Roll src/third_party/skia 641d2b6e62d9..8b5cf82dca37 (1 commits) (flutter/engine#9444)

https://skia.googlesource.com/skia.git
/%2Blog/641d2b6e62d9..8b5cf82dca37

git log 641d2b6e62d9609aa4c9ce9b674e6a99dae09fe4..8b5cf82dca3797066e5acc212381a0c8bd3debd9 --date=short --no-merges --format=%ad %ae %s
2019-06-22 mtklein@google.com add SkVM_Overhead bench, simple improvements

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': '641d2b6e62d9609aa4c9ce9b674e6a99dae09fe4',
+  'skia_revision': '8b5cf82dca3797066e5acc212381a0c8bd3debd9',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 0e93b181fdb20a44138a80685f5ba45d
+Signature: dcd702f678af7772e6469ab8d8eaa8da
 
 UNUSED LICENSES: