views: Add OnEnabledChanged() method to View class.

views/controls/native_control.cc

 // 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.
 
 #include "views/controls/native_control.h"
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlframe.h>
@@ skipping 294 matching lines @@
   if (f != IsVisible()) {
     View::SetVisible(f);
     if (!f && container_) {
       ::DestroyWindow(*container_);
     } else if (f && !container_) {
       ValidateNativeControl();
     }
   }
 }
 
-void NativeControl::SetEnabled(bool enabled) {
-  if (enabled_ != enabled) {
-    View::SetEnabled(enabled);
-    if (GetNativeControlHWND()) {
-      EnableWindow(GetNativeControlHWND(), enabled_);
-    }
-  }
+void NativeControl::OnEnabledChanged() {
+  View::OnEnabledChanged();
+  if (GetNativeControlHWND())
+    EnableWindow(GetNativeControlHWND(), View::IsEnabled());
 }
 
 void NativeControl::OnPaint(gfx::Canvas* canvas) {
 }
 
 void NativeControl::VisibilityChanged(View* starting_from, bool is_visible) {
   SetVisible(is_visible);
 }
 
 void NativeControl::SetFixedWidth(int width, Alignment alignment) {
@@ skipping 55 matching lines @@
   } else if (message == WM_DESTROY) {
     ui::SetWindowProc(window, reinterpret_cast<WNDPROC>(original_handler));
     native_control->container_->prop_.reset();
   }
 
   return CallWindowProc(reinterpret_cast<WNDPROC>(original_handler), window,
                         message, w_param, l_param);
 }
 
 }  // namespace views