Add more missing closing namespace comments.

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

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 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 98 matching lines @@
     return isScopeMarker(item)
         || item->hasTagName(buttonTag);
 }
 
 inline bool isSelectScopeMarker(HTMLStackItem* item)
 {
     return !item->hasTagName(optgroupTag)
         && !item->hasTagName(optionTag);
 }
 
-}
+} // namespace
 
 HTMLElementStack::ElementRecord::ElementRecord(PassRefPtrWillBeRawPtr<HTMLStackItem> item, PassOwnPtrWillBeRawPtr<ElementRecord> next)
     : m_item(item)
     , m_next(next)
 {
     ASSERT(m_item);
 }
 
 #if !ENABLE(OILPAN)
 HTMLElementStack::ElementRecord::~ElementRecord()
@@ skipping 496 matching lines @@
 #ifndef NDEBUG
 
 void HTMLElementStack::show()
 {
     for (ElementRecord* record = m_top.get(); record; record = record->next())
         record->element()->showNode();
 }
 
 #endif
 
-}
+} // namespace blink