Merge "Support for Terms & Conditions notification" am: c1e52b8003 am: 9a7b2907a9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1557451

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I233420be11a45376bb6771389e440fcd92c94fb5