Roll Skia from 759ff5b38c23 to 51ab694cbb86 (4 revisions) (#22949)

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': '759ff5b38c23d727baefe3de370a7ef0cc055285',
+  'skia_revision': '51ab694cbb860c51a3677033090d0897e7078cd6',
 
   # 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: df5fa01ad4dd95dfe6d0baf23f42f231
+Signature: e3db85be43cad652a80ed04d5c3b394e
 
 UNUSED LICENSES: