Use a bitmask for SVG render object types

Source/core/rendering/svg/RenderSVGShape.h

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2006 Apple Computer, Inc
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * Copyright (C) 2011 University of Szeged
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 71 matching lines @@
 
 private:
     // Hit-detection separated for the fill and the stroke
     bool fillContains(const FloatPoint&, bool requiresFill = true, const WindRule fillRule = RULE_NONZERO);
     bool strokeContains(const FloatPoint&, bool requiresStroke = true);
 
     virtual FloatRect repaintRectInLocalCoordinates() const OVERRIDE FINAL { return m_repaintBoundingBox; }
     virtual const AffineTransform& localToParentTransform() const OVERRIDE FINAL { return m_localTransform; }
     virtual AffineTransform localTransform() const OVERRIDE FINAL { return m_localTransform; }
 
-    virtual bool isSVGShape() const OVERRIDE FINAL { return true; }
     virtual const char* renderName() const { return "RenderSVGShape"; }
+    virtual SVGType getSVGType() const OVERRIDE { return IsSVGShape; }
 
     virtual void layout() OVERRIDE FINAL;
     virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL;
     virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) OVERRIDE FINAL;
 
     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) OVERRIDE FINAL;
 
     virtual FloatRect objectBoundingBox() const OVERRIDE FINAL { return m_fillBoundingBox; }
     virtual FloatRect strokeBoundingBox() const OVERRIDE FINAL { return m_strokeBoundingBox; }
     FloatRect calculateObjectBoundingBox() const;
@@ skipping 20 matching lines @@
     bool m_needsBoundariesUpdate : 1;
     bool m_needsShapeUpdate : 1;
     bool m_needsTransformUpdate : 1;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGShape, isSVGShape());
 
 }
 
 #endif