am a224f70b: Fix interaction between BluetoothEventLoop and BluetoothService.

Merge commit 'a224f70b1efc29d9698da5b5c143251a43838f2b' into gingerbread-plus-aosp

* commit 'a224f70b1efc29d9698da5b5c143251a43838f2b':
  Fix interaction between BluetoothEventLoop and BluetoothService.