Convert some Shape code to use references

Source/core/rendering/RenderBlock.h

Index: Source/core/rendering/RenderBlock.h
diff --git a/Source/core/rendering/RenderBlock.h b/Source/core/rendering/RenderBlock.h
index d63945d13d389cd1c662c785cd7f6668399990f1..30ea36b6cd92d688f2d345a199d4d4f56ce5cad6 100644
--- a/Source/core/rendering/RenderBlock.h
+++ b/Source/core/rendering/RenderBlock.h
@@ -227,6 +227,7 @@ public:
     // Accessors for logical width/height and margins in the containing block's block-flow direction.
     LayoutUnit logicalWidthForChild(const RenderBox* child) const { return isHorizontalWritingMode() ? child->width() : child->height(); }
     LayoutUnit logicalHeightForChild(const RenderBox* child) const { return isHorizontalWritingMode() ? child->height() : child->width(); }
+    LayoutSize logicalSizeForChild(const RenderBox* child) const { return isHorizontalWritingMode() ? child->size() : child->size().transposedSize(); }

[adamk, 2014/03/04 19:45:05]

This change seems out of place in this patch, as it has nothing to do with
changing pointers to references.

     LayoutUnit logicalTopForChild(const RenderBox* child) const { return isHorizontalWritingMode() ? child->y() : child->x(); }
     LayoutUnit marginBeforeForChild(const RenderBoxModelObject* child) const { return child->marginBefore(style()); }
     LayoutUnit marginAfterForChild(const RenderBoxModelObject* child) const { return child->marginAfter(style()); }
@@ -254,15 +255,15 @@ public:
     void showLineTreeAndMark(const InlineBox* = 0, const char* = 0, const InlineBox* = 0, const char* = 0, const RenderObject* = 0) const;
 #endif
 
-    ShapeInsideInfo* ensureShapeInsideInfo()
+    ShapeInsideInfo& ensureShapeInsideInfo()
     {
         if (!m_rareData || !m_rareData->m_shapeInsideInfo)
-            setShapeInsideInfo(ShapeInsideInfo::createInfo(this));
-        return m_rareData->m_shapeInsideInfo.get();
+            setShapeInsideInfo(ShapeInsideInfo::createInfo(*this));
+        return *m_rareData->m_shapeInsideInfo;
     }
     ShapeInsideInfo* shapeInsideInfo() const
     {
-        return m_rareData && m_rareData->m_shapeInsideInfo && ShapeInsideInfo::isEnabledFor(this) ? m_rareData->m_shapeInsideInfo.get() : 0;
+        return m_rareData && m_rareData->m_shapeInsideInfo && ShapeInsideInfo::isEnabledFor(*this) ? m_rareData->m_shapeInsideInfo.get() : 0;
     }
     void setShapeInsideInfo(PassOwnPtr<ShapeInsideInfo> value)
     {