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: 23ebb6a9 am: 6b7f5c32

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



Change-Id: I4184342977e24b8af715acb5a3af9d3d4e0058a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>