Use a bitmask for SVG render object types

Source/core/rendering/svg/RenderSVGForeignObject.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2009 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 15 matching lines @@
 namespace WebCore {
 
 class SVGForeignObjectElement;
 
 class RenderSVGForeignObject FINAL : public RenderSVGBlock {
 public:
     explicit RenderSVGForeignObject(SVGForeignObjectElement*);
     virtual ~RenderSVGForeignObject();
 
     virtual const char* renderName() const { return "RenderSVGForeignObject"; }
+    virtual SVGType getSVGType() const OVERRIDE { return IsSVGForeignObject; }
 
     virtual void paint(PaintInfo&, const LayoutPoint&);
 
     virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const OVERRIDE;
     virtual void computeFloatRectForRepaint(const RenderLayerModelObject* repaintContainer, FloatRect&, bool fixed = false) const OVERRIDE;
 
     virtual bool requiresLayer() const { return false; }
     virtual void layout();
 
     virtual FloatRect objectBoundingBox() const { return FloatRect(FloatPoint(), m_viewport.size()); }
     virtual FloatRect strokeBoundingBox() const { return FloatRect(FloatPoint(), m_viewport.size()); }
     virtual FloatRect repaintRectInLocalCoordinates() const { return FloatRect(FloatPoint(), m_viewport.size()); }
 
     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE;
-    virtual bool isSVGForeignObject() const { return true; }
 
     virtual void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const OVERRIDE;
     virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const OVERRIDE;
     virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
 
 private:
     virtual void updateLogicalWidth() OVERRIDE;
     virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const OVERRIDE;
 
     virtual const AffineTransform& localToParentTransform() const;
     virtual AffineTransform localTransform() const { return m_localTransform; }
 
     bool m_needsTransformUpdate : 1;
     FloatRect m_viewport;
     AffineTransform m_localTransform;
     mutable AffineTransform m_localToParentTransform;
 };
 
 }
 
 #endif