views: Add OnEnabledChanged() method to View class.

views/controls/button/custom_button.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 VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 #define VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 #pragma once
 
+#include "ui/base/animation/animation_delegate.h"
 #include "views/controls/button/button.h"
-#include "ui/base/animation/animation_delegate.h"
 
 namespace ui {
 class ThrobAnimation;
 }
 
 namespace views {
 
 // A button with custom rendering. The common base class of ImageButton and
 // TextButton.
 // Note that this type of button is not focusable by default and will not be
@@ skipping 47 matching lines @@
   }
 
   // Returns true if the mouse pointer is over this control.  Note that this
   // isn't the same as IsHotTracked() because the mouse may be over the control
   // when it's disabled.
   bool IsMouseHovered() const;
 
   // Overridden from View:
   virtual void SetHotTracked(bool flag) OVERRIDE;
   virtual bool IsHotTracked() const OVERRIDE;
-  virtual void SetEnabled(bool enabled) OVERRIDE;
+  virtual void OnEnabledChanged() OVERRIDE;
   virtual bool IsEnabled() const OVERRIDE;
   virtual std::string GetClassName() const OVERRIDE;
   virtual bool OnMousePressed(const MouseEvent& event) OVERRIDE;
   virtual bool OnMouseDragged(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseCaptureLost() OVERRIDE;
   virtual void OnMouseEntered(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseExited(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseMoved(const MouseEvent& event) OVERRIDE;
   virtual bool OnKeyPressed(const KeyEvent& event) OVERRIDE;
@@ skipping 45 matching lines @@
 
   // See description above setter.
   bool request_focus_on_press_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomButton);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_