sam Weinig.

        UserActivity is a mechanism to express to the operating system (where appropriate)
        that a user initiated activity is taking place, and as such that resources should be
        made available to the process accordingly.

        Currently we hold a single NSActivity, at the WebKit layer. This refactoring allows us
        to hold different activity tokens for different user actions (which simplifies the
        handling, and aides debugging since the token can more accurately express the activity
        taking place), and also will allow us to avoid the layering difficulty of calling back
        up the stack to WebKit to register that an activity is taking place.

        * wtf/Platform.h:
            - added HAVE_NS_ACTIVITY.

2013-12-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r161157, r161158, r161160, r161161,
        r161163, and r161165.
        http://trac.webkit.org/changeset/161157
        http://trac.webkit.org/changeset/161158
        http://trac.webkit.org/changeset/161160
        http://trac.webkit.org/changeset/161161
        http://trac.webkit.org/changeset/161163
        http://trac.webkit.org/changeset/161165
        https://bugs.webkit.org/show_bug.cgi?id=126332

        Broke WebKit2 on Mountain Lion (Requested by ap on #webkit).

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Forward.h:
        * wtf/PlatformWin.cmake:
        * wtf/threads/BinarySemaphore.cpp: Added.
        (WTF::BinarySemaphore::BinarySemaphore):
        (WTF::BinarySemaphore::~BinarySemaphore):
        (WTF::BinarySemaphore::signal):
        (WTF::BinarySemaphore::wait):
        * wtf/threads/BinarySemaphore.h: Added.
        (WTF::BinarySemaphore::event):
        * wtf/threads/win/BinarySemaphoreWin.cpp: Added.
        (WTF::BinarySemaphore::BinarySemaphore):
        (WTF::BinarySemaphore::~BinarySemaphore):
        (WTF::BinarySemaphore::signal):
        (WTF::BinarySemaphore::wait):

2013-12-30  Anders Carlsson  <andersca@apple.com>

        Replace yield() and pauseBriefly() with std::this_thread::yield()
        https://bugs.webkit.org/show_bug.cgi?id=126105

        Reviewed by Sam Weinig.

        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::lock):
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        * wtf/ThreadingWin.cpp:

2013-12-30  Sam Weinig  <sam@webkit.org>

        Remove unnecessary non-const overload in IteratorPair
        https://bugs.webkit.org/show_bug.cgi?id=126314

        Reviewed by Anders Carlsson.

        * wtf/IteratorPair.h:

2013-12-30  Sam Weinig  <sam@webkit.org>

        Remove WTF's BinarySemaphore
        https://bugs.webkit.org/show_bug.cgi?id=126310

        Reviewed by Anders Carlsson.

        It's unused. Also remove the now empty wtf/threads directory.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Forward.h:
        * wtf/PlatformWin.cmake:
        * wtf/threads: Removed.
        * wtf/threads/BinarySemaphore.cpp: Removed.
        * wtf/threads/BinarySemaphore.h: Removed.
        * wtf/threads/win: Removed.
        * wtf/threads/win/BinarySemaphoreWin.cpp: Removed.

2013-12-30  Roger Fong  <roger_fong@apple.com>

        [Windows] Unreviewed build fix following r160959.

        * wtf/Platform.h:

2013-12-30  Anders Carlsson  <andersca@apple.com>

        Replace WTF::ThreadingOnce with std::call_once
        https://bugs.webkit.org/show_bug.cgi?id=126215

        Reviewed by Sam Weinig.

        * GNUmakefile.list.am:
        * wtf/CompilationThread.cpp:
        (WTF::initializeCompilationThreads):
        * wtf/ThreadingOnce.h: Removed.

2013-12-26  Sam Weinig  <sam@webkit.org>

        Move FilterIterator and IteratorPair to WTF and reimplement HashMap::keys() and HashMap::values() using IteratorPair
        https://bugs.webkit.org/show_bug.cgi?id=126253

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Add new files.

        * wtf/HashMap.h:
        * wtf/RefPtrHashMap.h:
        Remove the old implementation of keys() and values() and replace it with one
        that uses IteratorPair.
        
        * wtf/FilterIterator.h: Copied from Source/WebKit2/Shared/FilterIterator.h.
        * wtf/IteratorPair.h: Copied from Source/WebKit2/Shared/IteratorPair.h.

2013-12-27  Daniel Bates  <dabates@apple.com>

        [iOS] Upstream WebCore/page changes
        https://bugs.webkit.org/show_bug.cgi?id=126180

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h: Define ENABLE_IOS_TOUCH_EVENTS to be enabled by default
        when building iOS with ENABLE(TOUCH_EVENTS).

2013-12-25  Thiago de Barros Lacerda  <thiago.lacerda@openbossa.org>

        [Nix] Building with DRAG_SUPPORT enabled
        https://bugs.webkit.org/show_bug.cgi?id=126233

        Reviewed by Daniel Bates.

        * wtf/nix/FeatureDefinesNix.h:

2013-12-24  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r160959.
        http://trac.webkit.org/changeset/160959
        https://bugs.webkit.org/show_bug.cgi?id=126222

        Caused Windows build to fail (Requested by rfong on #webkit).

        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::lock):
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:
        (WTF::pauseBriefly):
        * wtf/ThreadingPthreads.cpp:
        (WTF::yield):
        * wtf/ThreadingWin.cpp:
        (WTF::yield):

2013-12-23  Benjamin Poulain  <bpoulain@apple.com>

        Fix the build after r161031

        I enabled ENABLE_CSS_SELECTOR_JIT by accident.

        * wtf/Platform.h:

2013-12-23  Zan Dobersek  <zdobersek@igalia.com>

        [GTK] Clean up compiler optimizations flags for libWTF, libJSC
        https://bugs.webkit.org/show_bug.cgi?id=126157

        Reviewed by Gustavo Noronha Silva.

        * GNUmakefile.am: Remove the -fstrict-aliasing and -O3 compiler flags for libWTF.la. -O3 gets
        overridden by -O2 that's listed in CXXFLAGS (or -O0 in case of debug builds) and -fstrict-aliasing
        is enabled when -O2 is used (and shouldn't be enabled in debug builds anyway).

2013-12-20  Anders Carlsson  <andersca@apple.com>

        Replace yield() and pauseBriefly() with std::this_thread::yield()
        https://bugs.webkit.org/show_bug.cgi?id=126105

        Reviewed by Sam Weinig.

        * wtf/ByteSpinLock.h:
        (WTF::ByteSpinLock::lock):
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        * wtf/ThreadingWin.cpp:

2013-12-20  Anders Carlsson  <andersca@apple.com>

        Speed up case folding for 8-bit strings
        https://bugs.webkit.org/show_bug.cgi?id=126098

        Reviewed by Geoffrey Garen.

        Add a case folding lookup table for 8-bit strings and use it instead of calling down to u_foldCase.
        On a simple microbenchmark using a lookup table is about 15x faster.

        * wtf/text/StringHash.h:
        (WTF::CaseFoldingHash::foldCase):
        * wtf/text/StringImpl.cpp:
        (WTF::equalIgnoringCase):
        * wtf/text/StringImpl.h:

2013-12-20  Myles C. Maxfield  <mmaxfield@apple.com>

        Faster implementation of text-decoration-skip: ink
        https://bugs.webkit.org/show_bug.cgi?id=125718

        Reviewed by Simon Fraser.

        This creates a new preprocessor define, CSS3_TEXT_DECORATION_SKIP_INK,
        which enables the use of the text-decoration-skip: ink CSS value.
        Creating this new value simplifies the logic about when to enable the
        codepath for this CSS value.

        * wtf/Platform.h:

2013-12-20  Simon Fraser  <simon.fraser@apple.com>

        Change "threaded scrolling" terminology to "asynchronous scrolling"
        https://bugs.webkit.org/show_bug.cgi?id=126094

        Reviewed by Tim Horton.

        Rename ENABLE_THREADED_SCROLLING to ENABLE_ASYNC_SCROLLING.

        * wtf/FeatureDefines.h:

2013-12-20  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Build fails in debug mode after r160834.
        https://bugs.webkit.org/show_bug.cgi?id=126059

        Reviewed by Csaba Osztrogonác.

        Debug mode build failed due to comparing signed and unsigned in
        ASSERT(). Now both values are unsigned.

        * wtf/dtoa/double-conversion.cc:

2013-12-19  Alex Christensen  <achristensen@webkit.org>

        Final preparations for GStreamer on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=125958

        Reviewed by Benjamin Poulain.

        * WTF.vcxproj/WTFDebugWinCairo.props:
        * WTF.vcxproj/WTFReleaseWinCairo.props:
        Include WinCairo.props.
        * wtf/Platform.h:
        Use GLib and GStreamer on WinCairo with video.

2013-12-18  Daniel Bates  <dabates@apple.com>

        WTF, JavaScriptCore fails to build with trunk clang: operators new, new[],
        delete, delete[] cannot be declared inline
        https://bugs.webkit.org/show_bug.cgi?id=124186
        <rdar://problem/15644039>

        Reviewed by Geoffrey Garen and Anders Carlsson.

