Added base::win::InitializeWindowClass() wrapper to make sure that window classes are properly asso…

chrome/browser/media_gallery/media_device_notifications_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 CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATIONS_WINDOW_WIN_H_
 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATIONS_WINDOW_WIN_H_
 #pragma once
 
 #include <windows.h>
 
@@ skipping 20 matching lines @@
   LRESULT CALLBACK WndProc(HWND hwnd,
                            UINT message,
                            WPARAM wparam,
                            LPARAM lparam);
 
   static LRESULT CALLBACK WndProcThunk(HWND hwnd,
                                        UINT message,
                                        WPARAM wparam,
                                        LPARAM lparam);
 
+  // The window class of |window_|.
+  ATOM atom_;
+
+  // The handle of the module that contains the window procedure of |window_|.
+  HMODULE instance_;
+
   HWND window_;
   VolumeNameFunc volume_name_func_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaDeviceNotificationsWindowWin);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_DEVICE_NOTIFICATIONS_WINDOW_WIN_H_