tree 25c89a6308fc456aacbbf883517247ae2af517c2
parent 8fc8f39b623e024ec015d1fef06a0a3013835946
author Tao Bao <tbao@google.com> 1556562196 -0700
committer Tao Bao <tbao@google.com> 1556565145 -0700

Consolidate the codes that handle reboot/shutdown.

Test: Choose `Reboot system now`, `Power off`, `Reboot to bootloader`
      from recovery UI respectively.
Test: `adb reboot recovery` while under sideload mode.
Change-Id: I0f3d55b80b472178ea4f6970b29cd9df0778b639