15331 Revert “Add a deprecation javadoc note to the old FlutterActivity” (cla: yes)

15343 Add support for Increase Contrast on iOS (accessibility, affects: framework, cla: yes, platform-ios, waiting for tree to go green)

15360 Re-land “Use ELF for Dart AOT snapshots on Fuchsia. #13896” (cla: yes)

15370 Revert “Add support for on/off switch labels when built on iOS 13.” (cla: yes)

15372 More efficient decoding for down-sampled Flutter images using cache(Width

Height) (cla: yes)

15373 Roll fuchsia/sdk/core/linux-amd64 from _gFH2… to 75iyW… (autoroller: commit, cla: yes)