        Following <http://llvm.org/viewvc/llvm-project?view=revision&revision=193044>
        (http://llvm.org/bugs/show_bug.cgi?id=17591>), Clang emits warnings when
        operator new, delete are inlined. Such definitions cannot be inline per
        replacement.functions (17.6.4.6/3) of the C++ standard. For now,
        disable these warnings instead of exporting these functions.

        * wtf/FastMalloc.h:

2013-12-19  Hugo Parente Lima  <hugo.lima@openbossa.org>

        WTF fails to compile with gcc 4.8.2 and -Werror=array-bounds
        https://bugs.webkit.org/show_bug.cgi?id=125936

        Reviewed by Anders Carlsson.

        * wtf/dtoa/double-conversion.cc: Use a unsigned instead of int on buffer_pos type.

2013-12-19  Peter Szanka  <h868064@stud.u-szeged.hu>

        Delete RVCT related code parts.
        https://bugs.webkit.org/show_bug.cgi?id=125626

        Reviewed by Csaba Osztrogonác.

        * wtf/Compiler.h: follow-up fix for r160648, remove an unnecessary comment.

2013-12-18  Alex Christensen  <achristensen@webkit.org>

        [WinCairo] Preparation for GStreamer on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=125946

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.vcxproj:
        Use new GStreamer property sheets for WinCairo.

2013-12-18  Mark Hahnenberg  <mhahnenberg@apple.com>

        DFG should have a separate StoreBarrier node
        https://bugs.webkit.org/show_bug.cgi?id=125530

        Reviewed by Filip Pizlo.

        * wtf/Platform.h: Added an #define for ENABLE(GGC) which will be used for landing things related to GenGC.

2013-12-16  Daniel Bates  <dabates@apple.com>

        [iOS] Upstream WebCore/html changes
        https://bugs.webkit.org/show_bug.cgi?id=125765

        Reviewed by Darin Adler.

        Defined ENABLE_IOS_AUTOCORRECT_AND_AUTOCAPITALIZE, enabled by default on iOS.

        * wtf/FeatureDefines.h:

2013-12-17  Alex Christensen  <achristensen@webkit.org>

        Compile fix for WebGL on Windows without GRAPHICS_SURFACE.
        https://bugs.webkit.org/show_bug.cgi?id=125867

        Reviewed by Martin Robinson.

        * wtf/FeatureDefines.h:
        Removed unused ENABLE_GLIB_SUPPORT macro.
        * wtf/Platform.h:
        Don't use GRAPHICS_SURFACE for WebGL on Windows.

2013-12-17  Alex Christensen  <achristensen@webkit.org>

        [Win] Fixed linker error with GStreamer.
        https://bugs.webkit.org/show_bug.cgi?id=124861

        Reviewed by Martin Robinson.

        * wtf/gobject/GOwnPtr.cpp:
        (WTF::GError):
        * wtf/gobject/GOwnPtr.h:
        Added WTF_EXPORT_PRIVATE to freeOwnedGPtr<GError> declaration and definition.

2013-12-17  Benjamin Poulain  <benjamin@webkit.org>

        Add a simple register allocator to WebCore for x86_64
        https://bugs.webkit.org/show_bug.cgi?id=125771

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h: Add a new flag "CSS_SELECTOR_JIT" to guard
        an experimental JIT compiler in WebCore.

2013-12-16  Anders Carlsson  <andersca@apple.com>

        Remove EnumClass.h from WTF
        https://bugs.webkit.org/show_bug.cgi?id=125820

        Reviewed by Darin Adler.

        All compilers we build on now support real strongly typed enums, so we can remove the ENUM_CLASS version.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CheckedArithmetic.h:
        * wtf/EnumClass.h: Removed.

2013-12-16  Brent Fulgham  <bfulgham@apple.com>

        [Win] Remove dead code after conversion to VS2013
        https://bugs.webkit.org/show_bug.cgi?id=125795

        Reviewed by Darin Adler.

        * wtf/Assertions.h: Include <inttypes.h> now that it exists.
        * wtf/Compiler.h: Update compiler checks for VS2013, and
        enable support for NEVER_INLINE
        * wtf/HashFunctions.h:
        (WTF::PtrHash::hash): Remove compiler workaround.
        * wtf/MathExtras.h: Remove C99 functions that are now supplied
        by the MS runtime library.
        * wtf/Platform.h: Remove old MSVC support flags.
        * wtf/StdLibExtras.h: Remove old MSVC workaround code.

2013-12-16  Alex Christensen  <achristensen@webkit.org>

        Fixed Win64 build on VS2013.
        https://bugs.webkit.org/show_bug.cgi?id=125753

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.vcxproj:
        Added correct PlatformToolset for 64-bit builds.

2013-12-16  Peter Szanka  <h868064@stud.u-szeged.hu>

        Delete RVCT related code parts.
        https://bugs.webkit.org/show_bug.cgi?id=125626

        Reviewed by Darin Adler.

        * wtf/Assertions.h:
        * wtf/Compiler.h:
        * wtf/FastMalloc.h:
        * wtf/Platform.h:

2013-12-13  Brent Fulgham  <bfulgham@apple.com>

        [Win] Remove Pre-VS2013 support code.
        https://bugs.webkit.org/show_bug.cgi?id=125693

        Reviewed by Darin Adler.

        * wtf/StringPrintStream.cpp:
        (WTF::StringPrintStream::vprintf): Use va_copy, like a civilized person.

2013-12-12  Darin Adler  <darin@apple.com>

        Incorrect handling of non-ASCII characters in WTF::base64DecodeInternal
        https://bugs.webkit.org/show_bug.cgi?id=125658

        Reviewed by Alexey Proskuryakov.

        * wtf/text/Base64.cpp:
        (WTF::base64EncodeInternal): Use a reference to an array instead of a pointer
        for the table argument type so we check the size of the array at the call site.
        (WTF::base64DecodeInternal): Ditto. Also added an bounds check before using the
        table so we don't load some random value for non-ASCII characters.

2013-12-13  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed build fix after r160548

        * WTF.vcxproj/WTFGenerated.vcxproj: Specify that we are using
        the vs12_xp target for Makefile-based projects.

2013-12-13  Anders Carlsson  <andersca@apple.com>

        Require variadic templates to build WebKit
        https://bugs.webkit.org/show_bug.cgi?id=125701

        Reviewed by Andreas Kling.

        * wtf/Compiler.h:
        Add an #error if variadic templates are disabled.

        * wtf/NeverDestroyed.h:
        * wtf/PassRef.h:
        * wtf/StdLibExtras.h:
        Remove a bunch of COMPILER_SUPPORTS(CXX_VARIADIC_TEMPLATES) #ifdefs.

2013-12-13  Peter Szanka  <h868064@stud.u-szeged.hu>

        Delete INTEL C compiler related code parts.
        https://bugs.webkit.org/show_bug.cgi?id=125625

        Reviewed by Darin Adler.

        * wtf/Assertions.h:
        * wtf/Compiler.h:

2013-12-13  Brent Fulgham  <bfulgham@apple.com>

        [Win] Switch WebKit solution to Visual Studio 2013
        https://bugs.webkit.org/show_bug.cgi?id=125192

        Reviewed by Anders Carlsson.

        * WTF.vcxproj/WTF.vcxproj: Update for VS2013
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto

2013-12-12  Brady Eidson  <beidson@apple.com>

        DatabaseProcess IndexedDB: Establish a metadata backing store on disk
        https://bugs.webkit.org/show_bug.cgi?id=125258

        Reviewed by Alexey Proskuryakov, Anders Carlsson, and Tim Horton.

        * wtf/text/WTFString.h: Export toUInt64Strict().

2013-12-12  Sam Weinig  <sam@webkit.org>

        Replace uses of WTF::BitArray with std::bitset
        https://bugs.webkit.org/show_bug.cgi?id=125642

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BitArray.h: Removed.
        * wtf/CMakeLists.txt:

2013-12-11  David Kilzer  <ddkilzer@apple.com>

        Define m_hasBadParent in InlineBox if defined(ADDRESS_SANITIZER)
        <http://webkit.org/b/125329>

        Reviewed by Darin Adler.

        * wtf/Assertions.h: Define macro
        ASSERT_WITH_SECURITY_IMPLICATION_DISABLED based on whether
        ASSERT_WITH_SECURITY_IMPLICATION() is enabled.

2013-12-11  Brendan Long  <b.long@cablelabs.com>

        Type punning error in MD5.cpp
        https://bugs.webkit.org/show_bug.cgi?id=125412

        Reviewed by Darin Adler.

        * wtf/MD5.cpp:
        (WTF::toLittleEndian): Renamed, and use memcpy instead of casting.
        (WTF::MD5::addBytes): Renamed reverseBytes to toLittleEndian.
        (WTF::MD5::checksum): Same, and use memcpy instead of casting to prevent type punning error.

