Roll src/third_party/skia 078e8faa26d8..47af12aa8331 (22 commits) (#13987)

https://skia.googlesource.com/skia.git/+log/078e8faa26d8..47af12aa8331

git log 078e8faa26d8..47af12aa8331 --date=short --no-merges --format='%ad %ae %s'
2019-11-22 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-22 bsalomon@google.com Test texture domain effect with local matrix.
2019-11-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 b8e748be6b94..4c7db77e0185 (21 commits)
2019-11-22 halcanary@google.com LICENSE file: clean up
2019-11-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader f2c9ce1e08ed..c8d4d4254ca1 (15 commits)
2019-11-22 jvanverth@google.com Add checks for TextureSampler count in text GeoProcs.
2019-11-22 ethannicholas@google.com SkSL now supports functions defined in sksl_gpu.inc
2019-11-22 reed@google.com Revert "Reland "Revert "Use flat version of path-direction enum"""
2019-11-22 robertphillips@google.com Add utility for creating test-only GrProgramInfos
2019-11-22 kjlubick@google.com [skolo] Remove internal hardware 2
2019-11-22 reed@google.com remove LEGACY_CONVEXITY code -- no more clients
2019-11-22 michaelludwig@google.com GrQuadPerEdgeAA::Tessellator owns GrVertexWriter
2019-11-22 michaelludwig@google.com Move textureop fallback code out of GrRTC and into AddTextureSetOps
2019-11-22 rmistry@google.com [G3 compile bot] Add comment to CL when there is an interesting failure
2019-11-22 mtklein@google.com rough unit test support for FM
2019-11-22 jvanverth@google.com Rename GLRTFBOIDIs0 to WrapsSwapchainSurface and use for Metal.
2019-11-22 nigeltao@google.com Optimize SkWuffsCodec's sk_bzero calls
2019-11-22 robertphillips@google.com Update bezier_*_effects GMs to not use rand
2019-11-22 halcanary@google.com Documentation: Cq-Include-Trybots
2019-11-22 benjaminwagner@google.com Add Docker-based GCC Test tasks
2019-11-22 kjlubick@google.com [canvaskit] Add SkContourMeasure
2019-11-22 reed@google.com Reland "Revert "Use flat version of path-direction enum""

Created with:
  gclient setdep -r src/third_party/skia@47af12aa8331

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC robertphillips@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Bug: None
Tbr: robertphillips@google.com

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': '078e8faa26d8b1f33a92e57f587be011150d1776',
+  'skia_revision': '47af12aa83318a48ba27f4ac426e94cbffc6a7c3',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the