Roll src/third_party/skia a1d26a807798..8676929c0a13 (9 commits) (#9416)

https://skia.googlesource.com/skia.git
/%2Blog/a1d26a807798..8676929c0a13

git log a1d26a807798e13291aea700412840ee8ac9bfc5..8676929c0a13560d874e6c274df64f89b0769045 --date=short --no-merges --format=%ad %ae %s
2019-06-21 brianosman@google.com ByteCode: Faster eval in getLocation, add safety for double side-effects
2019-06-21 mtklein@google.com rearrange code,data -> data,code
2019-06-21 fmalita@chromium.org Add SkShaderMaskFilter.h to public header list
2019-06-21 brianosman@google.com ByteCode: Better signature for innerRun, avoid memory stomping
2019-06-19 herb@google.com Simplify intercepts
2019-06-21 fmalita@chromium.org [skottie] Radial swipe effect
2019-06-20 brianosman@google.com ByteCode: Support out params in local function calls
2019-06-20 robertphillips@google.com Cleanup some legacy instantiate calls
2019-06-21 borenet@google.com [infra] Remove stephana@ from OWNERS

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

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

If the roll is causing failures, please contact the current sheriff (bsalomon@google.com), and stop
the roller if necessary.

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': 'a1d26a807798e13291aea700412840ee8ac9bfc5',
+  'skia_revision': '8676929c0a13560d874e6c274df64f89b0769045',
 
   # 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: 3bddac012e193e0e66a73e50f6567362
+Signature: 840ca5e25666b9cee522981c966b4e44
 
 UNUSED LICENSES:
 
@@ -5452,6 +5452,7 @@ FILE: ../../../third_party/skia/modules/skottie/src/effects/GradientEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/LevelsEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/LinearWipeEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/MotionTileEffect.cpp
+FILE: ../../../third_party/skia/modules/skottie/src/effects/RadialWipeEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/TintEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/TransformEffect.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/effects/TritoneEffect.cpp