RTCRtpSender with track behind RuntimeEnabled flag

content/renderer/media/webrtc/webrtc_media_stream_adapter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_ADAPTER_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_ADAPTER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 26 matching lines @@
   ~WebRtcMediaStreamAdapter() override;
 
   bool IsEqual(const blink::WebMediaStream& web_stream) const {
     return web_stream_.GetExtraData() == web_stream.GetExtraData();
   }
 
   webrtc::MediaStreamInterface* webrtc_media_stream() const {
     return webrtc_media_stream_.get();
   }
 
+  const blink::WebMediaStream& web_stream() const { return web_stream_; }
+
  protected:
   // MediaStreamObserver implementation.
   void TrackAdded(const blink::WebMediaStreamTrack& track) override;
   void TrackRemoved(const blink::WebMediaStreamTrack& track) override;
 
  private:
   void AddAudioSinkToTrack(const blink::WebMediaStreamTrack& track);
   void AddVideoSinkToTrack(const blink::WebMediaStreamTrack& track);
 
   const blink::WebMediaStream web_stream_;
 
   // Pointer to a PeerConnectionDependencyFactory, owned by the RenderThread.
   // It's valid for the lifetime of RenderThread.
   PeerConnectionDependencyFactory* const factory_;
 
   scoped_refptr<webrtc::MediaStreamInterface> webrtc_media_stream_;
   std::vector<std::unique_ptr<WebRtcAudioSink>> audio_sinks_;
   std::vector<std::unique_ptr<MediaStreamVideoWebRtcSink>> video_sinks_;
 
   DISALLOW_COPY_AND_ASSIGN (WebRtcMediaStreamAdapter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_ADAPTER_H_