8033 Add missing values to semantics action enums (cla: yes)

8034 Android Embedding PR 16: Add touch support to FlutterView. (cla: yes)

8036 add lint script for Android with baseline (cla: yes)

8041 [platform_views]remove an unnecessary extra statement. (cla: yes)

8043 Minor cleanups to CONTRIBUTING.md (cla: yes)

8044 Improve elevation bounds for physical shape layers (cla: yes)

8045 Merge only gpu and platform threads for platform views, fix deadlock. (cla: yes)

8046 Fix weak pointer use violations in shell and platform view. (cla: yes)

8047 Add clang static analysis support to gn wrapper (cla: yes)