Merge changes I67dc51b5,I6546759a,I258629e1,I74cc61fd,I74b2b757, ... into udc-dev-plus-aosp
* changes:
fix(non linear font scaling): fix test timeout flakiness
Fix flaky tests
Fixes @Nullable issues SystemUI-tests
Fixes @Nullable issues in System UI and WMShell.
Fix more kotlin nullable errors in services.permission
Fix runtime kotlin nullable error in ScreenshotDetectionControllerTest
Fix NullPointerException in ControlsRequestDialogTest
Fix tests broken by @NonNull annotation fix
Fixes more @Nullable issues in System UI and WMShell.