Remove ViEEncoder::Pause / Start
This cl change so that VideoSendStream::Start adds the stream as a BitrateObserver and VideoSendStream::Stop removes the stream as observer.
That also means that start will trigger a VideoEncoder::SetRate call with the most recent bitrate estimate.
VideoSendStream::Stop will trigger a VideoEncoder::SetRate with bitrate = 0.
BUG=webrtc:5687 b/28636240
Review-Url: https://codereview.webrtc.org/2070343002
Cr-Original-Commit-Position: refs/heads/master@{#13192}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 57c21f9b44621b6415d81d353923eb3975276703
15 files changed