2013-12-11  Laszlo Vidacs  <lac@inf.u-szeged.hu>

        Store SHA1 hash in std::array
        https://bugs.webkit.org/show_bug.cgi?id=125446

        Reviewed by Darin Adler.

        Change Vector to std::array and use typedef.

        * wtf/SHA1.cpp:
        (WTF::SHA1::computeHash):
        (WTF::SHA1::hexDigest):
        (WTF::SHA1::computeHexDigest):
        * wtf/SHA1.h:

2013-12-11  Oliver Hunt  <oliver@apple.com>

        Give Unique StringImpls a meaningful data pointer
        https://bugs.webkit.org/show_bug.cgi?id=125598

        Reviewed by Michael Saboff.

        Found by code inspection.  If there is a collision in an Identifier
        table when comparing to a string literal we attempt to use the data
        pointer (essentially this ends up being a null termination check).

        Previously unique pointers just used the literal 1 as the data address
        but this obviously fails when dereferenced.  Instead we now make the
        data pointer point to the location of the buffer pointer itself.  As
        the buffer pointer is initialised to 0, this satisfies the requirement
        that the 0-length unique string is null terminated.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):

2013-12-10  Anders Carlsson  <andersca@apple.com>

        Add a HashMap constructor that takes an initializer list
        https://bugs.webkit.org/show_bug.cgi?id=125551

        Reviewed by Dan Bernstein.

        * wtf/HashMap.h:
        (WTF::HashMap::HashMap):

2013-12-10  Laszlo Vidacs  <lac@inf.u-szeged.hu>

        Use std::array when computing MD5 checksum
        https://bugs.webkit.org/show_bug.cgi?id=125509

        Reviewed by Anders Carlsson.

        Added MD5::Digest type and MD5::hashSize for computing MD5 checksum.

        * wtf/MD5.cpp:
        (WTF::MD5::checksum):
        * wtf/MD5.h:

2013-12-10  Martin Robinson  <mrobinson@igalia.com>

        Various fixes for the CMake GTK+ build

        Reviewed by Gustavo Noronha.

        * wtf/PlatformGTK.cmake: Add Zlib library to the WTF build.

2013-12-09  Sam Weinig  <sam@webkit.org>

        Remove FixedArray
        https://bugs.webkit.org/show_bug.cgi?id=125478

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FixedArray.h: Removed.

2013-12-09  Sam Weinig  <sam@webkit.org>

        Replace use of WTF::FixedArray with std::array
        https://bugs.webkit.org/show_bug.cgi?id=125475

        Reviewed by Anders Carlsson.

        * wtf/AVLTree.h:
        * wtf/Bitmap.h:
        * wtf/SixCharacterHash.cpp:
        (WTF::integerToSixCharacterHashString):
        * wtf/SixCharacterHash.h:

2013-12-06  Roger Fong <roger_fong@apple.com> and Brent Fulgham  <bfulgham@apple.com>

        [Win] Support compiling with VS2013
        https://bugs.webkit.org/show_bug.cgi?id=125353

        Reviewed by Anders Carlsson.

        * wtf/Compiler.h: Show proper features for VS2012 and VS2013.
        * wtf/MathExtras.h: Don't implement common C99 routines when
        they are available through the runtime libraries.
        * wtf/RetainPtr.h:
        (WTF::RetainPtr::operator bool): Added.
        * wtf/StdLibExtras.h: Use Microsoft's version of make_unique
        when it exists.

2013-12-06  Laszlo Vidacs  <lac@inf.u-szeged.hu>

        Define SHA1 hash size in SHA1.h and use it at various places.
        https://bugs.webkit.org/show_bug.cgi?id=125345

        Reviewed by Darin Adler.

        Use SHA1::hashSize instead of local variables.

        * wtf/SHA1.h: define SHA1 hash size

2013-12-05  Iain Lane  <iain.lane@canonical.com>

        Remove USE(LOCKFREE_THREADSAFEREFCOUNTED) from Atomics.cpp since it is
        no longer defined.
        https://bugs.webkit.org/show_bug.cgi?id=124502

        Reviewed by Anders Carlsson.

        * wtf/Atomics.cpp:

2013-12-04  Ryosuke Niwa  <rniwa@webkit.org>

        Enable HTMLTemplateElement by default
        https://bugs.webkit.org/show_bug.cgi?id=123851

        Reviewed by Antti Koivisto.

        * wtf/FeatureDefines.h:

2013-12-04  Dan Bernstein  <mitz@apple.com>

        Replace USE(SECURITY_FRAMEWORK) with finer-grained defines
        https://bugs.webkit.org/show_bug.cgi?id=125242

        Reviewed by Sam Weinig.

        * wtf/Platform.h: Removed definitions of WTF_USE_SECURITY_FRAMEWORK, and defined
        HAVE_SEC_IDENTITY and HAVE_SEC_KEYCHAIN.

2013-12-03  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Push Remote Inspector debugging connection management into JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=124613

        Reviewed by Timothy Hatcher.

        * wtf/ios/WebCoreThread.cpp:
        * wtf/ios/WebCoreThread.h:
        Expose WebThreadRun/WebThreadRunSync iOS methods defined in WebCore through
        WTF so that JavaScriptCore can use it. Another such method already existed.

2013-12-03  Mark Lam  <mark.lam@apple.com>

        testapi test crashes on Windows in WTF::Vector<wchar_t,64,WTF::UnsafeVectorOverflow>::size().
        https://bugs.webkit.org/show_bug.cgi?id=121972.

        Reviewed by Brent Fulgham.

        * wtf/OSAllocatorWin.cpp:
        (WTF::OSAllocator::decommit):
        (WTF::OSAllocator::releaseDecommitted):
        - Added a check to ensure that the bytes to decommit / release is not 0.
          On Windows, a 0 length passed to VirtualFree() has a special meaning,
          and it's not "decommit / release nothing" as one would expect. Adding
          this check makes OSAllocatorWin consistent with OSAllocatorPosix for
          these 2 functions.

2013-12-02  Mark Lam  <mark.lam@apple.com>

        Build failure when disabling JIT, YARR_JIT, and ASSEMBLER.
        https://bugs.webkit.org/show_bug.cgi?id=123809.

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:
        - Ensure that the ASSEMBLER is enabled when the DISASSEMBLER is enabled.

2013-11-30  peavo@outlook.com  <peavo@outlook.com>

        [Win] Some JavaScript date tests are failing.
        https://bugs.webkit.org/show_bug.cgi?id=124946

        Reviewed by Brent Fulgham.

        Use native Win32 api functions to compute Daylight saving time offset.

        * wtf/DateMath.cpp:
        (WTF::UnixTimeToFileTime): Added method to calculate Win32 specific struct FILETIME from time_t value.
        (WTF::calculateDSTOffset): Use native Win32 api functions to compute Daylight saving time offset.

2013-11-28  Thiago de Barros Lacerda  <thiago.lacerda@openbossa.org>

        Nix Upstream: Updating Nix WTF files
        https://bugs.webkit.org/show_bug.cgi?id=124980

        Reviewed by Csaba Osztrogonác.

        Just to sync our private repo files and the trunk, as part of the upstream process.

        * wtf/DisallowCType.h:
        * wtf/PlatformNix.cmake:
        * wtf/nix/FeatureDefinesNix.h:
        * wtf/nix/PlatformNix.h:
        * wtf/nix/RunLoopNix.cpp: Added.

2013-11-28  Antti Koivisto  <antti@apple.com>

        Remove feature: CSS variables
        https://bugs.webkit.org/show_bug.cgi?id=114119

        Reviewed by Andreas Kling.

        * wtf/FeatureDefines.h:

2013-11-26  Filip Pizlo  <fpizlo@apple.com>

        Do bytecode validation as part of testing
        https://bugs.webkit.org/show_bug.cgi?id=124913

        Reviewed by Oliver Hunt.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FastBitVector.cpp: Added.
        (WTF::FastBitVector::dump):
        * wtf/FastBitVector.h:
        (WTF::FastBitVector::resize):
        (WTF::FastBitVector::bitCount):
        (WTF::FastBitVector::arrayLength):

2013-11-27  Tamas Gergely  <tgergely.u-szeged@partner.samsung.com>

        Remove Sparc specific code.
        https://bugs.webkit.org/show_bug.cgi?id=124941

        Reviewed by Michael Saboff.

        Sparc is not supported, remove leftover code.

        * wtf/Platform.h:
        * wtf/dtoa/utils.h:

2013-11-26  Marcelo Lira  <marcelo.lira@openbossa.org>

        Nix upstreaming - Adding build files and supporting scripts
        https://bugs.webkit.org/show_bug.cgi?id=118367

        Reviewed by Ryosuke Niwa.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:
        * wtf/PlatformNix.cmake: Added.

