Merge "Show floating rotation button in sticky immersive mode if taskbar is...

Merge "Show floating rotation button in sticky immersive mode if taskbar is used" into tm-qpr-dev am: 04fd3493

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19581774



Change-Id: Idb981e6a8c1f12fbc8586dc5d8dd5c90ba7fec23
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>