Begin adding support for tab mirroring via the MediaStream audio/video capturing

content/renderer/media/media_stream_dispatcher.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_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 134 matching lines @@
       const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler,
       EnumerationState* state);
 
   // Used for DCHECKs so methods calls won't execute in the wrong thread.
   scoped_refptr<base::MessageLoopProxy> main_loop_;
 
   int next_ipc_id_;
   typedef std::map<std::string, Stream> LabelStreamMap;
   LabelStreamMap label_stream_map_;
 
-  EnumerationState audio_enumeration_state_;
-  EnumerationState video_enumeration_state_;
+  EnumerationState enumeration_state_[content::NUM_MEDIA_STREAM_DEVICE_TYPES];
 
   // List of calls made to GenerateStream that has not yet completed.
   typedef std::list<Request> RequestList;
   RequestList requests_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcher);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_H_