Prepare SMILTimeContainer for oilpan

Source/core/svg/SVGSVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Google, Inc.
  *
  * 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 763 matching lines @@
     if (isOutermostSVGSVGElement())
         return;
 
     // finishParsingChildren() is called when the close tag is reached for an element (e.g. </svg>)
     // we send SVGLoad events here if we can, otherwise they'll be sent when any required loads finish
     sendSVGLoadEventIfPossible();
 }
 
 void SVGSVGElement::trace(Visitor* visitor)
 {
+    visitor->trace(m_timeContainer);
     visitor->trace(m_viewSpec);
     SVGGraphicsElement::trace(visitor);
 }
 
 }