2013-11-26  Drew Yao  <ayao@apple.com>

        ASSERT_WITH_SECURITY_IMPLICATION should crash in a distinct way.
        https://bugs.webkit.org/show_bug.cgi?id=124757

        Change ASSERT_WITH_SECURITY_IMPLICATION to access a different address from CRASH()
        in order to help screen fuzzing bugs.

        Reviewed by Brent Fulgham.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2013-11-24  Tim Horton  <timothy_horton@apple.com>

        Upstream USE(IOSURFACE) from the iOS port
        https://bugs.webkit.org/show_bug.cgi?id=124814

        Reviewed by Sam Weinig.

        Some code guarded by USE(IOSURFACE) was recently upstreamed,
        but not the definition of WTF_USE_IOSURFACE itself.

        * wtf/Platform.h:

2013-11-23  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        [GStreamer] Remove 0.10 codepath
        https://bugs.webkit.org/show_bug.cgi?id=124534

        Reviewed by Philippe Normand.

        * wtf/Platform.h: Removed macro for GStreamer 1.0 as it is the
        only codepath now.

2013-11-21  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove ENABLE_WORKERS
        https://bugs.webkit.org/show_bug.cgi?id=105784

        Reviewed by Darin Adler.

        * wtf/FeatureDefines.h:
        * wtf/nix/FeatureDefinesNix.h:

2013-11-21  Mark Rowe  <mrowe@apple.com>

        <https://webkit.org/b/124701> Fix an error in a few Xcode configuration setting files.

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:

2013-11-20  Mark Lam  <mark.lam@apple.com>

        Introducing VMEntryScope to update the VM stack limit.
        https://bugs.webkit.org/show_bug.cgi?id=124634.

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:
        * wtf/StackBounds.h:
        (WTF::StackBounds::StackBounds):

2013-11-18  Filip Pizlo  <fpizlo@apple.com>

        Allow the FTL debug dumps to include the new size field
        https://bugs.webkit.org/show_bug.cgi?id=124479

        Reviewed by Mark Hahnenberg.

        * wtf/PrintStream.cpp:
        (WTF::printInternal):
        * wtf/PrintStream.h:

2013-11-17  Jer Noble  <jer.noble@apple.com>

        [WTF] Media time should not have a constructor which accepts a single int or float.
        https://bugs.webkit.org/show_bug.cgi?id=124470

        Having a constructor taking a single number value, as it's very easy to accidentially mis-
        initialize a MediaTime with a double (automatically casted to a int64_t).

        Reviewed by Eric Carlson.

        * wtf/MediaTime.h:

2013-11-18  Csaba Osztrogonác  <ossy@webkit.org>

        URTBF after r159432 to make WinCairo build happy.

        * wtf/text/WTFString.h:

2013-11-18  Carlos Garcia Campos  <cgarcia@igalia.com>

        Unreviewed. Fix make distcheck.

        * GNUmakefile.list.am: Add missing header file.

2013-11-16  Alexey Proskuryakov  <ap@apple.com>

        Use uint8_t vectors for WebCrypto data
        https://bugs.webkit.org/show_bug.cgi?id=124466

        Reviewed by Sam Weinig.

        Binary data can be UTF-8, in which case "char*" is idiomatic, or it can be arbitrary
        binary data, in which case "uint8_t*" is more common.

        Changed encode functions that took "const char *" to "const void*", and decode
        functions that took "Vector<char>&" now take an adapter class.

        The adapter relies on Vector<char> and Vector<uint8_t> classes having an identical layout.

        * wtf/text/Base64.cpp:
        (WTF::base64Encode):
        (WTF::base64URLEncode):
        (WTF::base64DecodeInternal):
        (WTF::base64Decode):
        (WTF::base64URLDecode):
        * wtf/text/Base64.h:
        (WTF::SignedOrUnsignedCharVectorAdapter):
        (WTF::ConstSignedOrUnsignedCharVectorAdapter):
        (WTF::base64Encode):
        (WTF::base64URLEncode):

2013-11-15  Alexey Proskuryakov  <ap@apple.com>

        Support exporting symmetric keys as JWK
        https://bugs.webkit.org/show_bug.cgi?id=124442

        Reviewed by Sam Weinig.

        Base64URL encoding doesn't use '=' padding, and doesn't need any other options.
        Added this mode for encode, and removed policy arguments from exposed functions.

        * wtf/text/Base64.cpp:
        (WTF::base64EncodeInternal):
        (WTF::base64URLEncode):
        (WTF::base64URLDecode):
        * wtf/text/Base64.h:
        (WTF::base64URLEncode):

2013-11-15  Mark Hahnenberg  <mhahnenberg@apple.com>

        Remove VTableSpectrum
        https://bugs.webkit.org/show_bug.cgi?id=124427

        Reviewed by Filip Pizlo.

        * wtf/Platform.h:

2013-11-15  Jer Noble  <jer.noble@apple.com>

        MediaTime addition and subtraction operators have errors when the rhs is infinite.
        https://bugs.webkit.org/show_bug.cgi?id=124413

        Reviewed by Eric Carlson.

        Correctly account for infinities that can occur on the right-hand side of addition or
        subtraction operators.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::operator+):
        (WTF::MediaTime::operator-):

2013-11-14  Oliver Hunt  <oliver@apple.com>

        Make CLoop easier to build, and make it work
        https://bugs.webkit.org/show_bug.cgi?id=124359

        Reviewed by Geoffrey Garen.

        Make building with the CLoop forcibly enabled manually
        disable the JITs

        * wtf/Platform.h:

2013-11-14  Andreas Kling  <akling@apple.com>

        FontDescription copies should share families list, not duplicate it.
        <https://webkit.org/b/124338>

        Add RefCountedArray::operator==.

        Reviewed by Antti Koivisto.

2013-11-13  Anders Carlsson  <andersca@apple.com>

        Add a Vector constructor that takes an std::initializer_list
        https://bugs.webkit.org/show_bug.cgi?id=124287

        Reviewed by Antti Koivisto.

        * wtf/Compiler.h:
        * wtf/Vector.h:
        (WTF::Vector::Vector):

2013-11-12  Brent Fulgham  <bfulgham@apple.com>

        [Win] Unreviewed gardening.

        * WTF.vcxproj/WTF.vcxproj.filters: Tidy up filters so files show up
        in their proper directories.

2013-11-12  Alex Christensen  <achristensen@webkit.org>

        Build GStreamer files on Windows.
        https://bugs.webkit.org/show_bug.cgi?id=124180

        Reviewed by Brent Fulgham.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.vcxproj/copy-files.cmd:
        Include gobject files in WinCairo build.

2013-11-09  Filip Pizlo  <fpizlo@apple.com>

        Switch FTL GetById/PutById IC's over to using AnyRegCC
        https://bugs.webkit.org/show_bug.cgi?id=124094

        Reviewed by Sam Weinig.
        
        I needed to add another set operation, namely filter(), which is an in-place set
        intersection.

        * wtf/BitVector.cpp:
        (WTF::BitVector::filterSlow):
        * wtf/BitVector.h:
        (WTF::BitVector::filter):

2013-11-10  Ryuan Choi  <ryuan.choi@samsung.com>

        [EFL] Build break on Ubuntu 13.10
        https://bugs.webkit.org/show_bug.cgi?id=124131

        Reviewed by Gyuyoung Kim.

        Turned DisallowCType macros off on EFL port because gtest-internal.h uses isspace().

        * wtf/DisallowCType.h: Added !PLATFORM(EFL) guard.

2013-11-09  Patrick Gansterer  <paroga@webkit.org>

        Move RunLoop from WebCore to WTF
        https://bugs.webkit.org/show_bug.cgi?id=116606

        Reviewed by Anders Carlsson.

