Media Related changes for TabCapture API

content/public/browser/media_observer.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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_MEDIA_OBSERVER_H_
 #define CONTENT_PUBLIC_BROWSER_MEDIA_OBSERVER_H_
 
 #include "content/public/common/media_stream_request.h"
 
 namespace media {
@@ skipping 31 matching lines @@
       int render_process_id,
       int render_view_id,
       const content::MediaStreamDevices& devices) = 0;
 
   // Called when the opened capture devices are closed.
   virtual void OnCaptureDevicesClosed(
       int render_process_id,
       int render_view_id,
       const content::MediaStreamDevices& devices) = 0;
 
+  // Called when a media request changes state.
+  virtual void OnMediaRequestStateChanged(
+      int render_process_id,
+      int render_view_id,
+      const content::MediaStreamDevice& device,

[jam, 2012/10/12 17:21:41]

nit: here and below (and also throughout the file) don't add "content::"

[justinlin, 2012/10/12 20:04:20]

Done.

+      const content::MediaStreamRequest::RequestState state) = 0;
+
  protected:
   virtual ~MediaObserver() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_MEDIA_OBSERVER_H_