Roll skia 2112df028..1431e5ea6 (4 commits)

https://skia.googlesource.com/skia.git/+log/2112df028..1431e5ea6

2017-07-24 mtklein@chromium.org ok, do not print time or memory use for skipped tests
2017-07-24 brianosman@google.com Quick documentation of tracing support in our tools
2017-07-24 brianosman@google.com Faster, thread-safe implementation
2017-07-24 reed@google.com remove guard for tiling

Change-Id: I7c60ec1f24c88ae07c9dfb4d53d9c1b842ba9e3a
diff --git a/userspace b/userspace
index 81c75d4..c089e1b 100644
--- a/userspace
+++ b/userspace
@@ -417,7 +417,7 @@
     <project name="external/skia.googlesource.com/skia"
              path="third_party/skia"
              remote="https://skia.googlesource.com/skia"
-             revision="2112df028caf651bed28ee3203625b9a57d48333"/>
+             revision="1431e5ea6941a28adcf0d1f20e97dc81f9a500e8"/>
     <project name="third_party/snappy"
              path="third_party/snappy"
              remote="https://fuchsia.googlesource.com/third_party/snappy"