GoogleChrome/webrtc — pull request #218 by fippo (2014-11-16 01:20:35+00:00)
Title: data channel sample creates an audio-mline

the data channel sample creates an extra audio m-line which isn't necessary.

Needs to be changed again in the future when https://code.google.com/p/webrtc/issues/detail?id=3282 is everywhere (FF 33 seems to support the RTCOfferOptions already)