Roll Skia from 7cae908221a2 to a6748aa80272 (3 revisions) (#25231)

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': '7cae908221a27ed1661b206e601fdccc6ce676e2',
+  'skia_revision': 'a6748aa802721cdf9d1ba40ca351e41010a1a708',
 
   # 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: b3f956fc3b82e318f752152150e81f5b
+Signature: fa707f75384dc9459323c21e0249783e
 
 UNUSED LICENSES: