Roll src/third_party/skia e27a503a0a21..76826fc91c0a (9 commits) (#13040)

https://skia.googlesource.com/skia.git/+log/e27a503a0a21..76826fc91c0a

git log e27a503a0a21..76826fc91c0a --date=short --no-merges --format='%ad %ae %s'
2019-10-09 jvanverth@google.com Draw perspective text as paths.
2019-10-09 herb@google.com Introduce SkGlyphPositionRoundingSpec.
2019-10-09 robertphillips@google.com Centralize error checking w/in the GrProgramInfo class
2019-10-09 egdaniel@google.com Add new public api on GrContext for computing image size.
2019-10-09 mtklein@google.com add -f mp4 to skottie_tool
2019-10-09 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-09 robertphillips@google.com Tighten up creation of the GrProgramDesc and remove some unnecessary checks
2019-10-09 kjlubick@google.com [canvaskit] Update to build with emscripten 1.38.47
2019-10-09 bungeman@google.com Retain hints when subsetting for PDF.

Created with:
  gclient setdep -r src/third_party/skia@76826fc91c0a

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 kjlubick@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=kjlubick@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': 'e27a503a0a21af167e6a19d2e5c7b7e1039964bf',
+  'skia_revision': '76826fc91c0abcbd1c8aa4dbc3db4a9d9419e73f',
 
   # 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: 4c71cf95ae0b49dd8e71b0e712598008
+Signature: 1148c355227131325fd7900c08ce17ab
 
 UNUSED LICENSES:
 
@@ -3820,6 +3820,7 @@ FILE: ../../../third_party/skia/src/gpu/GrClientMappedBufferManager.h
 FILE: ../../../third_party/skia/src/gpu/GrCopyRenderTask.cpp
 FILE: ../../../third_party/skia/src/gpu/GrCopyRenderTask.h
 FILE: ../../../third_party/skia/src/gpu/GrImageInfo.h
+FILE: ../../../third_party/skia/src/gpu/GrProgramInfo.cpp
 FILE: ../../../third_party/skia/src/gpu/GrProgramInfo.h
 FILE: ../../../third_party/skia/src/gpu/GrRenderTask.cpp
 FILE: ../../../third_party/skia/src/gpu/GrRenderTask.h