views: Add OnEnabledChanged() method to View class.

views/controls/native_control_win.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_NATIVE_CONTROL_WIN_H_
 #define VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 19 matching lines @@
                               WPARAM w_param,
                               LPARAM l_param,
                               LRESULT* result);
 
   // Called by our subclassed window procedure when a WM_KEYDOWN message is
   // received by the HWND created by an object derived from NativeControlWin.
   // Returns true if the key was processed, false otherwise.
   virtual bool OnKeyDown(int vkey) { return false; }
 
   // Overridden from View:
-  virtual void SetEnabled(bool enabled);
+  virtual void OnEnabledChanged();
 
  protected:
   virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
   virtual void VisibilityChanged(View* starting_from, bool is_visible);
   virtual void OnFocus();
 
   // Called by the containing NativeWidgetWin when a WM_CONTEXTMENU message is
   // received from the HWND created by an object derived from NativeControlWin.
   virtual void ShowContextMenu(const gfx::Point& location);
 
@@ skipping 39 matching lines @@
   WNDPROC original_wndproc_;
 
   ViewProps props_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeControlWin);
 };
 
 }  // namespace views
 
 #endif  // #ifndef VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_