Fix table background painting

third_party/WebKit/Source/core/paint/TableSectionPainter.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 TableSectionPainter_h
 #define TableSectionPainter_h
 
 #include "core/paint/PaintPhase.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class CollapsedBorderValue;
 class LayoutPoint;
 class LayoutTableCell;
 class LayoutTableSection;
 struct PaintInfo;
+class TableCollapsedBorderPainter;
 
 class TableSectionPainter {
     STACK_ALLOCATED();
 public:
     TableSectionPainter(const LayoutTableSection& layoutTableSection) : m_layoutTableSection(layoutTableSection) { }
 
     void paint(const PaintInfo&, const LayoutPoint&);
     void paintCollapsedBorders(const PaintInfo&, const LayoutPoint&, const CollapsedBorderValue&);
+    void paintCollapsedBorders2(const PaintInfo&, const LayoutPoint&, TableCollapsedBorderPainter& previousPainter);
 
 private:
     void paintObject(const PaintInfo&, const LayoutPoint&);
     void paintCell(const LayoutTableCell&, PaintPhase originalPaintPhase, const PaintInfo&, const LayoutPoint&);
 
     const LayoutTableSection& m_layoutTableSection;
 };
 
 } // namespace blink
 
 #endif // TableSectionPainter_h