Add Fade-out/Fade-in animation during output-configuration change.

chrome/browser/ui/webui/options2/chromeos/display_options_handler.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_UI_WEBUI_OPTIONS2_CHROMEOS_DISPLAY_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_DISPLAY_OPTIONS_HANDLER_H_
 
 #include <vector>
 
 #include "chrome/browser/ui/webui/options2/options_ui.h"
@@ skipping 28 matching lines @@
   virtual void OnDisplayRemoved(const gfx::Display& old_display) OVERRIDE;
 
  private:
   // Updates the display section visibility based on the current display
   // configurations.
   void UpdateDisplaySectionVisibility();
 
   // Sends the current display information to the web_ui of options page.
   void SendDisplayInfo();
 
+  // Called when the fade-out animation for mirroring status change is finished.
+  void FadeOutForMirroringFinished(bool is_mirroring);
+
+  // Called when the fade-out animation for secondary display layout change is
+  // finished.
+  void FadeOutForDisplayLayoutFinished(int layout);
+
   // Handlers of JS messages.
   void HandleDisplayInfo(const base::ListValue* unused_args);
   void HandleMirroring(const base::ListValue* args);
   void HandleDisplayLayout(const base::ListValue* args);
 
   DISALLOW_COPY_AND_ASSIGN(DisplayOptionsHandler);
 };
 
 }  // namespace options2
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_DISPLAY_OPTIONS_HANDLER_H_