Roll src/third_party/skia 1a592c2a3dee..a6e0c2b19c78 (8 commits) (#7138)

https://skia.googlesource.com/skia.git/+log/1a592c2a3dee..a6e0c2b19c78


Created with:
  gclient setdep -r src/third_party/skia@a6e0c2b19c78

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': '1a592c2a3dee68278aeeaaefd50afe9f68a03248',
+  'skia_revision': 'a6e0c2b19c789c67879eeaef83f28251d666a496',
 
   # 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: 34ed0d36082d875337a1bec5ff0b18fa
+Signature: 857d717da36113b59bb11a971288ce5c
 
 UNUSED LICENSES: