views: Add OnEnabledChanged() method to View class.

views/controls/button/native_button.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/button/native_button.h"
 
 #include "base/i18n/rtl.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "views/controls/native/native_view_host.h"
 
@@ skipping 146 matching lines @@
   return sz;
 }
 
 void NativeButtonBase::Layout() {
   if (native_wrapper_) {
     native_wrapper_->GetView()->SetBounds(0, 0, width(), height());
     native_wrapper_->GetView()->Layout();
   }
 }
 
-void NativeButtonBase::SetEnabled(bool flag) {
-  Button::SetEnabled(flag);
+void NativeButtonBase::OnEnabledChanged() {
+  Button::OnEnabledChanged();
   if (native_wrapper_)
     native_wrapper_->UpdateEnabled();
 }
 
 void NativeButtonBase::ViewHierarchyChanged(bool is_add, View* parent,
                                          View* child) {
   if (is_add && !native_wrapper_ && GetWidget()) {
     // The native wrapper's lifetime will be managed by the view hierarchy after
     // we call AddChildView.
     native_wrapper_ = CreateWrapper();
@@ skipping 101 matching lines @@
 
 NativeButton::NativeButton(ButtonListener* listener, const std::wstring& label)
     : NativeButtonBase(listener, label) {
 }
 
 NativeButton::~NativeButton() {
 }
 #endif
 
 }  // namespace views