Add more missing closing namespace comments.

third_party/WebKit/Source/core/html/parser/HTMLEntitySearch.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 106 matching lines @@
         if (m_first == m_last && compare(m_first, nextCharacter) != Prefix)
             return fail();
     }
     ++m_currentLength;
     if (m_first->length != m_currentLength) {
         return;
     }
     m_mostRecentMatch = m_first;
 }
 
-}
+} // namespace blink