Merge "Hide fullscreen button in partial only mode" into udc-dev am:...

Merge "Hide fullscreen button in partial only mode" into udc-dev am: edbdb977 am: 7ad61dee am: 2f191b52

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23087459



Change-Id: I7d0d26dc2be6a5715421218ba7177ee1edf27caf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>