Add more missing closing namespace comments.

third_party/WebKit/Source/core/dom/PseudoElement.cpp

 /*
  * 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 175 matching lines @@
     // We can have any number of anonymous layout objects inserted between
     // us and our parent so make sure we skip over them.
     LayoutObject* ancestor = layoutObject()->parent();
     while (ancestor->isAnonymous() || (ancestor->node() && ancestor->node()->isPseudoElement())) {
         ASSERT(ancestor->parent());
         ancestor = ancestor->parent();
     }
     return ancestor->node();
 }
 
-} // namespace
+} // namespace blink