        With this change RunLoop can be used in JavaScriptCore too.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformBlackBerry.cmake:
        * wtf/PlatformEfl.cmake:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/RunLoop.cpp: Renamed from Source/WebCore/platform/RunLoop.cpp.
        (WTF::RunLoop::Holder::Holder):
        (WTF::RunLoop::Holder::runLoop):
        (WTF::RunLoop::initializeMainRunLoop):
        (WTF::RunLoop::current):
        (WTF::RunLoop::main):
        (WTF::RunLoop::isMain):
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::dispatch):
        * wtf/RunLoop.h: Renamed from Source/WebCore/platform/RunLoop.h.
        (WTF::RunLoop::TimerBase::startRepeating):
        (WTF::RunLoop::TimerBase::startOneShot):
        (WTF::RunLoop::TimerBase::isRepeating):
        (WTF::RunLoop::Timer::Timer):
        (WTF::RunLoop::Timer::fired):
        * wtf/blackberry/RunLoopBlackBerry.cpp: Renamed from Source/WebCore/platform/blackberry/RunLoopBlackBerry.cpp.
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::wakeUp):
        * wtf/cf/RunLoopCF.cpp: Renamed from Source/WebCore/platform/cf/RunLoopCF.cpp.
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::runForDuration):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::run):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::TimerBase::timerFired):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):
        * wtf/efl/RunLoopEfl.cpp: Renamed from Source/WebCore/platform/efl/RunLoopEfl.cpp.
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::run):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::wakeUpEvent):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::timerFired):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):
        * wtf/gtk/RunLoopGtk.cpp: Renamed from Source/WebCore/platform/gtk/RunLoopGtk.cpp.
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::run):
        (WTF::RunLoop::innermostLoop):
        (WTF::RunLoop::pushNestedMainLoop):
        (WTF::RunLoop::popNestedMainLoop):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::queueWork):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::clearTimerSource):
        (WTF::RunLoop::TimerBase::timerFiredCallback):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):
        * wtf/win/RunLoopWin.cpp: Renamed from Source/WebCore/platform/win/RunLoopWin.cpp.
        (WTF::RunLoop::RunLoopWndProc):
        (WTF::RunLoop::wndProc):
        (WTF::RunLoop::run):
        (WTF::RunLoop::stop):
        (WTF::RunLoop::registerRunLoopMessageWindowClass):
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::wakeUp):
        (WTF::RunLoop::TimerBase::timerFired):
        (WTF::generateTimerID):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::~TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive):

2013-11-08  Alexey Proskuryakov  <ap@apple.com>

        Make base64url decoding actually work
        https://bugs.webkit.org/show_bug.cgi?id=124050

        Reviewed by Sam Weinig.

        * wtf/text/Base64.cpp: (WTF::base64DecodeInternal): Don't hardcode knowledge about
        alphabet, put it into the map.

2013-11-07  Denis Nomiyama  <d.nomiyama@samsung.com>

        [GTK] Glyphs in vertical text tests are rotated 90 degrees clockwise
        https://bugs.webkit.org/show_bug.cgi?id=50619

        Reviewed by Martin Robinson.

        Enabled OPENTYPE_VERTICAL by default on GTK+ and EFL ports, which are
        currently using Freetype.

        * wtf/Platform.h:

2013-11-06  Daniel Bates  <dabates@apple.com>

        [iOS] Upstream Letterpress effect
        https://bugs.webkit.org/show_bug.cgi?id=123932

        Reviewed by Sam Weinig.

        Add feature define ENABLE_LETTERPRESS disabled by default. We only enable
        letterpress on iOS.

        * wtf/FeatureDefines.h:

2013-11-06  Nick Diego Yamane  <nick.yamane@openbossa.org>

        Disable "unused local typedefs" warning for GCC 4.7
        https://bugs.webkit.org/show_bug.cgi?id=123913

        Reviewed by Martin Robinson.

        That warning was actually introduced in gcc 4.7.0.
        See: http://gcc.gnu.org/gcc-4.7/changes.html

        * wtf/Compiler.h:

2013-11-06  Daniel Bates  <dabates@apple.com>

        Add ENABLE(TEXT_SELECTION)
        https://bugs.webkit.org/show_bug.cgi?id=123827

        Reviewed by Ryosuke Niwa.

        Enable selection painting by default on all ports except iOS.

        * wtf/FeatureDefines.h:

2013-11-04  Alexey Proskuryakov  <ap@apple.com>

        Implement base64url encoding from RFC 4648
        https://bugs.webkit.org/show_bug.cgi?id=123767

        Reviewed by Sam Weinig.

        No tests yet, will be covered by JWK tests for WebCrypto.

        * wtf/text/Base64.cpp:
        (WTF::base64EncodeInternal):
        (WTF::base64Encode):
        (WTF::base64URLEncode):
        (WTF::base64DecodeInternal):
        (WTF::base64Decode):
        (WTF::base64URLDecode):
        * wtf/text/Base64.h:
        (WTF::base64URLEncode):

2013-11-04  Brent Fulgham  <bfulgham@apple.com>

        [Win] User VersionStamper for official builds
        https://bugs.webkit.org/show_bug.cgi?id=123758

        Reviewed by Tim Horton.

        * WTF.vcxproj/WTFPostBuild.cmd: Add missing command to run VersionStamper.exe.

2013-11-01  Jer Noble  <jer.noble@apple.com>

        [PluginProxy] Add a setting to disable video plugin proxy support in HTMLMediaElement.
        https://bugs.webkit.org/show_bug.cgi?id=123621

        Reviewed by Eric Carlson.

        Enable WTF_USE_AVFOUNDATION and add some HAVE_AVFOUNDATION_* defines
        to replace the existing __MAC_OS_X_VERSION_MIN_REQUIRED macros in
        MediaPlayerPrivateAVFoundationObjC.mm.

        * wtf/Platform.h:

2013-11-02  Patrick Gansterer  <paroga@webkit.org>

        Fix compilation of DateMath.cpp with MSVC
        https://bugs.webkit.org/show_bug.cgi?id=123680

        Reviewed by Darin Adler.

        * wtf/DateMath.cpp:
        (WTF::appendTwoDigitNumber): Help the compiler finding the
        correct overload by casting the characters to LChar.

2013-11-02  Filip Pizlo  <fpizlo@apple.com>

        LLVM assertion failures should funnel into WTF's crash handling
        https://bugs.webkit.org/show_bug.cgi?id=123682

        Reviewed by Geoffrey Garen.
        
        Give JSC some new toys to play with for crash handling.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2013-11-02  Patrick Gansterer  <paroga@webkit.org>

        Fix UnicodeWchar after r157330.
        https://bugs.webkit.org/show_bug.cgi?id=123668

        Reviewed by Darin Adler.

        * wtf/unicode/wchar/UnicodeWchar.cpp:
        (unorm_normalize):
        (u_strFoldCase):
        (u_strToLower):
        (u_strToUpper):
        * wtf/unicode/wchar/UnicodeWchar.h:
        (u_foldCase):
        (u_isprint):
        (u_isspace):

2013-11-02  Andreas Kling  <akling@apple.com>

        Make remaining StringImpl functions return PassRef.
        <https://webkit.org/b/123683>

        Okay, this seems to work well! Let's go all in and convert the
        remaining StringImpl functions to return PassRef<StringImpl> instead
        of PassRefPtr where we know that null is never returned.

        Reviewed by Anders Carlsson.

2013-11-02  Andreas Kling  <akling@apple.com>

        StringImpl::upper() should return PassRef.
        <https://webkit.org/b/123655>

        Make upper() return PassRef<StringImpl>. Spotted and removed some
        ref churning in implementations.

        Reviewed by Darin Adler.

2013-11-01  Alexey Proskuryakov  <ap@apple.com>

        Add WebCrypto AES-CBC
        https://bugs.webkit.org/show_bug.cgi?id=123647

        Reviewed by Anders Carlsson.

        * wtf/FixedArray.h: (WTF::FixedArray::data): Added a const version of the function.

        * wtf/Vector.h: Added a comment to Vector constructor about how it is different
        from std::vector.

2013-11-01  Joseph Pecoraro  <pecoraro@apple.com>

        Unreviewed extended attempt at Windows build fix after r158471.

        * wtf/text/cf/AtomicStringCF.cpp:
        * wtf/text/cf/StringCF.cpp:
        * wtf/text/cf/StringImplCF.cpp:

2013-11-01  Joseph Pecoraro  <pecoraro@apple.com>

        Unreviewed attempt at Windows build fix after r158471.

        * wtf/text/cf/AtomicStringCF.cpp:
        * wtf/text/cf/StringCF.cpp:
        * wtf/text/cf/StringImplCF.cpp:

2013-11-01  Andreas Kling  <akling@apple.com>

        Make more StringImpl construction helpers return PassRef.
        <https://webkit.org/b/123652>

        Tweak another handful of StringImpl constructor functions to return
        PassRef<StringImpl> instead of PassRefPtr.

        Reviewed by Anders Carlsson.

2013-11-01  Andreas Kling  <akling@apple.com>

        Neuter WTF_MAKE_FAST_ALLOCATED in GLOBAL_FASTMALLOC_NEW builds.
        <https://webkit.org/b/123639>

        When building with GLOBAL_FASTMALLOC_NEW, we don't need to expand
        operator new/delete overrides in every class.

        This change makes allocations group up nicely in Instruments,
        instead of being split between "WTF::fastMalloc" and "operator new"
        depending on whether the class had WTF_MAKE_FAST_ALLOCATED.

        Reviewed by Anders Carlsson.

2013-11-01  Joseph Pecoraro  <pecoraro@apple.com>

        Move CF/Mac WTF String implementations down into WTF
        https://bugs.webkit.org/show_bug.cgi?id=123635

        Reviewed by Sam Weinig.

