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

third_party/WebKit/Source/core/layout/LayoutTableRow.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, 2007, 2008, 2009, 2010, 2013
 *                Apple Inc.
  *               All rights reserved.
  *
@@ skipping 80 matching lines @@
     // Most table componenents can rely on LayoutObject::styleDidChange
     // to mark the container chain dirty. But LayoutTableSection seems
     // to never clear its dirty bit, which stops the propagation. So
     // anything under LayoutTableSection has to restart the propagation
     // at the table.
     // TODO(dgrogan): Make LayoutTableSection clear its dirty bit.
     table->SetPreferredLogicalWidthsDirty();
   }
 }
 
-const BorderValue& LayoutTableRow::BorderAdjoiningStartCell(
+BorderValue LayoutTableRow::BorderAdjoiningStartCell(
     const LayoutTableCell* cell) const {
 #if DCHECK_IS_ON()
   DCHECK(cell->IsFirstOrLastCellInRow());
 #endif
   // FIXME: https://webkit.org/b/79272 - Add support for mixed directionality at
   // the cell level.
   return Style()->BorderStart();
 }
 
-const BorderValue& LayoutTableRow::BorderAdjoiningEndCell(
+BorderValue LayoutTableRow::BorderAdjoiningEndCell(
     const LayoutTableCell* cell) const {
 #if DCHECK_IS_ON()
   DCHECK(cell->IsFirstOrLastCellInRow());
 #endif
   // FIXME: https://webkit.org/b/79272 - Add support for mixed directionality at
   // the cell level.
   return Style()->BorderEnd();
 }
 
 void LayoutTableRow::AddChild(LayoutObject* child, LayoutObject* before_child) {
@@ skipping 204 matching lines @@
   // won't fit but we avoid the complexity of that reading until it
   // is clarified. Tracked by crbug.com/675904
   if (RowIndex())
     return false;
   LayoutTableSection* header = Table()->Header();
   return header && Table()->SectionAbove(Section()) == header &&
          header->GetPaginationBreakability() != kAllowAnyBreaks;
 }
 
 }  // namespace blink