Convert some Shape code to use references

Source/core/rendering/RenderBlockFlow.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2407 matching lines @@
             }
         }
 
         setLogicalTopForFloat(floatingObject, floatLogicalLocation.y());
 
         setLogicalHeightForFloat(floatingObject, logicalHeightForChild(childBox) + marginBeforeForChild(childBox) + marginAfterForChild(childBox));
 
         m_floatingObjects->addPlacedObject(floatingObject);
 
         if (ShapeOutsideInfo* shapeOutside = childBox->shapeOutsideInfo())
-            shapeOutside->setShapeSize(logicalWidthForChild(childBox), logicalHeightForChild(childBox));
+            shapeOutside->setReferenceBoxLogicalSize(logicalSizeForChild(childBox));
 
         // If the child moved, we have to repaint it.
         if (!RuntimeEnabledFeatures::repaintAfterLayoutEnabled()
             && childBox->checkForRepaintDuringLayout())
             childBox->repaintDuringLayoutIfMoved(oldRect);
     }
     return true;
 }
 
 bool RenderBlockFlow::hasOverhangingFloat(RenderBox* renderer)
@@ skipping 393 matching lines @@
 RenderBlockFlow::RenderBlockFlowRareData& RenderBlockFlow::ensureRareData()
 {
     if (m_rareData)
         return *m_rareData;
 
     m_rareData = adoptPtr(new RenderBlockFlowRareData(this));
     return *m_rareData;
 }
 
 } // namespace WebCore