Merge "DO NOT MERGE ANYWHERE Improve logging in BluetoothHeadsetClientCall." into cw-e-dev am: 2e7ecddd5b  -s ours am: 746ea1efe3  -s ours am: b2f0e7f6bc  -s ours
am: c248f6c7ad  -s ours

* commit 'c248f6c7ad8ce315cb71a8b282371a0ddaf29abc':
  DO NOT MERGE ANYWHERE Improve logging in BluetoothHeadsetClientCall.