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

third_party/WebKit/Source/core/layout/LayoutTableSection.cpp

 /*
  * 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, 2008, 2009, 2010, 2013 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
@@ skipping 1739 matching lines @@
     for (unsigned c = result; c < n_cols; ++c) {
       const CellStruct& cell = CellAt(r, c);
       if (cell.HasCells() || cell.in_col_span)
         result = c;
     }
   }
 
   return result + 1;
 }
 
-const BorderValue& LayoutTableSection::BorderAdjoiningStartCell(
+BorderValue LayoutTableSection::BorderAdjoiningStartCell(
     const LayoutTableCell* cell) const {
 #if DCHECK_IS_ON()
   DCHECK(cell->IsFirstOrLastCellInRow());
 #endif
   return HasSameDirectionAs(cell) ? Style()->BorderStart()
                                   : Style()->BorderEnd();
 }
 
-const BorderValue& LayoutTableSection::BorderAdjoiningEndCell(
+BorderValue LayoutTableSection::BorderAdjoiningEndCell(
     const LayoutTableCell* cell) const {
 #if DCHECK_IS_ON()
   DCHECK(cell->IsFirstOrLastCellInRow());
 #endif
   return HasSameDirectionAs(cell) ? Style()->BorderEnd()
                                   : Style()->BorderStart();
 }
 
 const LayoutTableCell* LayoutTableSection::FirstRowCellAdjoiningTableStart()
     const {
@@ skipping 388 matching lines @@
 bool LayoutTableSection::PaintedOutputOfObjectHasNoEffectRegardlessOfSize()
     const {
   // LayoutTableSection paints background from columns.
   if (Table()->HasColElements())
     return false;
   return LayoutTableBoxComponent::
       PaintedOutputOfObjectHasNoEffectRegardlessOfSize();
 }
 
 }  // namespace blink