Merge "[automerger skipped] Merge "Add new API for unattended reboot." am: 84072752 am: 89fb4563 am: 459135e0 -s ours" into sc-dev am: 59cfb674 -s ours

am skip reason: Change-Id I59b7ff7afec9846a114ee8d20f14d22cf69f0680 with SHA-1 726fa0a5 is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1592998

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic2d72b891191a7980498bd297c510be8d6eb68cc