Clean up toHTMLFooElement() using DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION

Source/core/html/HTMLTableRowElement.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, 2007, 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 40 matching lines @@
 
 private:
     HTMLTableRowElement(const QualifiedName&, Document&);
 };
 
 inline bool isHTMLTableRowElement(const Node* node)
 {
     return node->hasTagName(HTMLNames::trTag);
 }
 
-inline HTMLTableRowElement* toHTMLTableRowElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLTableRowElement(node));
-    return static_cast<HTMLTableRowElement*>(node);
-}
+DEFINE_NODE_TYPE_CASTS(HTMLTableRowElement, hasTagName(HTMLNames::trTag));
 
 } // namespace
 
 #endif