create a separate WebMediaPlayer for URL derived from media stream

media/video/capture/video_capture.h

 // Copyright (c) 2012 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.
 //
 // This file contains abstract classes used for media filter to handle video
 // capture devices.
 
 #ifndef MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_H_
 #define MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_H_
 
@@ skipping 25 matching lines @@
     base::Time timestamp;
 
    private:
     friend class base::RefCountedThreadSafe<VideoFrameBuffer>;
     ~VideoFrameBuffer() {}
 
     DISALLOW_COPY_AND_ASSIGN(VideoFrameBuffer);
   };
 
   // TODO(wjia): add error codes.
+  // TODO(wjia): support weak ptr.
   // Callbacks provided by client for notification of events.
   class MEDIA_EXPORT EventHandler {
    public:
     // Notify client that video capture has been started.
     virtual void OnStarted(VideoCapture* capture) = 0;
 
     // Notify client that video capture has been stopped.
     virtual void OnStopped(VideoCapture* capture) = 0;
 
     // Notify client that video capture has been paused.
@@ skipping 42 matching lines @@
  protected:
   virtual ~VideoCapture() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VideoCapture);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_H_