Roll src/third_party/skia 7fd7a8aef06c..6c2b2bb02402 (3 commits) (#13079)

https://skia.googlesource.com/skia.git/+log/7fd7a8aef06c..6c2b2bb02402

git log 7fd7a8aef06c..6c2b2bb02402 --date=short --no-merges --format='%ad %ae %s'
2019-10-11 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-10 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-10 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

Created with:
  gclient setdep -r src/third_party/skia@6c2b2bb02402

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 kjlubick@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=kjlubick@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': '7fd7a8aef06c2f97eaa64a87e33e2a2245acb4e7',
+  'skia_revision': '6c2b2bb02402f48d06536db177c1e9612759d97b',
 
   # 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: 0e82461da181867800a0266deeedf157
+Signature: 58ed47f8a14f0b8026feab4575c85bc8
 
 UNUSED LICENSES: