Merge "Update the navbar surface when the nav bar is detached" into udc-dev am: 05f4f569 am: 763da625

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21891001



Change-Id: I0c94f1526ce9b973268c419602f79064a1fbe857
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>