Enable FEC for VideoSendStream.

Test only checks for FEC without NACK. Test for FEC with NACK postponed
until later.

BUG=2230
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2246004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4802 4adac7df-926f-26a2-2b94-8c16560cd09d
3 files changed