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 am: 93f20c6e

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



Change-Id: If9bc00247397d9ea95c001b311f3a63d09098957
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>