commit 1a40c4f4daf2cdfba3f67383c726f93b85a98b00
author Tyler Gunn <tgunn@google.com> Thu Apr 14 14:29:45 2016 -0700
committer Tyler Gunn <tgunn@google.com> Thu Apr 14 14:29:45 2016 -0700
tree 6ad75d10c0cf80bb4ee2aa7e7f7d6a725196ad4c
parent a153e6660396636ee715b173164a0e1e6333a3ec

Improvements to external call handling.

Add onExternalCallChanged listener in Call to report when a call switches
between being external and not.
In CallAudioManager, BluetoothPhoneServiceImpl, HeadsetMediaButton, and
PhoneStateBroadcaster, listen to changes in the external call state.

This ensures that when a call becomes external or a call becomes
non-external that the various modules updates themselves appropriately.

Bug: 28179159
Change-Id: I44bc0b94f185c66aeddb68549223533249bb0b62