Rename 'UseCounter::observe' to 'UseCounter::count'.

Source/core/svg/SVGTRefElement.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2011. 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 122 matching lines @@
 }
 
 inline SVGTRefElement::SVGTRefElement(const QualifiedName& tagName, Document* document)
     : SVGTextPositioningElement(tagName, document)
     , m_targetListener(SVGTRefTargetEventListener::create(this))
 {
     ASSERT(hasTagName(SVGNames::trefTag));
     ScriptWrappable::init(this);
     registerAnimatedPropertiesForSVGTRefElement();
 
-    UseCounter::observe(document, UseCounter::SVGTRefElement);
+    UseCounter::count(document, UseCounter::SVGTRefElement);
 }
 
 SVGTRefElement::~SVGTRefElement()
 {
     m_targetListener->detach();
 }
 
 void SVGTRefElement::updateReferencedText(Element* target)
 {
     String textContent;
@@ skipping 138 matching lines @@
 void SVGTRefElement::removedFrom(ContainerNode* rootParent)
 {
     SVGStyledElement::removedFrom(rootParent);
     if (rootParent->inDocument())
         m_targetListener->detach();
 }
 
 }
 
 #endif // ENABLE(SVG)