Roll src/third_party/skia 9339a8a61af0..a4b837971c4b (34 commits) (#9076)

https://skia.googlesource.com/skia.git
/%2Blog/9339a8a61af0..a4b837971c4b

git log 9339a8a61af0955840775dc89f4791a7215c2caf..a4b837971c4b91de29f62909d340cbae33919e33 --date=short --no-merges --format=%ad %ae %s
2019-05-24 brianosman@google.com Revert "Active layer excludes outPoint"
2019-05-23 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-23 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-23 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-23 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-23 bsalomon@google.com Disable two new tests on two bots while errors investigated
2019-05-23 brianosman@google.com Interpreter: Disassemble during execution when TRACE is enabled
2019-05-23 brianosman@google.com Support larger compound types in the interpreter
2019-05-23 jvanverth@google.com Remove Metal Perf bot from MacBook Air
2019-05-22 bungeman@google.com Add test of char to glyph round tripping.
2019-05-23 reed@google.com split RGB into YUV planes
2019-05-23 fmalita@chromium.org [skottie] Clamp seek() to the valid frame range
2019-05-23 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-22 isabelren@google.com Active layer excludes outPoint
2019-05-23 khushalsagar@chromium.org remote fonts: Also send empty paths so they don't count in cache misses.
2019-05-23 michaelludwig@google.com Reland "Track quad type on GrQuad directly"
2019-05-23 bsalomon@google.com Allow swapping out of GrBackendTexture used by SkSurface
2019-05-22 herb@google.com Get bulk advances for SkPDFDevice::internalDrawGlyphRun
2019-05-23 bsalomon@google.com Add GPU implementation of rescaling for SkSurface::asyncRescaleAndRead.
2019-05-23 robertphillips@google.com Revert "Track quad type on GrQuad directly"
2019-05-22 herb@google.com Start using strike specs in PDF.
2019-05-20 michaelludwig@google.com Track quad type on GrQuad directly
2019-05-23 robertphillips@google.com Expand backend allocation API to allow an initialization color (only for GL to start)
2019-05-23 ethannicholas@google.com Reland "remove unused functions in sksl.inc"
2019-05-22 brianosman@google.com Interpreter: Fix scalar -> vector constructors
2019-05-22 egdaniel@google.com Remove viewport from GrGLRenderTarget.
2019-05-23 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 fb8e1b25ad71..8224a58b4749 (5 commits)
2019-05-23 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src aacbdfe80aea..a410b6988151 (444 commits)
2019-05-23 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader f4d2a446cc12..cae8cde7fa65 (12 commits)
2019-05-22 brianosman@google.com Interpreter: Tweak tracing output
2019-05-22 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-23 csmartdalton@google.com Revert "remove unused functions in sksl.inc"
2019-05-22 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-22 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff (csmartdalton@google.com), and stop
the roller if necessary.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '9339a8a61af0955840775dc89f4791a7215c2caf',
+  'skia_revision': 'a4b837971c4b91de29f62909d340cbae33919e33',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

-Signature: 1fddd339b082ea61ee90ee99bdfc18f8
+Signature: 325d99fc98da391f9673b69a1f687fd4
 
 UNUSED LICENSES:
 
@@ -2133,6 +2133,7 @@ FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Cl
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-MotoG4-CPU-Snapdragon617-arm-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-NVIDIA_Shield-GPU-TegraX1-arm64-Debug-All-Android_CCPR.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json
+FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm-Release-All-Android_Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVRG6430-x86-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm-Debug-All-Android_ASAN.json
@@ -5380,6 +5381,8 @@ FILE: ../../../third_party/skia/src/core/SkDescriptor.cpp
 FILE: ../../../third_party/skia/src/core/SkEffectPriv.h
 FILE: ../../../third_party/skia/src/core/SkStrikeInterface.h
 FILE: ../../../third_party/skia/src/core/SkStrikeSpec.h
+FILE: ../../../third_party/skia/src/core/SkYUVMath.cpp
+FILE: ../../../third_party/skia/src/core/SkYUVMath.h
 FILE: ../../../third_party/skia/src/gpu/GrAHardwareBufferUtils.cpp
 FILE: ../../../third_party/skia/src/gpu/GrAHardwareBufferUtils.h
 FILE: ../../../third_party/skia/src/gpu/GrBaseContextPriv.h
@@ -5388,6 +5391,8 @@ FILE: ../../../third_party/skia/src/gpu/GrContextPriv.cpp
 FILE: ../../../third_party/skia/src/gpu/GrContextThreadSafeProxy.cpp
 FILE: ../../../third_party/skia/src/gpu/GrContext_Base.cpp
 FILE: ../../../third_party/skia/src/gpu/GrCpuBuffer.h
+FILE: ../../../third_party/skia/src/gpu/GrDataUtils.cpp
+FILE: ../../../third_party/skia/src/gpu/GrDataUtils.h
 FILE: ../../../third_party/skia/src/gpu/GrGpuBuffer.cpp
 FILE: ../../../third_party/skia/src/gpu/GrGpuBuffer.h
 FILE: ../../../third_party/skia/src/gpu/GrImageContext.cpp