Convert some Shape code to use references

Source/core/rendering/shapes/ShapeOutsideInfo.h

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 27 matching lines @@
 class RenderBlockFlow;
 class RenderBox;
 class FloatingObject;
 
 class ShapeOutsideInfo FINAL : public ShapeInfo<RenderBox>, public MappedInfo<RenderBox, ShapeOutsideInfo> {
 public:
     LayoutUnit leftMarginBoxDelta() const { return m_leftMarginBoxDelta; }
     LayoutUnit rightMarginBoxDelta() const { return m_rightMarginBoxDelta; }
     bool lineOverlapsShape() const { return m_lineOverlapsShape; }
 
-    void updateDeltasForContainingBlockLine(const RenderBlockFlow*, const FloatingObject*, LayoutUnit lineTop, LayoutUnit lineHeight);
-
-    static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox* renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); }
-    static bool isEnabledFor(const RenderBox*);
+    static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox& renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); }
+    static bool isEnabledFor(const RenderBox&);
+    void updateDeltasForContainingBlockLine(const RenderBlockFlow&, const FloatingObject&, LayoutUnit lineTop, LayoutUnit lineHeight);
 
     virtual bool lineOverlapsShapeBounds() const OVERRIDE
     {
-        return computedShape()->lineOverlapsShapeMarginBounds(m_referenceBoxLineTop, m_lineHeight);
+        return computedShape().lineOverlapsShapeMarginBounds(m_referenceBoxLineTop, m_lineHeight);
     }
 
 protected:
     virtual LayoutBox referenceBox() const OVERRIDE
     {
         if (shapeValue()->layoutBox() == BoxMissing)
             return MarginBox;
         return shapeValue()->layoutBox();
     }
-    virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape()->shapeMarginLogicalBoundingBox(); }
+    virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape().shapeMarginLogicalBoundingBox(); }
     virtual ShapeValue* shapeValue() const OVERRIDE;
     virtual void getIntervals(LayoutUnit lineTop, LayoutUnit lineHeight, SegmentList& segments) const OVERRIDE
     {
-        return computedShape()->getExcludedIntervals(lineTop, lineHeight, segments);
+        return computedShape().getExcludedIntervals(lineTop, lineHeight, segments);
     }
 
 private:
-    ShapeOutsideInfo(const RenderBox* renderer)
+    ShapeOutsideInfo(const RenderBox& renderer)
         : ShapeInfo<RenderBox>(renderer)
         , m_lineOverlapsShape(false)
     { }
 
     LayoutUnit m_leftMarginBoxDelta;
     LayoutUnit m_rightMarginBoxDelta;
     LayoutUnit m_borderBoxLineTop;
     bool m_lineOverlapsShape;
 };
 
 }
 #endif