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

Source/core/svg/SVGAnimatedLength.cpp

 /*
  * 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 21 matching lines @@
 
 #include "core/svg/SVGAnimatedLength.h"
 
 namespace WebCore {
 
 void SVGAnimatedLength::setDefaultValueAsString(const String& value)
 {
     baseValue()->setValueAsString(value, ASSERT_NO_EXCEPTION);
 }
 
-void SVGAnimatedLength::setBaseValueAsString(const String& value, SVGLengthNegativeValuesMode mode, SVGParsingError& parseError)
+void SVGAnimatedLength::setBaseValueAsString(const String& value, SVGParsingError& parseError)
 {
     TrackExceptionState es;
 
     baseValue()->setValueAsString(value, es);
 
     if (es.hadException()) {
         parseError = ParsingAttributeFailedError;
         baseValue()->newValueSpecifiedUnits(LengthTypeNumber, 0);
-    } else if (mode == ForbidNegativeLengths && baseValue()->valueInSpecifiedUnits() < 0) {
+    } else if (m_negativeValuesMode == ForbidNegativeLengths && baseValue()->valueInSpecifiedUnits() < 0) {
         parseError = NegativeValueForbiddenError;
     }
 }
 
 }