        * WTF.vcxproj/WTF.vcxproj:
        * WTF.vcxproj/WTF.vcxproj.filters:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/text/AtomicString.h:
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:
        * wtf/text/cf/AtomicStringCF.cpp: Renamed from Source/WebCore/platform/text/cf/AtomicStringCF.cpp.
        (WTF::AtomicString::add):
        * wtf/text/cf/StringCF.cpp: Renamed from Source/WebCore/platform/text/cf/StringCF.cpp.
        (WTF::String::String):
        (WTF::String::createCFString):
        * wtf/text/cf/StringImplCF.cpp: Renamed from Source/WebCore/platform/text/cf/StringImplCF.cpp.
        (garbageCollectionEnabled):
        (WTF::StringWrapperCFAllocator::retain):
        (WTF::StringWrapperCFAllocator::release):
        (WTF::StringWrapperCFAllocator::copyDescription):
        (WTF::StringWrapperCFAllocator::allocate):
        (WTF::StringWrapperCFAllocator::reallocate):
        (WTF::StringWrapperCFAllocator::deallocateOnMainThread):
        (WTF::StringWrapperCFAllocator::deallocate):
        (WTF::StringWrapperCFAllocator::preferredSize):
        (WTF::StringWrapperCFAllocator::create):
        (WTF::StringWrapperCFAllocator::allocator):
        (WTF::StringImpl::createCFString):
        * wtf/text/mac/StringImplMac.mm: Renamed from Source/WebCore/platform/text/mac/StringImplMac.mm.
        (WTF::StringImpl::operator NSString *):
        * wtf/text/mac/StringMac.mm: Renamed from Source/WebCore/platform/text/mac/StringMac.mm.
        (WTF::String::String):

2013-11-01  Emilio Pozuelo Monfort  <pochu27@gmail.com>

        HPPA build fixes
        https://bugs.webkit.org/show_bug.cgi?id=123625

        Original patch from John David Anglin <dave.anglin@bell.net>

        Reviewed by Darin Adler.

        * wtf/Platform.h:
        * wtf/dtoa/utils.h:

2013-11-01  Patrick Gansterer  <paroga@webkit.org>

        Buildfix for !USE(ICU_UNICODE) after 156968.

        * wtf/unicode/CollatorDefault.cpp:
        (WTF::Collator::userDefault):

2013-10-30  Oliver Hunt  <oliver@apple.com>

        Implement basic ES6 Math functions
        https://bugs.webkit.org/show_bug.cgi?id=123536

        Reviewed by Michael Saboff.

        Add basic implementations of necessary methods to MathExtras to
        deal with MSVC not supplying them

        * wtf/MathExtras.h:
        (asinh):
        (acosh):
        (atanh):
        (expm1):
        (log1p):
        (cbrt):

2013-10-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r158299.
        http://trac.webkit.org/changeset/158299
        https://bugs.webkit.org/show_bug.cgi?id=123558

        caused assertion failures in fast/canvas/canvas-color-
        serialization.html and fast/forms/input-text-paste-
        maxlength.html (Requested by rniwa on #webkit).

        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):

2013-10-30  Ryosuke Niwa  <rniwa@webkit.org>

        Remove code for Mac Lion
        https://bugs.webkit.org/show_bug.cgi?id=123542

        Reviewed by Anders Carlsson.

        * wtf/Platform.h:

2013-10-30  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove PCRE workaround.
        https://bugs.webkit.org/show_bug.cgi?id=123265

        Reviewed by Brent Fulgham.

        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):

2013-10-30  peavo@outlook.com  <peavo@outlook.com>

        [Win] Compile errors when enabling DFG JIT.
        https://bugs.webkit.org/show_bug.cgi?id=120998

        Reviewed by Brent Fulgham.

        * wtf/CompilationThread.cpp: Use new ThreadingOnce class instead of pthread_once.
        (WTF::initializeCompilationThreads):
        * wtf/ThreadingOnce.h: Added ThreadingOnce class encapsulating pthread_once functionality.
        (WTF::ThreadingOnce::ThreadingOnce):
        (WTF::ThreadingOnce::~ThreadingOnce):
        (WTF::ThreadingOnce::callOnce):
        * wtf/text/CString.h: Export needed symbols.

2013-10-30  Alex Christensen  <achristensen@webkit.org>

        Disabled JIT on Win64.
        https://bugs.webkit.org/show_bug.cgi?id=122472

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:
        Disabled JIT on Win64.

2013-10-29  Andreas Kling  <akling@apple.com>

        StringImpl::isolatedCopy() should return PassRef.
        <https://webkit.org/b/123484>

        Make isolatedCopy() return a PassRef<StringImpl>.

        Reviewed by Anders Carlsson.

2013-10-29  Jer Noble  <jer.noble@apple.com>

        [MSE] [Mac] Enable MediaSource on the Mac
        https://bugs.webkit.org/show_bug.cgi?id=122484

        Reviewed by Darin Adler.

        Enable ENABLE_MEDIA_SOURCE.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h: Force a clean build.

2013-10-29  Andreas Kling  <akling@apple.com>

        StringImpl::adopt() should return PassRef.
        <https://webkit.org/b/123456>

        Make the StringImpl::adopt() functions return a PassRef<StringImpl>.

        Reviewed by Anders Carlsson.

2013-10-29  Jinwoo Song  <jinwoo7.song@samsung.com>

        Re-enable simple line layout for EFL
        https://bugs.webkit.org/show_bug.cgi?id=123402

        Reviewed by Antti Koivisto.

        * wtf/FeatureDefines.h: Enable 8-bit TextRun support for EFL port.

2013-10-28  Anders Carlsson  <andersca@apple.com>

        RunLoop::dispatch should take an std::function
        https://bugs.webkit.org/show_bug.cgi?id=123407

        Reviewed by Andreas Kling.

        * wtf/FunctionDispatcher.h:

2013-10-28  Andreas Kling  <akling@apple.com>

        RenderElement::m_style should be a Ref.
        <https://webkit.org/b/123401>

        Added a Ref::replace() so we can Indiana Jones the new style in
        RenderElement::setStyle() while keeping a handle on the old style
        for a while longer.

        Reviewed by Antti Koivisto.

2013-10-28  Carlos Garcia Campos  <cgarcia@igalia.com>

        Unreviewed. Fix make distcheck.

        * GNUmakefile.list.am: Remove unexistent file from compilation.

2013-10-28  Bastien Nocera <hadess@hadess.net>

        Replace 0 timeouts g_timeout_add() by g_idle_add()
        https://bugs.webkit.org/show_bug.cgi?id=123260

        Reviewed by Carlos Garcia Campos.

        A zero timeout should be equivalent to using g_idle_add_full(G_PRIORITY_DEFAULT, ...)
        without the nagging feeling that the wrong API was used.

        * wtf/gtk/MainThreadGtk.cpp: Use g_idle_add() instead
        of 0-timer.
        (WTF::scheduleDispatchFunctionsOnMainThread):

2013-10-28  Zan Dobersek  <zdobersek@igalia.com>

        Re-enable simple line layout for GTK
        https://bugs.webkit.org/show_bug.cgi?id=123388

        Reviewed by Andreas Kling.

        * wtf/FeatureDefines.h: Enable the 8-bit TextRun support for the GTK port.

2013-10-25  Joseph Pecoraro  <pecoraro@apple.com>

        Upstream ENABLE(REMOTE_INSPECTOR) and enable on iOS and Mac
        https://bugs.webkit.org/show_bug.cgi?id=123111

        Reviewed by Timothy Hatcher.

        * wtf/FeatureDefines.h:

2013-10-25  Jer Noble  <jer.noble@apple.com>

        [WTF] Add a multiplication operator (and a few others) to MediaTime
        https://bugs.webkit.org/show_bug.cgi?id=123137

        Reviewed by Eric Carlson.

        Add a multiplication operator and an inequality operator to the
        MediaTime class for use by MSE.

        * wtf/MediaTime.cpp:
        (WTF::signum): Moved to top of file.
        (WTF::MediaTime::operator*): Added.
        (WTF::MediaTime::operator!=): Added.
        * wtf/MediaTime.h:
        (WTF::operator*): Added non-class version of operator*.

2013-10-24  Jer Noble  <jer.noble@apple.com>

        [Mac] Add helper methods to convert CMTime <--> MediaTime
        https://bugs.webkit.org/show_bug.cgi?id=123285

        Reviewed by Eric Carlson.

        Add a #ifdef header_h protector.

        * wtf/MediaTime.h:

2013-10-24  Mark Rowe  <mrowe@apple.com>

        Remove references to OS X 10.7 from Xcode configuration settings.

        Now that we're not building for OS X 10.7 they're no longer needed.

        Reviewed by Anders Carlsson.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2013-10-24  Mark Rowe  <mrowe@apple.com>

        <rdar://problem/15312643> Prepare for the mysterious future.

        Reviewed by David Kilzer.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2013-10-24  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r157931.
        http://trac.webkit.org/changeset/157931
        https://bugs.webkit.org/show_bug.cgi?id=123284

        Seems to have caused a lot of assertions on debug bots
        (Requested by ap on #webkit).

        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):

2013-10-24  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove PCRE workaround.
        https://bugs.webkit.org/show_bug.cgi?id=123265

        Reviewed by Darin Adler.

