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}