Merge "Do not apply letterbox when entering PiP" into udc-dev am: cceba8e2...

Merge "Do not apply letterbox when entering PiP" into udc-dev am: cceba8e2 am: 44b2dce2 am: 01aedbd5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23628060



Change-Id: I8920358f92ba9f7af2342cc8b2c6e0374c62dc89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>