Fix Border collapsing with colpsan / rowspan cells

third_party/WebKit/Source/core/paint/TableCellPainter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef TableCellPainter_h
 #define TableCellPainter_h
 
 #include "core/style/CollapsedBorderValue.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/wtf/Allocator.h"
 
 namespace blink {
 
 struct PaintInfo;
 class CollapsedBorderValue;
 class LayoutPoint;
 class LayoutRect;
 class LayoutTableCell;
 class LayoutObject;
 
 class TableCellPainter {
   STACK_ALLOCATED();
 
  public:
   TableCellPainter(const LayoutTableCell& layout_table_cell)
       : layout_table_cell_(layout_table_cell) {}
 
   void Paint(const PaintInfo&, const LayoutPoint&);
 
-  void PaintCollapsedBorders(const PaintInfo&,
-                             const LayoutPoint&,
-                             const CollapsedBorderValue&);
   void PaintContainerBackgroundBehindCell(
       const PaintInfo&,
       const LayoutPoint&,
       const LayoutObject& background_object);
   void PaintBoxDecorationBackground(const PaintInfo&,
                                     const LayoutPoint& paint_offset);
   void PaintMask(const PaintInfo&, const LayoutPoint& paint_offset);
 
  private:
   const DisplayItemClient& DisplayItemClientForBorders() const;
   LayoutRect PaintRectNotIncludingVisualOverflow(
       const LayoutPoint& paint_offset);
   void PaintBackground(const PaintInfo&,
                        const LayoutRect&,
                        const LayoutObject& background_object);
 
   const LayoutTableCell& layout_table_cell_;
 };
 
 }  // namespace blink
 
 #endif  // TableCellPainter_h