mozilla-b2g/gaia — pull request #6644 by arcturus (2012-11-27 11:20:27+00:00)
Title: Bug 809704 - [Dialer] can using headset button to answer/hangup the phone call

Includes a bit of refactoring in the postMessage to the callscreen to pass messages from bluetooth and headset

r=@etiennesegonzac