tree 92e62f200c09a60da6134c1fa7dde41e5b045070
parent acc9668235027bfde78a31c45421bca5336a454e
author jackqdyulei <jackqdyulei@google.com> 1486682956 -0800
committer jackqdyulei <jackqdyulei@google.com> 1488993636 -0800

Add BatterySaverPolicy for power save mode

The BatterySaverPolicy is designed to consolidate all battery saver
knobs into a central location. Usually it is consistent to
mLowPowerModeEnabled unless it gets different data for specific
service. By adding these knobs, we can effectively tune the battery
saver.

This cl sets up the framework for BatterySaverPolicy and updates
following service to get battery saver data from BatterySaverPolicy

1. GnssLocationProvider
2. VibratorService
3. WindowManagerService
4. BackupManagerService
5. SoundTriggerService
6. NetworkPolicyManagerService

Screen brightness will come in a following cl.

Bug: 34693888
Test: FrameworksServicesTests

Change-Id: I6b040e93391614b44d136a485faa4a332c396e51