Roll src/third_party/skia 6064ecf7e993..b1ade2a4261e (32 commits)

[skia-flutter-autoroll]

https://skia.googlesource.com/skia.git/+log/6064ecf7e993..b1ade2a4261e

git log 6064ecf..b1ade2a --date=short --no-merges --format='%ad %ae %s'
2019-08-28 bsalomon@google.com Fix spirv-tools include path
2019-08-28 kjlubick@google.com [canvaskit] Fix duplicate gold name
2019-08-28 herb@google.com Cleanups around fRemoteGlyphStateMap
2019-08-28 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update Go deps
2019-08-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 57ad1e1..886698b (7 commits)
2019-08-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 31c682b20741..c96d445dc9eb (397 commits)
2019-08-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 605f863..cde4dd9 (9 commits)
2019-08-28 michaelludwig@google.com Fix flutter roll
2019-08-27 michaelludwig@google.com Revert "Combine snapBackImage and snapSpecial"
2019-08-27 michaelludwig@google.com Add Color4f variant for DrawEdgeAAQuad
2019-08-27 michaelludwig@google.com Revert "Calculate draw bounds in drawEdgeAAImageSet"
2019-08-27 fmalita@chromium.org [skottie] Disable text baseline snapping
2019-08-27 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-08-27 michaelludwig@google.com Combine snapBackImage and snapSpecial
2019-08-27 senorblanco@chromium.org gn format third_party/dawn/BUILD.gn.
2019-08-27 halcanary@google.com SkPlainTextEditor: from experimental to modules
2019-08-27 herb@google.com Check RemoteStrike pointer is still valid to send
2019-08-27 bungeman@google.com Add a way to disable baseline snapping.
2019-08-27 egdaniel@google.com Have visitProxies take a GrTexutreProxy instead of GrSurfaceProxy.
2019-08-27 michaelludwig@google.com Calculate draw bounds in drawEdgeAAImageSet
2019-08-27 csmartdalton@google.com Add renderTasks to the DAG before calling addDependency
2019-08-27 egdaniel@google.com Make sure we use clear load op on GrOpsTask as often as possible.
2019-08-27 michaelludwig@google.com Fix subset errors in blur, matrix, and morphology filters
2019-08-27 senorblanco@chromium.org Dawn: use Skia's copy of vulkan headers.
2019-08-27 senorblanco@chromium.org Add spirv-cross to DEPS.
2019-08-27 senorblanco@chromium.org Dawn: Remove spirv-tools and spirv-headers rules from Dawn build files.
2019-08-27 mtklein@google.com remove unused sk_sp comparison operators
2019-08-27 michaelludwig@google.com Fix long line
2019-08-27 michaelludwig@google.com Revert "gpu: Update GrGLCaps usage of fTextureRectangle with chromium."
2019-08-27 nihohit@gmail.com compile.sh: Use emar in order to bundle libraries.
2019-08-27 mtklein@google.com ->
2019-08-27 kjlubick@google.com [canvaskit] Add sundry APIs and tests

Created with:
gclient setdep -r src/third_party/skia@b1ade2a4261e

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

[skia-flutter-autoroll]

Auto-roller completed checks. About to merge.