Merge "Tap a media reco from lock screen: - Open the media activity directly...

Merge "Tap a media reco from lock screen: - Open the media activity directly in background to play; - Request to unlock the phone to open the media activity in foreground." into sc-dev am: a0eac6bb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14355243

Change-Id: Ife745551a9020ace6c1018eba0d54f79675df3eb