switch to DVLOG from VLOG, and move struct definition to cc file

content/renderer/media/media_stream_dispatcher.h

 // Copyright (c) 2011 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 34 matching lines @@
   // Get the video session_id given a label. The label identifies a stream.
   // index is the index in the video_device_array of the stream.
   int video_session_id(const std::string& label, int index);
   // Returns an audio session_id given a label and an index.
   int audio_session_id(const std::string& label, int index);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(MediaStreamDispatcherTest, Basic);
   FRIEND_TEST_ALL_PREFIXES(MediaStreamDispatcherTest, TestFailure);
 
-  struct Request {
-    Request(MediaStreamDispatcherEventHandler* handler,
-            int request_id,
-            int ipc_request)
-        : handler(handler),
-          request_id(request_id),
-          ipc_request(ipc_request) {
-    }
-    MediaStreamDispatcherEventHandler* handler;
-    int request_id;
-    int ipc_request;
-  };
+  struct Request;
 
   // Private class for keeping track of opened devices and who have
   // opened it.
-  struct Stream {
-    Stream();
-    ~Stream();
-    MediaStreamDispatcherEventHandler* handler;
-    media_stream::StreamDeviceInfoArray audio_array;
-    media_stream::StreamDeviceInfoArray video_array;
-  };
+  struct Stream;
 
   // Messages from the browser.
   virtual bool OnMessageReceived(const IPC::Message& message);
   void OnStreamGenerated(
       int request_id,
       const std::string& label,
       const media_stream::StreamDeviceInfoArray& audio_array,
       const media_stream::StreamDeviceInfoArray& video_array);
   void OnStreamGenerationFailed(int request_id);
   void OnVideoDeviceFailed(const std::string& label, int index);
   void OnAudioDeviceFailed(const std::string& label, int index);
 
   int next_ipc_id_;
   typedef std::map<std::string, Stream> LabelStreamMap;
   LabelStreamMap label_stream_map_;
 
   // 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_