Roll Skia from 888c5d3e57eb to 51b74afb84d4 (12 revisions) (#22746)

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': '888c5d3e57eb197c4d9abcc35966d9bc97f38d1d',
+  'skia_revision': '51b74afb84d4150f67668e36e95563b39cb26b5b',
 
   # 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: 384d53c4b93c9153f28dfe6e65baf75d
+Signature: 5fc440aa9765bd7a937926376ed2d1c2
 
 UNUSED LICENSES: