Adding REMB to receive stream configuration, the send side will always
react to incoming REMB for now.

Adding a test to verify the receive side is generating RTCP REMB and
will follow up with a send side test as soon as the bitrate stats are
wired up for the new API.

TEST=See above.
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5779004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5286 4adac7df-926f-26a2-2b94-8c16560cd09d
5 files changed