Previously after the first call subsequent attempts to bind the RTP/RTCP ports would fail, since r3754. BUG=1618 Review URL: https://webrtc-codereview.appspot.com/1302007 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3817 4adac7df-926f-26a2-2b94-8c16560cd09d