views: Add OnEnabledChanged() method to View class.

views/controls/native_control.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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_NATIVE_CONTROL_H_
 #define VIEWS_CONTROLS_NATIVE_CONTROL_H_
 #pragma once
 
 #include <windows.h>
 
 #include "ui/base/keycodes/keyboard_codes.h"
@@ skipping 19 matching lines @@
      TRAILING };
 
   NativeControl();
   virtual ~NativeControl();
 
   virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
   virtual void Layout();
 
   // Overridden to properly set the native control state.
   virtual void SetVisible(bool f);
-  virtual void SetEnabled(bool enabled);
+  virtual void OnEnabledChanged();
 
   // Overridden to do nothing.
   virtual void OnPaint(gfx::Canvas* canvas);
 
  protected:
   friend class NativeControlContainer;
 
   // Overridden by sub-classes to create the windows control which is wrapped
   virtual HWND CreateNativeControl(HWND parent_container) = 0;
 
@@ skipping 65 matching lines @@
                                                WPARAM w_param, LPARAM l_param);
 
   NativeControlContainer* container_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeControl);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_NATIVE_CONTROL_H_