c37e72e890
Setting extensions are responsible for a lot of stream tear-downs causing substantial slowdowns in SetRemoteDescription. BUG=1788,4077 R=pthatcher@webrtc.org Review URL: https://webrtc-codereview.appspot.com/40389004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7998 4adac7df-926f-26a2-2b94-8c16560cd09d