Roll src/third_party/skia d617d5d29ca5..464eb78e444b (10 commits) (#11444)

https://skia.googlesource.com/skia.git/+log/d617d5d29ca5..464eb78e444b

git log d617d5d29ca5..464eb78e444b --date=short --no-merges --format='%ad %ae %s'
2019-08-26 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-08-26 mtklein@google.com remove MSRTC bots and GN support
2019-08-26 senorblanco@chromium.org Reland "Update DEPS: roll spirv-tools and spirv-headers."
2019-08-26 stani@google.com Revert "Update DEPS: roll spirv-tools and spirv-headers."
2019-08-26 bungeman@google.com Basic changes to get XPS drawing text.
2019-08-26 michaelludwig@google.com Define Usage and image+origin wrapper for image filters
2019-08-26 fmalita@chromium.org Add a colortype conversion bench
2019-08-26 egdaniel@google.com Remove GrGpuTextureCommandBuffer class and rename to GrOpsRenderPass.
2019-08-26 reed@google.com remove unneeded noemptycheck variants of intersect
2019-08-26 herb@google.com Rename SkGlyphCacheState -> RemoteStrike

Created with:
  gclient setdep -r src/third_party/skia@464eb78e444b

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 stani@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=stani@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': 'd617d5d29ca51848c2d4de2db36ca5cf0dfab792',
+  'skia_revision': '464eb78e444be8ac985b229514e44d23d922ae13',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the