Make SVG objects ScriptWrappable.

Source/core/svg/SVGElementInstance.cpp

 /*
  * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * 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.
  *
@@ skipping 33 matching lines @@
     , m_correspondingUseElement(correspondingUseElement)
     , m_directUseElement(directUseElement)
     , m_element(originalElement)
     , m_previousSibling(0)
     , m_nextSibling(0)
     , m_firstChild(0)
     , m_lastChild(0)
 {
     ASSERT(m_correspondingUseElement);
     ASSERT(m_element);
+    ScriptWrappable::init(this);
 
     // Register as instance for passed element.
     m_element->mapInstanceToElement(this);
 
 #ifndef NDEBUG
     instanceCounter.increment();
 #endif
 }
 
 SVGElementInstance::~SVGElementInstance()
@@ skipping 140 matching lines @@
         m_targetElement->setInstanceUpdatesBlocked(true);
 }
 
 SVGElementInstance::InstanceUpdateBlocker::~InstanceUpdateBlocker()
 {
     if (m_targetElement)
         m_targetElement->setInstanceUpdatesBlocked(false);
 }
    
 }