Add missing closing namespace comments to wtf.

third_party/WebKit/Source/wtf/TemporaryChange.h

 /*
  * Copyright (C) 2011 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
@@ skipping 43 matching lines @@
     {
         m_scopedVariable = m_originalValue;
     }
 
 
 private:
     T& m_scopedVariable;
     T m_originalValue;
 };
 
-}
+} // namespace WTF
 
 using WTF::TemporaryChange;
 
 #endif