Roll Skia from e89d8ea20b62 to c09761f57605 (1 revision) (#23843)

https://skia.googlesource.com/skia.git/+log/e89d8ea20b62..c09761f57605

2021-01-21 jmbetancourt@google.com [SkottieView] handle calls to setSource after first animation initialization

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 scroggo@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/+doc/master/autoroll/README.md

DEPS

@@ -27,7 +27,7 @@ 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': 'e89d8ea20b6202a65a7059f6549d644d89ec44f6',
+  'skia_revision': 'c09761f57605f408e473a73fbfe25a2636676bfa',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the