perkj f0dcfe2c81 Change VideoRtpReceiver to create remote VideoTrack and VideoTrackSource.
This enabled us to be able to remove VideoTrack::GetSink and RemoteVideoCapturer.

Since video frames from the decoder is delivered on a media engine internal thread, VideoBroadCaster must be made thread safe.

BUG=webrtc:5426
R=deadbeef@webrtc.org, pthatcher@webrtc.org

Review URL: https://codereview.webrtc.org/1765423005 .

Cr-Commit-Position: refs/heads/master@{#11944}
2016-03-10 17:32:08 +00:00
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