Reason for revert: Breaks remoting::protocol::WebrtcVideoCapturerAdapter::Pause' See https://build.chromium.org/p/chromium.webrtc.fyi/builders/Win%20Builder/builds/3689/steps/compile/logs/stdio Original issue's description: > Removed unused cricket::VideoCapturer methods: > > void UpdateAspectRatio(int ratio_w, int ratio_h); > void ClearAspectRatio(); > ool Pause(bool paused); > Restart(const VideoFormat& capture_format); > MuteToBlackThenPause(bool muted); > IsMuted() const > set_square_pixel_aspect_ratio > bool square_pixel_aspect_ratio() > > This cl also remove the use of messages and posting of state change. > Further more - a thread checker is added to make sure methods are called on only one thread. Construction can happen on a separate thred. > It does not add restrictions on what thread frames are delivered on though. > > There is more features in VideoCapturer::Onframe related to screen share in ARGB that probably can be cleaned up in a follow up cl. > > BUG=webrtc:5426 > > Committed: https://crrev.com/e9c0cdff2dad2553b6ff6820c0c7429cb2854861 > Cr-Commit-Position: refs/heads/master@{#11773} TBR=magjed@webrtc.org,pthatcher@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:5426 Review URL: https://codereview.webrtc.org/1740963002 Cr-Commit-Position: refs/heads/master@{#11777}