21312 Roll Skia from 371fde549e35 to 1a49a5334c36 (1 revision) (cla: yes, waiting for tree to go green)

21313 [web] Add canUpdateAsMatch to PersistedPlatformView. (cla: yes, waiting for tree to go green)

21315 Roll Dart SDK from c660a695266a to c61a0818e4bd (1 revision) (cla: yes, waiting for tree to go green)

21317 Roll Fuchsia Linux SDK from 2rXyLF0YK… to VgNGzw-DQ… (cla: yes, waiting for tree to go green)