Merge 123062 - Crash in RenderTableSection::addCell.

Source/WebCore/rendering/RenderTable.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, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 117 matching lines @@
 
     struct ColumnStruct {
         ColumnStruct()
             : span(1)
         {
         }
 
         unsigned span;
     };
 
+    void forceSectionsRecalc()
+    {
+        setNeedsSectionRecalc();
+        recalcSections();
+    }
+
     Vector<ColumnStruct>& columns() { return m_columns; }
     Vector<int>& columnPositions() { return m_columnPos; }
     RenderTableSection* header() const { return m_head; }
     RenderTableSection* footer() const { return m_foot; }
     RenderTableSection* firstBody() const { return m_firstBody; }
 
     // This function returns 0 if the table has no section.
     RenderTableSection* topSection() const;
     RenderTableSection* bottomSection() const;
 
@@ skipping 164 matching lines @@
     ASSERT(!object || object->isTable());
     return static_cast<const RenderTable*>(object);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toRenderTable(const RenderTable*);
 
 } // namespace WebCore
 
 #endif // RenderTable_h