Roll Skia from ac1ded033136 to a25c0619b5ef (2 revisions) (#21989)

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': 'ac1ded0331360d825d59812b75d5eebc25a7fa7a',
+  'skia_revision': 'a25c0619b5ef81c32e127722660cd38753a6bcd4',
 
   # 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: 6eda764c8f865c27dbd3344f2c0d854d
+Signature: 9397fd4f04f6461954e5e78211c04873
 
 UNUSED LICENSES: