Roll Skia from 72f403c343dc to a3a9da74308f (1 revision) (#19110)

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': '72f403c343dc603ae6593145fcf1b052baa2df00',
+  'skia_revision': 'a3a9da74308f511955e7749c6137c64da60bf134',
 
   # 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: 91254bf821e0025618bf70c265e7e7b9
+Signature: 6396882438d1f6ae267766179ad398a9
 
 UNUSED LICENSES: