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 am: 7110d80a am: 274204c2

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

Change-Id: I8ba876d3959c00568a0606df8116f7152b9f8f52