Convert some Shape code to use references

Source/core/rendering/shapes/ShapeInsideInfo.h

Index: Source/core/rendering/shapes/ShapeInsideInfo.h
diff --git a/Source/core/rendering/shapes/ShapeInsideInfo.h b/Source/core/rendering/shapes/ShapeInsideInfo.h
index 9b55603ef27f8983de598a53f6f14e7c7710f98a..384638727ed0e55a041b59d2ce275b0864b3067e 100644
--- a/Source/core/rendering/shapes/ShapeInsideInfo.h
+++ b/Source/core/rendering/shapes/ShapeInsideInfo.h
@@ -62,9 +62,8 @@ typedef Vector<LineSegmentRange> SegmentRangeList;
 
 class ShapeInsideInfo FINAL : public ShapeInfo<RenderBlock> {
 public:
-    static PassOwnPtr<ShapeInsideInfo> createInfo(const RenderBlock* renderer) { return adoptPtr(new ShapeInsideInfo(renderer)); }
-
-    static bool isEnabledFor(const RenderBlock* renderer);
+    static PassOwnPtr<ShapeInsideInfo> createInfo(const RenderBlock& renderer) { return adoptPtr(new ShapeInsideInfo(renderer)); }
+    static bool isEnabledFor(const RenderBlock& renderer);
 
     bool updateSegmentsForLine(LayoutSize lineOffset, LayoutUnit lineHeight);
     bool updateSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight);
@@ -96,7 +95,7 @@ public:
 
     virtual bool lineOverlapsShapeBounds() const OVERRIDE
     {
-        return computedShape()->lineOverlapsShapePaddingBounds(m_referenceBoxLineTop, m_lineHeight);
+        return computedShape().lineOverlapsShapePaddingBounds(m_referenceBoxLineTop, m_lineHeight);
     }
 
 protected:
@@ -106,15 +105,15 @@ protected:
             return ContentBox;
         return shapeValue()->layoutBox();
     }
-    virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape()->shapePaddingLogicalBoundingBox(); }
+    virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape().shapePaddingLogicalBoundingBox(); }
     virtual ShapeValue* shapeValue() const OVERRIDE;
     virtual void getIntervals(LayoutUnit lineTop, LayoutUnit lineHeight, SegmentList& segments) const OVERRIDE
     {
-        return computedShape()->getIncludedIntervals(lineTop, lineHeight, segments);
+        return computedShape().getIncludedIntervals(lineTop, lineHeight, segments);
     }
 
 private:
-    ShapeInsideInfo(const RenderBlock* renderer)
+    ShapeInsideInfo(const RenderBlock& renderer)
     : ShapeInfo<RenderBlock> (renderer)
     , m_needsLayout(false)
     { }