getUserMedia: handle the device starting status report.

content/browser/renderer_host/media/media_stream_dispatcher_host.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_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 73 matching lines @@
 
   void StoreRequest(int render_frame_id,
                     int page_request_id,
                     const std::string& label);
 
   // IPC message handler: Set if the video capturing is secure.
   void OnSetCapturingLinkSecured(int session_id,
                                  content::MediaStreamType type,
                                  bool is_secure);
 
+  void OnStreamStarted(const std::string& label);
+
   int render_process_id_;
   std::string salt_;
   MediaStreamManager* media_stream_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_