        * wtf/text/StringStatics.cpp:
        (WTF::StringImpl::empty):

2013-10-24  Peter Molnar  <pmolnar.u-szeged@partner.samsung.com>

        Remove Clang workaround.
        https://bugs.webkit.org/show_bug.cgi?id=123262

        Reviewed by Anders Carlsson.

        * wtf/CheckedArithmetic.h:
        (WTF::Checked::Checked):

2013-10-24  Ryuan Choi  <ryuan.choi@samsung.com>

        [EFL] Build break with latest EFL 1.8 libraries.
        https://bugs.webkit.org/show_bug.cgi?id=123245

        Reviewed by Gyuyoung Kim.

        After fixed build break on EFL 1.8 at r138326, EFL libraries are changed
        Eo typedef and splitted header files which contain version macro.

        * wtf/OwnPtrCommon.h: Changed Eo typedef.
        * wtf/efl/RefPtrEfl.h: Ditto.

2013-10-24  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GObject bindings] Make EventTarget interface introspectable
        https://bugs.webkit.org/show_bug.cgi?id=77835

        Reviewed by Gustavo Noronha Silva.

        Add support for use GRefPtr with GClosure.

        * wtf/gobject/GRefPtr.cpp:
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/gobject/GRefPtr.h:
        * wtf/gobject/GTypedefs.h:

2013-10-23  Anders Carlsson  <andersca@apple.com>

        Remove USE(LOCKFREE_THREADSAFEREFCOUNTED)
        https://bugs.webkit.org/show_bug.cgi?id=123228

        Reviewed by Geoffrey Garen.

        All ports support USE(LOCKFREE_THREADSAFEREFCOUNTED) now and taking a lock on every ref/deref seems bad.

        * wtf/Atomics.h:
        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCountedBase::ref):
        (WTF::ThreadSafeRefCountedBase::refCount):
        (WTF::ThreadSafeRefCountedBase::derefBase):

2013-10-23  Anders Carlsson  <andersca@apple.com>

        Remove HAVE_XPC
        https://bugs.webkit.org/show_bug.cgi?id=123226

        Reviewed by Dan Bernstein.

        HAVE_XPC has been true on Mac since Lion, so remove it.

        * wtf/Platform.h:

2013-10-23  Andreas Kling  <akling@apple.com>

        Make more StringImpl construction functions return PassRef.
        <https://webkit.org/b/123203>

        Knock out a couple more of the StringImpl construction helpers that
        always return a non-null StringImpl.

        Reviewed by Antti Koivisto.

2013-10-22  Filip Pizlo  <fpizlo@apple.com>

        FTL should be able to do some simple inline caches using LLVM patchpoints
        https://bugs.webkit.org/show_bug.cgi?id=123164

        Reviewed by Mark Hahnenberg.
        
        This needed some better bitvector support, like merging (|=), excluding (&=~),
        hashing, and bit counting.

        * wtf/BitVector.cpp:
        (WTF::BitVector::setSlow):
        (WTF::BitVector::excludeSlow):
        (WTF::BitVector::bitCountSlow):
        (WTF::BitVector::equalsSlowCase):
        (WTF::BitVector::hashSlowCase):
        (WTF::BitVector::dump):
        * wtf/BitVector.h:
        (WTF::BitVector::merge):
        (WTF::BitVector::exclude):
        (WTF::BitVector::bitCount):
        (WTF::BitVector::BitVector):
        (WTF::BitVector::isEmptyValue):
        (WTF::BitVector::isDeletedValue):
        (WTF::BitVector::isEmptyOrDeletedValue):
        (WTF::BitVector::operator==):
        (WTF::BitVector::hash):
        (WTF::BitVectorHash::hash):
        (WTF::BitVectorHash::equal):
        * wtf/HashTraits.h:
        (WTF::CustomHashTraits::constructDeletedValue):
        (WTF::CustomHashTraits::isDeletedValue):
        (WTF::CustomHashTraits::emptyValue):
        (WTF::CustomHashTraits::isEmptyValue):
        * wtf/StdLibExtras.h:
        (WTF::bitCount):

2013-10-23  Allan Sandfeld Jensen  <allan.jensen@digia.com>

        Clean-up in Atomics.h
        https://bugs.webkit.org/show_bug.cgi?id=123207

        Reviewed by Anders Carlsson.

        Atomics.h has two confusing and bit-rotted ifdefs with comments.

        The first about CPU(SPARC64) was rendered obsolete when we switched
        from __exchange_and_add to __sync_add_and_fetch.

        The second was caused by a wrong definition that apparently only
        caused trouble on GCC.

        * wtf/Atomics.h:

2013-10-22  Andreas Kling  <akling@apple.com>

        StringImpl::lower() should return a PassRef.
        <https://webkit.org/b/123190>

        Test the waters and hack enough of StringImpl to be able to return
        a PassRef<StringImpl> from lower().

        Also gave String a constructor that takes a PassRef<StringImpl>.

        Reviewed by Antti Koivisto.

2013-10-22  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r157835.
        http://trac.webkit.org/changeset/157835
        https://bugs.webkit.org/show_bug.cgi?id=123192

        broke 32-bit builds (Requested by smfr on #webkit).

        * wtf/MediaTime.cpp:
        (WTF::signum):
        * wtf/MediaTime.h:

2013-10-22  Jer Noble  <jer.noble@apple.com>

        [WTF] Add a multiplication operator (and a few others) to MediaTime
        https://bugs.webkit.org/show_bug.cgi?id=123137

        Reviewed by Eric Carlson.

        Add a multiplication operator and an inequality operator to the
        MediaTime class for use by MSE.

        * wtf/MediaTime.cpp:
        (WTF::signum): Moved to top of file.
        (WTF::MediaTime::operator*): Added.
        (WTF::MediaTime::operator!=): Added.
        * wtf/MediaTime.h:
        (WTF::operator*): Added non-class version of operator*.

2013-10-21  Gyuyoung Kim  <gyuyoung.kim@samsung.com>

        Make TYPE_CASTS_BASE more flexible
        https://bugs.webkit.org/show_bug.cgi?id=122951

        Reviewed by Andreas Kling.

        TYPE_CASTS_BASE is being used by node|element type casts. However, it is difficult
        to be used by other type casts. For instance, CSSValue, Accessibility and so on.
        This patch modifies TYPE_CASTS_BASE which can support other type casts.

        Besides TYPE_CASTS_BASE body is moved from node.h to Assertions.h.

        * wtf/Assertions.h:

2013-10-20  Filip Pizlo  <fpizlo@apple.com>

        StructureStubInfo's usedRegisters set should be able to track all registers, not just the ones that our JIT's view as temporaries
        https://bugs.webkit.org/show_bug.cgi?id=123076

        Reviewed by Sam Weinig.
        
        Teach BitVector how to efficiently merge (i.e. bitvector |=).

        * wtf/BitVector.cpp:
        (WTF::BitVector::mergeSlow):
        * wtf/BitVector.h:
        (WTF::BitVector::merge):
        (WTF::BitVector::cleanseInlineBits):

2013-10-19  Jer Noble  <jer.noble@apple.com>

        Unreviewed roll out of r157695; broke Mac builds.

        * wtf/FeatureDefines.h:

2013-10-07  Jer Noble  <jer.noble@apple.com>

        [MSE] [Mac] Enable MediaSource on the Mac
        https://bugs.webkit.org/show_bug.cgi?id=122484

        Reviewed by Darin Adler.

        Enable ENABLE_MEDIA_SOURCE.

        * wtf/FeatureDefines.h:

2013-10-19  Andreas Kling  <akling@apple.com>

        RefPtr::releaseNonNull() incorrectly increments the refcount.
        <https://webkit.org/b/123063>

        Make releaseNonNull() use adoptRef(T&), mirroring release().

        Reviewed by Anders Carlsson.

2013-10-18  Andreas Kling  <akling@apple.com>

        Start passing RenderStyle around with PassRef.
        <https://webkit.org/b/123051>

        Added some new PassRef tricks to make this patch possible.

        Reviewed by Darin Adler.

        * wtf/PassRef.h:
        (WTF::PassRef::get):

            Added a get() helper to facilitate writing functions that
            construct a new object and call some functions on it before
            returning it.

        (WTF::PassRef::dropRef):

            This will deref() the referenced object and mark the PassRef
            as "passed." This is used in code paths where the PassRef is
            going to go out of scope with nobody to take it over.

        (WTF::PassRef::leakRef):

            Renamed takeReference() to leakRef() and made it public so
            we don't have to awkwardly sink the PassRef into a Ref for
            e.g static locals.

        * wtf/RefPtr.h:
        (WTF::RefPtr::releaseNonNull):

            Added RefPtr::releaseNonNull() for a convenient way of creating
            a PassRef<T> from a RefPtr<T>. This function may only be called
            if the RefPtr is known to be non-null.

