Merge "Track order of visible media players" into tm-qpr-dev am: 3009a9e1 am: 51155453

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20063735



Change-Id: I87566219db3178a42a20f460e4b431eb5073c537
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>