[SVG] Resources should be laid out in dependecy order.

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.
  *
  * 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 262 matching lines @@
 void SVGSVGElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     bool updateRelativeLengthsOrViewBox = false;
     bool widthChanged = attrName == SVGNames::widthAttr;
     if (widthChanged
         || attrName == SVGNames::heightAttr
         || attrName == SVGNames::xAttr
         || attrName == SVGNames::yAttr) {
         updateRelativeLengthsOrViewBox = true;
         updateRelativeLengthsInformation();
+        invalidateRelativeLengthClients();
 
         // At the SVG/HTML boundary (aka RenderSVGRoot), the width attribute can
         // affect the replaced size so we need to mark it for updating.
         if (widthChanged) {
             RenderObject* renderObject = renderer();
             if (renderObject && renderObject->isSVGRoot())
                 toRenderSVGRoot(renderObject)->setNeedsLayoutAndPrefWidthsRecalc();
         }
     }
 
@@ skipping 480 matching lines @@
             continue;
 
         Element* element = toElement(node);
         if (element->getIdAttribute() == id)
             return element;
     }
     return 0;
 }
 
 }