Merge "Remove clip adjustment to fix bottom screen flicker issue. Add a...

Merge "Remove clip adjustment to fix bottom screen flicker issue. Add a flicker test to verify animation background is no longer visible through the transition after the fix." into udc-qpr-dev am: 3dfd9e6c am: 6abf7ba9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23660587



Change-Id: Ie606e3be4a0d4a60597b8b85d1805c9028956f1a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>