Add more missing closing namespace comments.

third_party/WebKit/Source/core/xml/XPathPath.h

 /*
  * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
  * Copyright (C) 2006, 2009 Apple Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 68 matching lines @@
 
     Value evaluate(EvaluationContext&) const override;
 
 private:
     Value::Type resultType() const override { return Value::NodeSetValue; }
 
     Member<Expression> m_filter;
     Member<LocationPath> m_path;
 };
 
-}
+} // namespace XPath
 
-}
+} // namespace blink
 #endif // XPathPath_h