Roll Skia from 68dbdbdc2e49 to a8378cd12673 (1 revision) (flutter#38422)

https://skia.googlesource.com/skia.git/+log/68dbdbdc2e49..a8378cd12673

2022-12-20 [email protected] Remove legacy getFillPath from SkPaint

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 [email protected],[email protected] 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

Author: skia-flutter-autoroll

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': '68dbdbdc2e49dd03eb10ec7ba1e1f32cd5227d92',
+  'skia_revision': 'a8378cd126739b66216a6d2e3c07bee640a44ad6',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: a8c90259c1f850274c5081956c3346a0
+Signature: 32613ceb63662d723e59224e58ce7fb7
 
 ====================================================================================================
 LIBRARY: etc1