23958 Roll Skia from 98c990eba005 to f661ec788b14 (3 revisions) (cla: yes, waiting for tree to go green)

23959 Roll Dart SDK from 38c2cddbe277 to 15dfe858c4a6 (1 revision) (cla: yes, waiting for tree to go green)

platform-android - 126 pull request(s)

20330 Minor documentation details/breadcrumbs (cla: yes, platform-android)

20473 Limit heap growth on Android (cla: yes, platform-android)

20496 Migration to PlatformDispatcher and multi-window (cla: yes, platform-android, platform-ios)

20868 Deprecate Android v1 embedding classes (cla: yes, platform-android, waiting for tree to go green)