Simplify SVGAnimat\w+Element::parseAttribute

Source/core/svg/SVGAnimateMotionElement.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Apple 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 21 matching lines @@
 
     DECLARE_NODE_FACTORY(SVGAnimateMotionElement);
     void updateAnimationPath();
 
 private:
     explicit SVGAnimateMotionElement(Document&);
 
     virtual bool hasValidAttributeType() OVERRIDE;
     virtual bool hasValidAttributeName() OVERRIDE;
 
-    bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
 
     virtual void resetAnimatedType() OVERRIDE;
     virtual void clearAnimatedType(SVGElement* targetElement) OVERRIDE;
     virtual bool calculateToAtEndOfDurationValue(const String& toAtEndOfDurationString) OVERRIDE;
     virtual bool calculateFromAndToValues(const String& fromString, const String& toString) OVERRIDE;
     virtual bool calculateFromAndByValues(const String& fromString, const String& byString) OVERRIDE;
     virtual void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGSMILElement* resultElement) OVERRIDE;
     virtual void applyResultsToTarget() OVERRIDE;
     virtual float calculateDistance(const String& fromString, const String& toString) OVERRIDE;
@@ skipping 14 matching lines @@
     FloatPoint m_toPoint;
     FloatPoint m_toPointAtEndOfDuration;
 
     Path m_path;
     Path m_animationPath;
 };
 
 } // namespace blink
 
 #endif // SVGAnimateMotionElement_h