Move border-*-width out of BorderValue and store on SurroundData in ComputedStyle instead

third_party/WebKit/Source/core/layout/LayoutTableCol.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 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 62 matching lines @@
   }
   bool IsTableColumnGroup() const {
     return Style()->Display() == EDisplay::kTableColumnGroup;
   }
 
   LayoutTableCol* EnclosingColumnGroup() const;
 
   // Returns the next column or column-group.
   LayoutTableCol* NextColumn() const;
 
-  const BorderValue& BorderAdjoiningCellStartBorder(
-      const LayoutTableCell*) const;
-  const BorderValue& BorderAdjoiningCellEndBorder(const LayoutTableCell*) const;
-  const BorderValue& BorderAdjoiningCellBefore(const LayoutTableCell*) const;
-  const BorderValue& BorderAdjoiningCellAfter(const LayoutTableCell*) const;
+  BorderValue BorderAdjoiningCellStartBorder(const LayoutTableCell*) const;
+  BorderValue BorderAdjoiningCellEndBorder(const LayoutTableCell*) const;
+  BorderValue BorderAdjoiningCellBefore(const LayoutTableCell*) const;
+  BorderValue BorderAdjoiningCellAfter(const LayoutTableCell*) const;
 
   const char* GetName() const override { return "LayoutTableCol"; }
 
  private:
   bool IsOfType(LayoutObjectType type) const override {
     return type == kLayoutObjectLayoutTableCol || LayoutBox::IsOfType(type);
   }
   void UpdateFromElement() override;
   void ComputePreferredLogicalWidths() override { NOTREACHED(); }
 
@@ skipping 11 matching lines @@
   LayoutTable* Table() const;
 
   unsigned span_;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTableCol, IsLayoutTableCol());
 
 }  // namespace blink
 
 #endif