Merge 121491

Source/WebCore/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 538 matching lines @@
 {
     if (m_timeContainer)
         m_timeContainer->schedule(this);
 }
 
 SVGElement* SVGSMILElement::targetElement()
 {
     if (m_targetElement)
         return m_targetElement;
 
+    if (!inDocument())
+        return 0;
+
     String href = getAttribute(XLinkNames::hrefAttr);
     ContainerNode* target = href.isEmpty() ? parentNode() : SVGURIReference::targetElementFromIRIString(href, document());
     if (!target || !target->isSVGElement())
         return 0;
 
     SVGElement* targetElement = static_cast<SVGElement*>(target);
     targetElementWillChange(m_targetElement, targetElement);
     m_targetElement = targetElement;
     document()->accessSVGExtensions()->addAnimationElementToTarget(this, m_targetElement);
     return m_targetElement;
@@ skipping 578 matching lines @@
 
 void SVGSMILElement::endedActiveInterval()
 {
     clearTimesWithDynamicOrigins(m_beginTimes);
     clearTimesWithDynamicOrigins(m_endTimes);
 }
 
 }
 
 #endif