Avoid branching in createAttributeEventListener

Source/core/svg/SVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
  *
  * 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
@@ skipping 657 matching lines @@
         SVGParsingError parseError = NoError;
         m_className->setBaseValueAsString(value, parseError);
         reportAttributeParsingError(parseError, name, value);
     } else if (name.matches(XMLNames::langAttr) || name.matches(XMLNames::spaceAttr)) {
     } else if (name == tabindexAttr) {
         Element::parseAttribute(name, value);
     } else {
         // standard events
         const AtomicString& eventName = HTMLElement::eventNameForAttributeName(name);
         if (!eventName.isNull())
-            setAttributeEventListener(eventName, createAttributeEventListener(this, name, value));
+            setAttributeEventListener(eventName, createAttributeEventListener(this, name, value, eventParameterName()));
         else
             Element::parseAttribute(name, value);
     }
 }
 
 typedef HashMap<QualifiedName, AnimatedPropertyType> AttributeToPropertyTypeMap;
 AnimatedPropertyType SVGElement::animatedPropertyTypeForCSSAttribute(const QualifiedName& attributeName)
 {
     DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, cssPropertyMap, ());
 
@@ skipping 480 matching lines @@
 }
 #endif
 
 void SVGElement::trace(Visitor* visitor)
 {
     visitor->trace(m_elementsWithRelativeLengths);
     visitor->trace(m_SVGRareData);
     Element::trace(visitor);
 }
 
+const AtomicString& SVGElement::eventParameterName()
+{
+    DEFINE_STATIC_LOCAL(const AtomicString, evtString, ("evt", AtomicString::ConstructFromLiteral));
+    return evtString;
 }
+
+}