Revert of Refactoring activity logger.

Source/core/html/HTMLLinkElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 149 matching lines @@
     bool shouldProcessStyle() { return linkResourceToProcess() && linkStyle(); }
     bool isCreatedByParser() const { return m_createdByParser; }
 
     // Parse the icon size attribute into |iconSizes|, make this method public
     // visible for testing purpose.
     static void parseSizesAttribute(const AtomicString& value, Vector<IntSize>& iconSizes);
 
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
-    virtual void attributeWillChange(const QualifiedName&, const AtomicString& oldValue, const AtomicString& newValue) OVERRIDE;
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
 
     LinkStyle* linkStyle() const;
     LinkImport* linkImport() const;
     LinkResource* linkResourceToProcess();
 
     void process();
     static void processCallback(Node*);
 
     // From Node and subclassses
@@ skipping 27 matching lines @@
     Vector<IntSize> m_iconSizes;
     LinkRelAttribute m_relAttribute;
 
     bool m_createdByParser;
     bool m_isInShadowTree;
 };
 
 } //namespace
 
 #endif