Roll Skia from 08ea02560710 to 4df5672a5b7f (1 revision) (#25761)

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': '08ea02560710758237a06760a631b72e7357b630',
+  'skia_revision': '4df5672a5b7f6482ffab36e88d727ef99fce99ef',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the