Roll src/third_party/skia a7682c8c73e4..4f598e8c829a (8 commits) (flutter/engine#6654)

https://skia.googlesource.com/skia.git/+log/a7682c8c73e4..4f598e8c829a


Created with:
  gclient setdep -r src/third_party/skia@4f598e8c829a

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': 'a7682c8c73e4d39b27258dc22822dc05fb1970e7',
+  'skia_revision': '4f598e8c829aeb3300f221cd990e595114dda59a',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: d00f21333b18f3c1d8995b8d24855ec8
+Signature: 6191721212cb6d278c3d6d4d1716dd88
 
 UNUSED LICENSES: