Add more missing closing namespace comments.

third_party/WebKit/Source/core/dom/shadow/ComposedTreeTraversal.h

 /*
  * Copyright (C) 2012 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 291 matching lines @@
 inline Node* ComposedTreeTraversal::traverseFirstChild(const Node& node)
 {
     return traverseChild(node, TraversalDirectionForward);
 }
 
 inline Node* ComposedTreeTraversal::traverseLastChild(const Node& node)
 {
     return traverseChild(node, TraversalDirectionBackward);
 }
 
-} // namespace
+} // namespace blink
 
 #endif