Roll Skia from 42eba20260a8 to 3968ad6301e7 (3 revisions)

https://skia.googlesource.com/skia.git/+log/42eba20260a8..3968ad6301e7

2022-01-25 [email protected] Roll ANGLE from 38deffe40db8 to d6dd0cb52b17 (5 revisions)
2022-01-25 [email protected] Revert "[skslc] Generate .hlsl test output files"
2022-01-25 [email protected] Roll Chromium from 35c05997232d to c1ecb48fe59e (476 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 [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

@@ -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': '42eba20260a85e79248ade41cf646d84c474a9ab',
+  'skia_revision': '3968ad6301e758598f4b39e1001e83309fd9a628',
 
   # 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: b96328081d3a2fbb7162924e3eccbe54
+Signature: 8d3c89d56729ac113daf0c5305aff2dc
 
 UNUSED LICENSES: