Add more missing closing namespace comments.

third_party/WebKit/Source/core/editing/commands/SmartReplaceCF.cpp

 /*
  * Copyright (C) 2007 Apple 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
@@ skipping 51 matching lines @@
         }
     }
     return smartSet;
 }
 
 bool isCharacterSmartReplaceExempt(UChar32 c, bool isPreviousCharacter)
 {
     return CFCharacterSetIsLongCharacterMember(getSmartSet(isPreviousCharacter), c);
 }
 
-}
+} // namespace blink