- Rename VideoChannel::MuteStream() -> SetVideoSend() (incl. media channel) - Collapse NnChannel::SetChannelOptions() into the above. - Collapse VoiceChannel::SetLocalRenderer into SetAudioSend(). BUG=webrtc:4690 Review URL: https://codereview.webrtc.org/1311533009 Cr-Commit-Position: refs/heads/master@{#9915}