Roll Skia from 452369182f6e to f2efb80bc316 (4 revisions) (flutter#22750)

https://skia.googlesource.com/skia.git/+log/452369182f6e..f2efb80bc316

2020-11-25 [email protected] Clamp really big recording bounds to safe ints
2020-11-25 [email protected] Preserve dithering for SkImageFilters::Shader
2020-11-25 [email protected] Remove accidentally-commited conflict markers.
2020-11-25 [email protected] Add early-outs to buildCandidateList.

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] 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

Author: skia-flutter-autoroll

DEPS

@@ -26,7 +26,7 @@ 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': '452369182f6e8e6342272932265988021777b73f',
+  'skia_revision': 'f2efb80bc3166c334b6b0e01283eba4fd0c89f41',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 5fc440aa9765bd7a937926376ed2d1c2
+Signature: 338061e82cd7ec18f061642323f2c9cc
 
 UNUSED LICENSES: