Convert some Shape code to use references

Source/core/rendering/LayoutState.cpp

 /*
  * Copyright (C) 2007 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 89 matching lines @@
         if (renderer.isUnsplittableForPagination())
             m_pageLogicalHeight = 0;
     }
 
     if (!m_columnInfo)
         m_columnInfo = m_next->m_columnInfo;
 
     if (renderer.isRenderBlock()) {
         const RenderBlock& renderBlock = toRenderBlock(renderer);
         m_shapeInsideInfo = renderBlock.shapeInsideInfo();
-        if (!m_shapeInsideInfo && m_next->m_shapeInsideInfo && renderBlock.allowsShapeInsideInfoSharing(m_next->m_shapeInsideInfo->owner()))
+        if (!m_shapeInsideInfo && m_next->m_shapeInsideInfo && renderBlock.allowsShapeInsideInfoSharing(&m_next->m_shapeInsideInfo->owner()))
             m_shapeInsideInfo = m_next->m_shapeInsideInfo;
     }
 
     if (!RuntimeEnabledFeatures::repaintAfterLayoutEnabled()) {
         m_layoutDelta = m_next->m_layoutDelta;
 #if !ASSERT_DISABLED
         m_layoutDeltaXSaturated = m_next->m_layoutDeltaXSaturated;
         m_layoutDeltaYSaturated = m_next->m_layoutDeltaYSaturated;
 #endif
     }
@@ skipping 56 matching lines @@
 }
 
 void LayoutState::addForcedColumnBreak(const RenderBox& child, const LayoutUnit& childLogicalOffset)
 {
     if (!m_columnInfo || m_columnInfo->columnHeight())
         return;
     m_columnInfo->addForcedBreak(pageLogicalOffset(child, childLogicalOffset));
 }
 
 } // namespace WebCore