Roll Skia from 9eb1679b77af to 4d1a935835ea (5 revisions)

https://skia.googlesource.com/skia.git/+log/9eb1679b77af..4d1a935835ea

2022-01-25 johnstiles@google.com Avoid error cascades when casting out-of-range scalar values.
2022-01-25 herb@google.com combine transformed mask vertex generation
2022-01-25 johnstiles@google.com Remove old test outputs.
2022-01-25 ethannicholas@google.com Added version number to dehydrated SkSL files
2022-01-25 johnstiles@google.com Migrate VerifyStaticTestsAndExpressions analysis pass out.

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 garyq@google.com,robertphillips@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

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': '9eb1679b77af3cda33703897d22380105c2d7076',
+  'skia_revision': '4d1a935835ead32fb697b4423a1557c76db29003',
 
   # 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: 81145e2e6da6dc6b5408dbed3d979706
+Signature: aa5920da23478d0062dbd0206817fa29
 
 UNUSED LICENSES:
 
@@ -6060,6 +6060,7 @@ FILE: ../../../third_party/skia/src/core/SkSLTypeShared.h
 FILE: ../../../third_party/skia/src/core/SkShaderCodeDictionary.cpp
 FILE: ../../../third_party/skia/src/core/SkUniformData.cpp
 FILE: ../../../third_party/skia/src/core/SkUniformData.h
+FILE: ../../../third_party/skia/src/sksl/analysis/SkSLFinalizationChecks.cpp
 ----------------------------------------------------------------------------------------------------
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