[svg] TearOffs dynamically hold on to the current contextElement().

Source/core/svg/properties/SVGAnimatedProperty.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 14 matching lines @@
 
 namespace WebCore {
 
 SVGAnimatedProperty::SVGAnimatedProperty(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType)
     : m_contextElement(contextElement)
     , m_attributeName(attributeName)
     , m_animatedPropertyType(animatedPropertyType)
     , m_isAnimating(false)
     , m_isReadOnly(false)
 {
+    contextElement->setContextElement();

[haraken, 2013/11/13 06:08:59]

Isn't there any chance where we want to unset a context element?

 }
 
 SVGAnimatedProperty::~SVGAnimatedProperty()
 {
     // Assure that animationEnded() was called, if animationStarted() was called before.
     ASSERT(!m_isAnimating);
 }
 
 void SVGAnimatedProperty::detachAnimatedPropertiesForElement(SVGElement* element)
 {
@@ skipping 22 matching lines @@
     m_contextElement->svgAttributeChanged(m_attributeName);
 }
 
 SVGAnimatedProperty::Cache* SVGAnimatedProperty::animatedPropertyCache()
 {
     static Cache* s_cache = new Cache;
     return s_cache;
 }
 
 } // namespace WebCore