Roll src/third_party/skia 4ab4e641f151..740f85949db2 (12 commits) (#13336)

https://skia.googlesource.com/skia.git/+log/4ab4e641f151..740f85949db2

git log 4ab4e641f151..740f85949db2 --date=short --no-merges --format='%ad %ae %s'
2019-10-24 herb@google.com Redo removing annoying link messages
2019-10-24 halcanary@google.com SkRemoteGlyphCache  Add tracing to diff canvas
2019-10-24 mtklein@google.com Reland "hide color filters from blitters"
2019-10-24 bsalomon@google.com Type usage improvements in GrTextureProducer classes
2019-10-24 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-24 herb@google.com Fix fuzzer bug in SkDescriptor::isValid
2019-10-24 fmalita@chromium.org Slightly faster hsl_to_rgb stage
2019-10-24 robertphillips@google.com Revert "Allow direct readback for formats in non-ES OpenGL"
2019-10-24 csmartdalton@google.com Don't keep "outResultsFile" open in nanobench
2019-10-24 mtklein@google.com restore _DXDY image shader on ARM
2019-10-24 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-24 bsalomon@google.com Allow direct readback for formats in non-ES OpenGL

Created with:
  gclient setdep -r src/third_party/skia@740f85949db2

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 michaelludwig@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=michaelludwig@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': '4ab4e641f151a2adc9d644d9da42f452c3d4fdff',
+  'skia_revision': '740f85949db2aeb20641c790a8be18512838dfcc',
 
   # 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: f886e42b4431f66b5b529cc0a243e367
+Signature: f190028f7952baaf9c1b331324eb994d
 
 UNUSED LICENSES:
 
@@ -5009,6 +5009,8 @@ FILE: ../../../third_party/skia/modules/skplaintexteditor/src/stringslice.cpp
 FILE: ../../../third_party/skia/modules/skplaintexteditor/src/word_boundaries.cpp
 FILE: ../../../third_party/skia/modules/skplaintexteditor/src/word_boundaries.h
 FILE: ../../../third_party/skia/src/core/SkPixelRefPriv.h
+FILE: ../../../third_party/skia/src/core/SkTextBlobTrace.cpp
+FILE: ../../../third_party/skia/src/core/SkTextBlobTrace.h
 FILE: ../../../third_party/skia/src/gpu/GrPersistentCacheUtils.h
 FILE: ../../../third_party/skia/src/gpu/ccpr/GrSampleMaskProcessor.cpp
 FILE: ../../../third_party/skia/src/gpu/ccpr/GrSampleMaskProcessor.h