Roll Skia from fc31f43cc40a to 3c6eb76a683a (1 revision) (#39280)

https://skia.googlesource.com/skia.git/+log/fc31f43cc40a..3c6eb76a683a

2023-01-31 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 0cde45b7cbcc to 786d237f39f1 (13 revisions)

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 jamesgk@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

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/main/autoroll/README.md

DEPS

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': 'fc31f43cc40abc90d09cb11c220a54cd70211b70',
+  'skia_revision': '3c6eb76a683a9bf524b7bdaa3c6cb6577d248e77',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.