Merge "Prevent media controls with no title" into udc-dev am: 910e30bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23152784



Change-Id: I3ae771598571e0562bcf9a5b4066ab749853576f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>