Blink-side contiguous allocation of display items.

Source/core/layout/LayoutTable.h

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 292 matching lines @@
     LayoutTableCol* slowColElement(unsigned col, bool* startEdge, bool* endEdge) const;
 
     void updateColumnCache() const;
     void invalidateCachedColumns();
 
     virtual void updateLogicalWidth() override;
 
     LayoutUnit convertStyleLogicalWidthToComputedWidth(const Length& styleLogicalWidth, LayoutUnit availableWidth);
     LayoutUnit convertStyleLogicalHeightToComputedHeight(const Length& styleLogicalHeight);
 
-    virtual LayoutRect overflowClipRect(const LayoutPoint& location, OverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize) override;
+    virtual LayoutRect overflowClipRect(const LayoutPoint& location, OverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize) const override;
 
     virtual void addOverflowFromChildren() override;
 
     void recalcSections() const;
     void layoutCaption(LayoutTableCaption&);
 
     void distributeExtraLogicalHeight(int extraLogicalHeight);
 
     void recalcCollapsedBordersIfNeeded();
 
@@ skipping 42 matching lines @@
     if (m_firstBody)
         return m_firstBody;
     return m_foot;
 }
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTable, isTable());
 
 } // namespace blink
 
 #endif // LayoutTable_h