views: Add OnEnabledChanged() method to View class.

views/controls/label.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/label.h"
 
 #include <cmath>
 #include <limits>
 
 #include "base/i18n/rtl.h"
@@ skipping 188 matching lines @@
   if (!is_multi_line_)
     return View::GetHeightForWidth(w);
 
   w = std::max(0, w - GetInsets().width());
   int h = font_.GetHeight();
   gfx::CanvasSkia::SizeStringInt(text_, font_, &w, &h,
                                  ComputeMultiLineFlags());
   return h + GetInsets().height();
 }
 
-void Label::SetEnabled(bool enabled) {
-  if (enabled == enabled_)
-    return;
-  View::SetEnabled(enabled);
-  SetColor(enabled ? kEnabledColor : kDisabledColor);
+void Label::OnEnabledChanged() {
+  View::OnEnabledChanged();
+  SetColor(View::IsEnabled() ? kEnabledColor : kDisabledColor);
 }
 
 std::string Label::GetClassName() const {
   return kViewClassName;
 }
 
 void Label::OnMouseMoved(const MouseEvent& event) {
   UpdateContainsMouse(event);
 }
 
@@ skipping 230 matching lines @@
         font_, GetAvailableRect().width(), true));
   } else {
     *paint_text = UTF16ToWideHack(text_);
   }
 
   *text_bounds = GetTextBounds();
   *flags = ComputeMultiLineFlags();
 }
 
 }  // namespace views