[WebKit] Allow Password field to trigger focus.

By default, password fields do not use input method in webkit.
However, we need this to be enabled for the virtual keyboard to
be triggered. This is a known issue documented:
https://bugs.webkit.org/show_bug.cgi?id=34285

This changelist temporarily enables input method for passwords.

Bug: SEC-129
Test: built webkit and verified interaction with pages.
Change-Id: Id7354b6bf138a0e7320a58a6383330de0413e076
diff --git a/Source/WebCore/html/PasswordInputType.cpp b/Source/WebCore/html/PasswordInputType.cpp
index af2e38c..5178215 100644
--- a/Source/WebCore/html/PasswordInputType.cpp
+++ b/Source/WebCore/html/PasswordInputType.cpp
@@ -66,7 +66,10 @@
 {
     // Input methods are disabled for the password field because otherwise
     // anyone can access the underlying password and display it in clear text.
-    return false;
+
+    // STOPSHIP(SEC-129): Remove once alternative method to detecting input
+    // focus is available.
+    return true;
 }
 
 bool PasswordInputType::shouldResetOnDocumentActivation()