Make supportsMarkers non virtual

Source/core/rendering/svg/RenderSVGShape.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2005, 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * Copyright (C) 2011 University of Szeged
@@ skipping 178 matching lines @@
 AffineTransform RenderSVGShape::nonScalingStrokeTransform() const
 {
     return toSVGGraphicsElement(element())->getScreenCTM(SVGGraphicsElement::DisallowStyleUpdate);
 }
 
 bool RenderSVGShape::shouldGenerateMarkerPositions() const
 {
     if (!style()->svgStyle()->hasMarkers())
         return false;
 
-    if (!toSVGGraphicsElement(element())->supportsMarkers())
+    if (!SVGResources::supportsMarkers(*toSVGGraphicsElement(element())))
         return false;
 
     SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
     if (!resources)
         return false;
 
     return resources->markerStart() || resources->markerMid() || resources->markerEnd();
 }
 
 void RenderSVGShape::fillShape(RenderStyle* style, GraphicsContext* context)
@@ skipping 250 matching lines @@
         return;
 
     ASSERT(m_path);
 
     SVGMarkerData markerData(m_markerPositions);
     m_path->apply(&markerData, SVGMarkerData::updateFromPathElement);
     markerData.pathIsDone();
 }
 
 }