Prepare SMILTimeContainer for oilpan

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 187 matching lines @@
 SVGSMILElement::~SVGSMILElement()
 {
 #if !ENABLE(OILPAN)
     clearResourceAndEventBaseReferences();
 #endif
     smilEndEventSender().cancelEvent(this);
     smilBeginEventSender().cancelEvent(this);
     smilRepeatEventSender().cancelEvent(this);
     smilRepeatNEventSender().cancelEvent(this);
 #if !ENABLE(OILPAN)
+    // FIXME: Oilpan: Clear |m_syncBaseDependents| using weak processing.
     clearConditions();
+
     if (m_timeContainer && m_targetElement && hasValidAttributeName())
         m_timeContainer->unschedule(this, m_targetElement, m_attributeName);
 #endif
 }
 
 void SVGSMILElement::clearResourceAndEventBaseReferences()
 {
     document().accessSVGExtensions().removeAllTargetReferencesForElement(this);
 }
 
@@ skipping 1123 matching lines @@
 }
 
 void SVGSMILElement::Condition::trace(Visitor* visitor)
 {
     visitor->trace(m_syncBase);
 }
 
 void SVGSMILElement::trace(Visitor* visitor)
 {
     visitor->trace(m_targetElement);
+    visitor->trace(m_timeContainer);
     visitor->trace(m_conditions);
     visitor->trace(m_syncBaseDependents);
     SVGElement::trace(visitor);
 }
 
 }