2013-10-18  Filip Pizlo  <fpizlo@apple.com>

        A CodeBlock's StructureStubInfos shouldn't be in a Vector that we search using code origins and machine code PCs
        https://bugs.webkit.org/show_bug.cgi?id=122940

        Reviewed by Oliver Hunt.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/BagToHashMap.h: Added.
        (WTF::toHashMap):
        * wtf/CMakeLists.txt:

2013-10-18  Anders Carlsson  <andersca@apple.com>

        Remove spaces between template angle brackets
        https://bugs.webkit.org/show_bug.cgi?id=123040

        Reviewed by Andreas Kling.

        * wtf/AVLTree.h:
        * wtf/CheckedArithmetic.h:
        * wtf/Compression.h:
        * wtf/Functional.h:
        (WTF::R):
        * wtf/HashFunctions.h:
        * wtf/HashIterators.h:
        * wtf/HashSet.h:
        (WTF::::contains):
        * wtf/ListHashSet.h:
        (WTF::::contains):
        * wtf/RefCountedLeakCounter.cpp:
        * wtf/RetainPtr.h:
        * wtf/SentinelLinkedList.h:
        (WTF::::remove):
        * wtf/SizeLimits.cpp:
        * wtf/StreamBuffer.h:
        * wtf/Vector.h:
        * wtf/VectorTraits.h:
        * wtf/WeakPtr.h:
        (WTF::WeakReference::create):
        (WTF::WeakReference::createUnbound):
        (WTF::WeakPtr::WeakPtr):
        (WTF::WeakPtrFactory::WeakPtrFactory):
        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::add):
        (WTF::findString):
        * wtf/text/StringConcatenate.h:
        * wtf/text/StringImpl.h:
        * wtf/text/StringOperators.h:
        (WTF::operator+):

2013-10-18  Brendan Long  <b.long@cablelabs.com>

        [GStreamer][GTK] Add GRefPtr::outPtr()
        https://bugs.webkit.org/show_bug.cgi?id=122996

        Reviewed by Philippe Normand.

        * wtf/gobject/GRefPtr.h:
        (WTF::GRefPtr::outPtr): Added.

2013-10-17  Geoffrey Garen  <ggaren@apple.com>

        Tidied up the Vector<T> move constructor
        https://bugs.webkit.org/show_bug.cgi?id=122998

        Reviewed by Anders Carlsson.

        * wtf/Vector.h:
        (WTF::::Vector): Don't call swap() "weird". It's the way most std types
        implement move constructors.

        Do inline this function, so the compiler can optimize away a logical
        move into a physical no-op.

2013-10-16  Filip Pizlo  <fpizlo@apple.com>

        Introduce WTF::Bag and start using it for InlineCallFrameSet
        https://bugs.webkit.org/show_bug.cgi?id=122941

        Reviewed by Geoffrey Garen.
        
        Introduce WTF::Bag, which is basically an allocation pool. No POD restrictions. Does one
        malloc per entry. No need to shrink afterwards.

        * GNUmakefile.list.am:
        * WTF.vcxproj/WTF.vcxproj:
        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bag.h: Added.
        (WTF::Bag::Bag):
        (WTF::Bag::~Bag):
        (WTF::Bag::add):
        (WTF::Bag::iterator::iterator):
        (WTF::Bag::iterator::operator!):
        (WTF::Bag::iterator::operator*):
        (WTF::Bag::iterator::operator++):
        (WTF::Bag::iterator::operator==):
        (WTF::Bag::begin):
        (WTF::Bag::end):
        (WTF::Bag::isEmpty):
        * wtf/CMakeLists.txt:

2013-10-17  Andreas Kling  <akling@apple.com>

        Make it possible to assign a PassRef to a RefPtr.
        <https://webkit.org/b/122943>

        We have to use std::move when constructing a RefPtr from a PassRef
        since there is no copy constructor for the latter.

        Reviewed by Antti Koivisto.

2013-10-16  Ryuan Choi  <ryuan.choi@samsung.com>

        Unreviewed build fix attempt on EFL port after r157520 and r157523

        * wtf/PassRef.h: includes <utility>

2013-10-16  Darin Adler  <darin@apple.com>

        Add PassRef and createRefCounted so we can improve creation of RefCounted objects
        https://bugs.webkit.org/show_bug.cgi?id=122904

        Reviewed by Anders Carlsson.

        * GNUmakefile.list.am: Added PassRef.h.
        * WTF.vcxproj/WTF.vcxproj: Ditto.
        * WTF.vcxproj/WTF.vcxproj.filters: Ditto.
        * WTF.xcodeproj/project.pbxproj: Ditto.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/Forward.h: Added PassRef. Also re-sorted and un-indented to match what
        the style-checking script expects.

        * wtf/PassRef.h: Added. Includes the createRefCounted function template, which
        is analogous to make_unique, but is for reference counted objects, and also
        assumes that new will never return null. Also includes an overload of adoptRef
        that takes a reference rather than a pointer.

        * wtf/PassRefPtr.h: Include "PassRef.h" so we can share the adopted function.
        Got rid of declarations that duplicate ones in there.
        (WTF::refIfNotNull): Use nullptr.
        (WTF::derefIfNotNull): Use nullptr.
        (WTF::PassRefPtr::PassRefPtr): Use nullptr. Added an overload that takes a PassRef.
        (WTF::PassRefPtr::operator UnspecifiedBoolType): Use nullptr.
        (WTF::PassRefPtr::operator=): Made this deleted instead of compile time assertion.
        (WTF::PassRefPtr::PassRefPtr): Made adopting constructor use an adopt tag instead
        of an unused boolean.
        (WTF::PassRefPtr::leakRef): Use nullptr.
        (WTF::adoptRef): Use the adopt tag.

        * wtf/Ref.h: Use Noncopyable instead of rolling our own.
        (WTF::Ref::Ref): Add an overload that takes a PassRef.
        (WTF::Ref::operator=): Ditto.

        * wtf/RefPtr.h: Removed unneeded forward declaration of PassRefPtr.
        (WTF::RefPtr::RefPtr): Use nullptr. Added overload that takes a PassRef.
        (WTF::RefPtr::release): Use nullptr.
        (WTF::RefPtr::operator UnspecifiedBoolType): Use nullptr.
        (WTF::RefPtr::operator=): Added overload that takes a PassRef.
        (WTF::RefPtr::clear): Use nullptr.

        * wtf/StdLibExtras.h: Added inline keyword to isPointerTypeAlignmentOkay,
        reinterpret_cast_ptr, and make_unique. Seems like a simple oversight that these
        were missing before.

2013-10-15  Dean Jackson  <dino@apple.com>

        Add ENABLE_WEB_ANIMATIONS flag
        https://bugs.webkit.org/show_bug.cgi?id=122871

        Reviewed by Tim Horton.

        Eventually might be http://dev.w3.org/fxtf/web-animations/
        but this is just engine-internal work at the moment.

        * wtf/FeatureDefines.h:

2013-10-15  Daniel Bates  <dabates@apple.com>

        [iOS] Upstream JavaScriptCore support for ARM64
        https://bugs.webkit.org/show_bug.cgi?id=122762

        Reviewed by Oliver Hunt.

        * Configurations/Base.xcconfig:
        * wtf/Atomics.h:
        (WTF::weakCompareAndSwap):
        (WTF::armV7_dmb):
        * wtf/FastMalloc.cpp:
        * wtf/Platform.h:
        * wtf/dtoa.cpp:
        * wtf/dtoa/utils.h:
        * wtf/text/ASCIIFastPath.h:
        (WTF::copyLCharsFromUCharSource):
        * wtf/text/StringImpl.h:

2013-10-14  Zan Dobersek  <zdobersek@igalia.com>

        Static assertions in WTF::adoptPtr should point to using adoptRef for ref-counted objects
        https://bugs.webkit.org/show_bug.cgi?id=122745

        Reviewed by Anders Carlsson.

        * wtf/PassOwnPtr.h:
        (WTF::adoptPtr): When the object's type is convertible to the RefCountedBase or ThreadSafeRefCountedBase type,
        the static assertion should note that adoptRef should be used instead.

2013-10-14  Anders Carlsson  <andersca@apple.com>

        WebKit Nightlies broken by r157374
        https://bugs.webkit.org/show_bug.cgi?id=122736

        Reviewed by Andreas Kling.

        Add back a callOnMainThread overload that Safari is using.

        * wtf/MainThread.cpp:
        (WTF::callOnMainThread):
        * wtf/MainThread.h:

2013-10-13  Darin Adler  <darin@apple.com>

        Deprecate or remove deleteAllValues functions; there are only a few call sites left
        https://bugs.webkit.org/show_bug.cgi?id=122738

        Reviewed by Anders Carlsson.

        * wtf/Deque.h: Deleted deleteAllValues.
        * wtf/HashMap.h: Ditto.
        * wtf/HashSet.h: Ditto.
        * wtf/ListHashSet.h: Ditto.
        * wtf/Vector.h: Renamed deleteAllValues to deprecatedDeleteAllValues.

== Rolled over to ChangeLog-2013-10-13 ==