Roll src/third_party/skia b3956dc6ba6a..fff996c117c1 (10 commits) (#10133)

https://skia.googlesource.com/skia.git
/compare/b3956dc6ba6a..fff996c117c1

git log b3956dc6ba6a71c399451c072909bad9de80585c..fff996c117c1ebff3e732d9a7884cf3cc9a43008 --date=short --no-merges --format=%ad %ae %s
2019-07-25 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader ec63fbe9c453..ec3039253ab8 (1 commits)
2019-07-24 rmistry@google.com [perf_skottiewasm_lottieweb] Add new bots for LottieWeb_Canvas
2019-07-24 jvanverth@google.com Return nil on SkSL to program failure in Metal.
2019-07-24 reed@google.com add copytable method to typefaces
2019-07-24 jvanverth@google.com Fix analytic shadows when rotated 180 degrees.
2019-07-18 halcanary@google.com gm: add some overrides
2019-07-18 halcanary@google.com gm: simplify several onName
2019-07-24 csmartdalton@google.com Add a workaround for PowerVRRogue to never disable color writes
2019-07-24 csmartdalton@google.com Add a gm for the labyrinth bug
2019-07-24 brianosman@google.com Skip compositing_images benches on GTX660 and Nexus5x Vulkan Perf bots

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 (borenet@google.com), and stop
the roller if necessary.

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': 'b3956dc6ba6a71c399451c072909bad9de80585c',
+  'skia_revision': 'fff996c117c1ebff3e732d9a7884cf3cc9a43008',
 
   # 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: 60ba0f7ab73501321440dc0fe951591d
+Signature: 6c0927af5ef802917dc2b8aefd67f47a
 
 UNUSED LICENSES:
 
@@ -1501,6 +1501,7 @@ FILE: ../../../third_party/skia/infra/bots/recipes/infra.expected/infra_tests.js
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-NVIDIA_Shield-GPU-TegraX1-arm64-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_NoGPUThreads.json
+FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5x-GPU-Adreno418-arm64-Release-All-Android_Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus7-CPU-Tegra3-arm-Debug-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-Android-Clang-P30-GPU-MaliG76-arm64-Release-All-Android_Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf.expected/Perf-ChromeOS-Clang-ASUSChromebookFlipC100-GPU-MaliT764-arm-Release-All.json
@@ -1530,6 +1531,8 @@ FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/Pe
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/Perf-Debian9-Clang-NUC7i5BNK-GPU-IntelIris640-x86_64-Release-All-SkottieTracing.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/skottietracing_parse_trace_error.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottietrace.expected/skottietracing_trybot.json
+FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/lottie_web_canvas_perf.json
+FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/lottie_web_canvas_perf_trybot.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/lottie_web_perf.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/lottie_web_perf_trybot.json
 FILE: ../../../third_party/skia/infra/bots/recipes/perf_skottiewasm_lottieweb.expected/skottie_wasm_perf.json
@@ -4695,6 +4698,7 @@ FILE: ../../../third_party/skia/experimental/xform/SkXform.cpp
 FILE: ../../../third_party/skia/experimental/xform/SkXform.h
 FILE: ../../../third_party/skia/experimental/xform/XContext.cpp
 FILE: ../../../third_party/skia/gm/crbug_918512.cpp
+FILE: ../../../third_party/skia/gm/labrynth.cpp
 FILE: ../../../third_party/skia/gm/preservefillrule.cpp
 FILE: ../../../third_party/skia/gm/tilemodes_alpha.cpp
 FILE: ../../../third_party/skia/src/gpu/GrPersistentCacheUtils.h