Remove 3-args |SVGAnimatedLength::baseValueToString()| impl.

Source/core/svg/SVGAnimatedLength.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #ifndef SVGAnimatedLength_h
 #define SVGAnimatedLength_h
 
 #include "core/svg/SVGLengthTearOff.h"
 #include "core/svg/properties/NewSVGAnimatedProperty.h"
 
 namespace WebCore {
 
 class SVGAnimatedLength : public NewSVGAnimatedProperty<SVGLength> {
 public:
-    static PassRefPtr<SVGAnimatedLength> create(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue)
+    static PassRefPtr<SVGAnimatedLength> create(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue, SVGLengthNegativeValuesMode negativeValuesMode)
     {
-        return adoptRef(new SVGAnimatedLength(contextElement, attributeName, initialValue));
+        return adoptRef(new SVGAnimatedLength(contextElement, attributeName, initialValue, negativeValuesMode));
     }
 
     void setDefaultValueAsString(const String&);
-    void setBaseValueAsString(const String&, SVGLengthNegativeValuesMode, SVGParsingError&);
+    void setBaseValueAsString(const String&, SVGParsingError&);
 
 protected:
-    SVGAnimatedLength(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue)
+    SVGAnimatedLength(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue, SVGLengthNegativeValuesMode negativeValuesMode)
         : NewSVGAnimatedProperty<SVGLength>(contextElement, attributeName, initialValue)
+        , m_negativeValuesMode(negativeValuesMode)
     {
     }
+
+private:
+    SVGLengthNegativeValuesMode m_negativeValuesMode;
 };
 
 } // namespace WebCore
 
 #endif // SVGAnimatedLength_h