Roll Skia from 49983ef4e7de to a70445f40898 (6 revisions) (#20416)

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': '49983ef4e7deb15a8023223c24eca5685fec972a',
+  'skia_revision': 'a70445f40898fd0c48e5ccb86be2403c9ea0897a',
 
   # 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: 5b9c9c9a6a26eb4e93633d8ca45577c1
+Signature: 612aefcff28db0f918d7d75c0aa3d36e
 
 UNUSED LICENSES: