Add more missing closing namespace comments.

third_party/WebKit/Source/core/loader/FrameLoaderTypes.h

 /*
  * Copyright (C) 2006 Apple Computer, 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 83 matching lines @@
     BackForwardCommit,
     InitialCommitInChildFrame,
     HistoryInertCommit
 };
 
 enum HistoryScrollRestorationType {
     ScrollRestorationAuto,
     ScrollRestorationManual
 };
 
-}
+} // namespace blink
 
 #endif