Roll src/third_party/skia 9bc33b963844..8f42e2467cd9 (1 commits) (#7342)

https://skia.googlesource.com/skia.git/%2Blog/9bc33b963844..8f42e2467cd9

git log 9bc33b9638446e3fa5ab54bcee228e869697659e..8f42e2467cd9db91605323d3517ade57ff0c60c2 --date=short --no-merges --format=%ad %ae %s
2019-01-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 60a50cfcb876..cc37cbf20179 (1 commits)

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 (bungeman@google.com), and stop
the roller if necessary.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '9bc33b9638446e3fa5ab54bcee228e869697659e',
+  'skia_revision': '8f42e2467cd9db91605323d3517ade57ff0c60c2',
 
   # 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: b661b79870d2a0c5b83e4dce261bed53
+Signature: 639c21940158cc0d5240b6aa057f42a3
 
 UNUSED LICENSES: