Add more missing closing namespace comments.

third_party/WebKit/Source/core/events/ScopedEventQueue.h

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 55 matching lines @@
 };
 
 class EventQueueScope {
     WTF_MAKE_NONCOPYABLE(EventQueueScope);
     STACK_ALLOCATED();
 public:
     EventQueueScope() { ScopedEventQueue::instance()->incrementScopingLevel(); }
     ~EventQueueScope() { ScopedEventQueue::instance()->decrementScopingLevel(); }
 };
 
-}
+} // namespace blink
 
 #endif // ScopedEventQueue_h