18517 Roll Dart SDK from 7706afbcf5c6 to 3a764b7ae4d9 (33 revisions) (cla: yes, waiting for tree to go green)

18518 Roll Skia from 5e6d789ce47c to 3bcb7bb01b82 (1 revision) (cla: yes, waiting for tree to go green)

18519 Send platformResolvedLocale from iOS embedder (cla: yes, waiting for tree to go green)

18521 Add tests for StandardMethodCodec (cla: yes, waiting for tree to go green)

18522 Roll Skia from 3bcb7bb01b82 to 34eee0d9fc85 (1 revision) (cla: yes, waiting for tree to go green)