commit d73afaeb1c4c64ddad94e696a0fd88147888dee1
author Keun-young Park <keunyoung@google.com> Fri Apr 08 20:03:32 2016 -0700
committer Keun-young Park <keunyoung@google.com> Fri Apr 08 21:27:57 2016 -0700
tree 9aa75571b5d0c758a6e5d084b069c77275754ef1
parent 6eab4de655149b76d5405a5bffe5dd44785d8b00

add audio mute after display off

- Add SystemStateControllerService to control
  system behavior during power state transition.
- For now, only mute audio when display is turned off.
- Audio muting is currently done by focus but should
  be done via mute state in audio focus vehicle hal later.
- also fixed powerOn notification bug: send it whenever
  there is display state change. also fixed wrong display
  state check before sending it.

bug: 28018362
Change-Id: I786cadbb59e89ff880e24d37245c904db1904dd6