tree 0161526d9a0aefa33137da2db9bb4d8156d3a220
parent c49534cf097f75421e56d1b6a22112ef942165c2
author Jack He <siyuanh@google.com> 1497667438 -0700
committer Jack He <siyuanh@google.com> 1498607589 -0700

Add APIs to get remote device's battery level (1/2)

* Add BluetoothDevice.getBatteryLevel() API to retreive battery level
  information of remote device
* Add BluetoothDevice.ACTION_BATTERY_LEVEL_CHANGED intent to notify user
  that remote device's battery level has changed

Bug: 35874078
Test: make, pair with devices and use them
Change-Id: I41051ee25383f5f3a1e505aef6f8c526385f58bd