Enabling access notifications for login wizard

chrome/browser/chromeos/login/update_view.h

 // Copyright (c) 2010 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_CHROMEOS_LOGIN_UPDATE_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_VIEW_H_
 #pragma once
 
 #include "views/view.h"
 
@@ skipping 34 matching lines @@
   void ShowManualRebootInfo();
 
   // Whether curtain window with throbber and label in the center should
   // be shown.
   void ShowCurtain(bool show_curtain);
 
   // views::View implementation:
   virtual void Layout();
   virtual bool AcceleratorPressed(const views::Accelerator& a);
 
+ protected:
+  // views::View implementation:
+  virtual void ViewHierarchyChanged(bool is_add,
+                                    views::View* parent,
+                                    views::View* child);
+
  private:
   // Creates Label control and adds it as a child.
   void InitLabel(views::Label** label);
 
   // Updates visibility of the elements.
   void UpdateVisibility();
 
   // Keyboard accelerator to allow cancelling update by hitting escape.
   views::Accelerator escape_accelerator_;
 
@@ skipping 18 matching lines @@
   chromeos::ScreenObserver* observer_;
   // Update controller.
   chromeos::UpdateController* controller_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_VIEW_H_