Roll src/third_party/skia d945698c5dfa..4f87e2255b8a (2 commits) (#6446)

https://skia.googlesource.com/skia.git/+log/d945698c5dfa..4f87e2255b8a


Created with:
  gclient setdep -r src/third_party/skia@4f87e2255b8a

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': 'd945698c5dfa8e78c05da0a3e1730da9d95d33db',
+  'skia_revision': '4f87e2255b8adf55c35d3de1c5518a26afb77185',
 
   # 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

-Signature: 41bf8136f0b894643d51694406611d62
+Signature: 5c5872d5f475d342850f4cb4992157fe
 
 UNUSED LICENSES: