tree eea5ee53370dac528217cc0a3066ba39b2d3e94f
parent 04e0a4ef9a20bf71e0e4103456c2b3d5b7d2b89d
author Alex Deymo <deymo@google.com> 1465007218 -0700
committer Alex Deymo <deymo@google.com> 1465499027 -0700

Implement powerwash on Android.

Powerwash, the name for the equivalent of a factory reset or /data wipe,
can be triggered in Android by writing the desired command to the
recovery command file and rebooting into recovery.

This patch moves the powerwash scheduling/canceling logic to the
HardwareInterface and implements it on Android.

Bug: 28700985
TEST=Called update_engine_client passing POWERWASH=1, BCB is stored up
to offset 832.

(cherry picked from commit fb905d9b8d49f8fe41297c7aba2dd0942f1be311)

Change-Id: I66f9473c10fbe8f56e9000ce3e605b2bee345db8