Revert a series of wrong fixes for crbug.com/361011

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 96 matching lines @@
 void SVGScriptElement::didNotifySubtreeInsertionsToDocument()
 {
     m_loader->didNotifySubtreeInsertionsToDocument();
 
     if (!m_loader->isParserInserted()) {
         m_loader->setHaveFiredLoadEvent(true);
         sendSVGLoadEventIfPossibleAsynchronously();
     }
 }
 
-void SVGScriptElement::didMoveToNewDocument(Document& oldDocument)
-{
-    SVGElement::didMoveToNewDocument(oldDocument);
-    m_loader->cancel(&oldDocument);
-}
-
 void SVGScriptElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
 {
     SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     m_loader->childrenChanged();
 }
 
 bool SVGScriptElement::isURLAttribute(const Attribute& attribute) const
 {
     return attribute.name() == AtomicString(sourceAttributeValue());
 }
@@ skipping 68 matching lines @@
 bool SVGScriptElement::isAnimatableAttribute(const QualifiedName& name) const
 {
     if (name == SVGNames::typeAttr)
         return false;
 
     return SVGElement::isAnimatableAttribute(name);
 }
 #endif
 
 }