Merge "Added setAlwaysOn feature" am: 66e56014df am: 0eda082f6a am: 2baabee7bb

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1477323

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I92a8bf54ce320942e83563b5fc16fc7ea6198510