commit c8f952deaae5eccadf218bb0300ee49b50a87ce8
author perkj <perkj@webrtc.org> Wed Mar 23 07:33:56 2016
committer Commit bot <commit-bot@chromium.org> Wed Mar 23 07:34:01 2016
tree 39528137ec63c2ee6c7223ade36584c4e971110f
parent 8549ed763802fdb8d100b5742af27f9875d0d0aa

Propagate MediaStreamSource state to video tracks the same way as audio.
Also removes unused track states kLive and kFailed.
Since this also required a Video source to exist in all unit tests that create a track, a FakeVideoTrackSource is added and used in tests.

BUG=webrtc:5426

Review URL: https://codereview.webrtc.org/1790633002

Cr-Commit-Position: refs/heads/master@{#12098}

webrtc/api/videotrack.h

diff --git a/webrtc/api/videotrack.h b/webrtc/api/videotrack.h
index 36b03b8..3835d2c 100644
--- a/webrtc/api/videotrack.h
+++ b/webrtc/api/videotrack.h
@@ -22,7 +22,8 @@
 namespace webrtc {
 
 class VideoTrack : public MediaStreamTrack<VideoTrackInterface>,
-                   public rtc::VideoSourceBase {
+                   public rtc::VideoSourceBase,
+                   public ObserverInterface {
  public:
   static rtc::scoped_refptr<VideoTrack> Create(
       const std::string& label,
@@ -43,6 +44,9 @@
   ~VideoTrack();
 
  private:
+  // Implements ObserverInterface. Observes |video_source_| state.
+  void OnChanged() override;
+
   rtc::ThreadChecker thread_checker_;
   rtc::scoped_refptr<VideoTrackSourceInterface> video_source_;
 };