Introduce DEFINE_RENDER_OBJECT_TYPE_CASTS to replace manual toRenderFoo, and use it

Source/core/rendering/RenderTableRow.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 97 matching lines @@
     virtual void paint(PaintInfo&, const LayoutPoint&);
 
     virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
 
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
 
     RenderObjectChildList m_children;
     unsigned m_rowIndex : 31;
 };
 
-inline RenderTableRow* toRenderTableRow(RenderObject* object)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isTableRow());
-    return static_cast<RenderTableRow*>(object);
-}
-
-inline const RenderTableRow* toRenderTableRow(const RenderObject* object)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isTableRow());
-    return static_cast<const RenderTableRow*>(object);
-}
-
-// This will catch anyone doing an unnecessary cast.
-void toRenderTableRow(const RenderTableRow*);
+DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTableRow, isTableRow());
 
 } // namespace WebCore
 
 #endif // RenderTableRow_h