views: Add OnEnabledChanged() method to View class.

views/controls/label.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_LABEL_H_
 #define VIEWS_CONTROLS_LABEL_H_
 #pragma once
 
 #include "base/gtest_prod_util.h"
 #include "googleurl/src/gurl.h"
@@ skipping 143 matching lines @@
   // Overridden from View:
   virtual gfx::Insets GetInsets() const;
   virtual int GetBaseline() OVERRIDE;
   // Overridden to compute the size required to display this label.
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   // Return the height necessary to display this label with the provided width.
   // This method is used to layout multi-line labels. It is equivalent to
   // GetPreferredSize().height() if the receiver is not multi-line.
   virtual int GetHeightForWidth(int w);
   // Sets the enabled state. Setting the enabled state resets the color.
-  virtual void SetEnabled(bool enabled) OVERRIDE;
+  virtual void OnEnabledChanged() OVERRIDE;
   virtual std::string GetClassName() const OVERRIDE;
   // Mouse enter/exit are overridden to render mouse over background color.
   // These invoke SetContainsMouse as necessary.
   virtual void OnMouseMoved(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseEntered(const MouseEvent& event) OVERRIDE;
   virtual void OnMouseExited(const MouseEvent& event) OVERRIDE;
   // Gets the tooltip text for labels that are wider than their bounds, except
   // when the label is multiline, in which case it just returns false (no
   // tooltip).  If a custom tooltip has been specified with SetTooltipText()
   // it is returned instead.
@@ skipping 84 matching lines @@
   // allows this view to reserve space for a focus border that it otherwise
   // might not have because it is not itself focusable.
   bool has_focus_border_;
 
   DISALLOW_COPY_AND_ASSIGN(Label);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_LABEL_H_