Contents of the template class VideoMediaChannelTest copied into VideoMediaChannelTest, the only user. Bug: None Change-Id: Ie43a7c4bc1e85e2df77361f43776d4d902b74cae Reviewed-on: https://webrtc-review.googlesource.com/67400 Commit-Queue: Niels Moller <nisse@webrtc.org> Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22822}