Use DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION to generate toSVGSMILElement()

Source/core/svg/animation/SVGSMILElement.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 442 matching lines @@
         type = Condition::EventBase;
 
     m_conditions.append(Condition(type, beginOrEnd, baseID, nameString, offset, repeat));
 
     if (type == Condition::EventBase && beginOrEnd == End)
         m_hasEndEventConditions = true;
 
     return true;
 }
 
-bool SVGSMILElement::isSMILElement(Node* node)
-{
-    if (!node)
-        return false;
-    return node->hasTagName(SVGNames::setTag) || node->hasTagName(SVGNames::animateTag) || node->hasTagName(SVGNames::animateMotionTag)
-            || node->hasTagName(SVGNames::animateTransformTag) || node->hasTagName(SVGNames::animateColorTag);
-}
-
 void SVGSMILElement::parseBeginOrEnd(const String& parseString, BeginOrEnd beginOrEnd)
 {
     Vector<SMILTimeWithOrigin>& timeList = beginOrEnd == Begin ? m_beginTimes : m_endTimes;
     if (beginOrEnd == End)
         m_hasEndEventConditions = false;
     HashSet<double> existing;
     for (unsigned n = 0; n < timeList.size(); ++n)
         existing.add(timeList[n].time().value());
     Vector<String> splitString;
     parseString.split(';', splitString);
@@ skipping 98 matching lines @@
             ASSERT(!condition.m_syncbase);
             Element* eventBase = eventBaseFor(condition);
             if (!eventBase)
                 continue;
             ASSERT(!condition.m_eventListener);
             condition.m_eventListener = ConditionEventListener::create(this, &condition);
             eventBase->addEventListener(condition.m_name, condition.m_eventListener, false);
         } else if (condition.m_type == Condition::Syncbase) {
             ASSERT(!condition.m_baseID.isEmpty());
             condition.m_syncbase = treeScope().getElementById(condition.m_baseID);
-            if (!isSMILElement(condition.m_syncbase.get())) {
+            if (!condition.m_syncbase || !isSVGSMILElement(*condition.m_syncbase)) {
                 condition.m_syncbase = 0;
                 continue;
             }
             toSVGSMILElement(condition.m_syncbase.get())->addTimeDependent(this);
         }
     }
 }
 
 void SVGSMILElement::disconnectConditions()
 {
@@ skipping 687 matching lines @@
     if (eventType == "repeatn") {
         unsigned repeatEventCount = m_repeatEventCountList.first();
         m_repeatEventCountList.remove(0);
         dispatchEvent(RepeatEvent::create(eventType, repeatEventCount));
     } else {
         dispatchEvent(Event::create(eventType));
     }
 }
 
 }