Moves media device notification code to chrome/browser

chrome/browser/media_gallery/media_device_notification_window_win.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_SYSTEM_MESSAGE_WINDOW_WIN_H_
-#define CONTENT_BROWSER_SYSTEM_MESSAGE_WINDOW_WIN_H_
+#ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATION_WINDOW_WIN_H_
+#define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATION_WINDOW_WIN_H_
 #pragma once
 
 #include <windows.h>
 
 #include "base/basictypes.h"
-#include "content/common/content_export.h"
 
 typedef LRESULT (*VolumeNameFunc)(LPCWSTR drive,
                                   LPWSTR volume_name,
                                   unsigned int volume_name_len);
+namespace chrome {
 
-class CONTENT_EXPORT SystemMessageWindowWin {
+class MediaDeviceNotificationWindowWin {
  public:
-  SystemMessageWindowWin();
+  MediaDeviceNotificationWindowWin();
   // Only for use in unit tests.
-  explicit SystemMessageWindowWin::SystemMessageWindowWin(
+  explicit MediaDeviceNotificationWindowWin::MediaDeviceNotificationWindowWin(
       VolumeNameFunc volumeNameFunc);
 
-  virtual ~SystemMessageWindowWin();
+  virtual ~MediaDeviceNotificationWindowWin();
 
   virtual LRESULT OnDeviceChange(UINT event_type, DWORD data);
 
  private:
   void Init();
 
   LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
                            WPARAM wparam, LPARAM lparam);
 
   static LRESULT CALLBACK WndProcThunk(HWND hwnd,
                                        UINT message,
                                        WPARAM wparam,
                                        LPARAM lparam) {
-    SystemMessageWindowWin* msg_wnd = reinterpret_cast<SystemMessageWindowWin*>(
-        GetWindowLongPtr(hwnd, GWLP_USERDATA));
+    MediaDeviceNotificationWindowWin* msg_wnd =
+        reinterpret_cast<MediaDeviceNotificationWindowWin*>(
+            GetWindowLongPtr(hwnd, GWLP_USERDATA));
     if (msg_wnd)
       return msg_wnd->WndProc(hwnd, message, wparam, lparam);
     return ::DefWindowProc(hwnd, message, wparam, lparam);
   }
 
   HWND window_;
   VolumeNameFunc volume_name_func_;
 
-  DISALLOW_COPY_AND_ASSIGN(SystemMessageWindowWin);
+  DISALLOW_COPY_AND_ASSIGN(MediaDeviceNotificationWindowWin);
 };
 
-#endif  // CONTENT_BROWSER_SYSTEM_MESSAGE_WINDOW_WIN_H_
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATION_WINDOW_WIN_H_