Introduce DEFINE_RENDER_OBJECT_TYPE_CASTS to replace manual toRenderFoo, and use it

Source/core/rendering/RenderTableSection.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 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 290 matching lines @@
     HashSet<RenderTableCell*> m_overflowingCells;
     bool m_forceSlowPaintPathWithOverflowingCell;
 
     bool m_hasMultipleCellLevels;
 
     // This map holds the collapsed border values for cells with collapsed borders.
     // It is held at RenderTableSection level to spare memory consumption by table cells.
     HashMap<pair<const RenderTableCell*, int>, CollapsedBorderValue > m_cellsCollapsedBorders;
 };
 
-inline RenderTableSection* toRenderTableSection(RenderObject* object)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isTableSection());
-    return static_cast<RenderTableSection*>(object);
-}
-
-inline const RenderTableSection* toRenderTableSection(const RenderObject* object)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isTableSection());
-    return static_cast<const RenderTableSection*>(object);
-}
-
-// This will catch anyone doing an unnecessary cast.
-void toRenderTableSection(const RenderTableSection*);
+DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTableSection, isTableSection());
 
 } // namespace WebCore
 
 #endif // RenderTableSection_h