Register the service-to-app callback whenever the service comes up for
BluetoothConnectionCallback. This ensures that if the bluetooth process
dies, the callbacks will be re-established once it comes back up.

Tag: #feature
Bug: 175700972
Test: Manual
Change-Id: I2a20b229fcc1d8f69ccc1b24b62c26ce8155c29f
1 file changed