Avoid branching in createAttributeEventListener

Source/core/svg/SVGScriptElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
  *
  * 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 50 matching lines @@
     if (!isSupportedAttribute(name)) {
         SVGElement::parseAttribute(name, value);
         return;
     }
 
     SVGParsingError parseError = NoError;
     if (name == SVGNames::typeAttr)
         return;
 
     if (name == HTMLNames::onerrorAttr) {
-        setAttributeEventListener(EventTypeNames::error, createAttributeEventListener(this, name, value));
+        setAttributeEventListener(EventTypeNames::error, createAttributeEventListener(this, name, value, eventParameterName()));
     } else if (SVGURIReference::parseAttribute(name, value, parseError)) {
     } else {
         ASSERT_NOT_REACHED();
     }
 
     reportAttributeParsingError(parseError, name, value);
 }
 
 void SVGScriptElement::svgAttributeChanged(const QualifiedName& attrName)
 {
@@ skipping 112 matching lines @@
 bool SVGScriptElement::isAnimatableAttribute(const QualifiedName& name) const
 {
     if (name == SVGNames::typeAttr)
         return false;
 
     return SVGElement::isAnimatableAttribute(name);
 }
 #endif
 
 }