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

Source/core/rendering/svg/RenderSVGResourceMarker.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #include "core/rendering/svg/RenderSVGResourceMarker.h"
 
 #include "core/platform/graphics/GraphicsContextStateSaver.h"
 #include "core/rendering/svg/RenderSVGContainer.h"
-#include "core/rendering/svg/RenderSVGRoot.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/SVGMarkerElement.h"
 
 namespace WebCore {
 
 RenderSVGResourceType RenderSVGResourceMarker::s_resourceType = MarkerResourceType;
 
 RenderSVGResourceMarker::RenderSVGResourceMarker(SVGMarkerElement* node)
     : RenderSVGResourceContainer(node)
 {
 }
 
 RenderSVGResourceMarker::~RenderSVGResourceMarker()
 {
 }
 
 void RenderSVGResourceMarker::layout()
 {
+    if (!needsLayout())
+        return;
+
     // Invalidate all resources if our layout changed.
     if (everHadLayout() && selfNeedsLayout())
-        RenderSVGRoot::addResourceForClientInvalidation(this);
+        removeAllClientsFromCache();
 
     // RenderSVGHiddenContainer overwrites layout(). We need the
     // layouting of RenderSVGContainer for calculating  local
     // transformations and repaint.
     RenderSVGContainer::layout();
 }
 
 void RenderSVGResourceMarker::removeAllClientsFromCache(bool markForInvalidation)
 {
     markAllClientsForInvalidation(markForInvalidation ? LayoutAndBoundariesInvalidation : ParentOnlyInvalidation);
@@ skipping 108 matching lines @@
     SVGMarkerElement* marker = toSVGMarkerElement(element());
     ASSERT(marker);
 
     SVGLengthContext lengthContext(marker);
     float w = marker->markerWidthCurrentValue().value(lengthContext);
     float h = marker->markerHeightCurrentValue().value(lengthContext);
     m_viewport = FloatRect(0, 0, w, h);
 }
 
 }