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: f382b873 am: 324c572d

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



Change-Id: I4431e1c5efb4396443da7b949d1ecc6d788f4c8d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>