Add more missing closing namespace comments.

third_party/WebKit/Source/core/layout/line/TrailingObjects.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2014 Adobe Systems Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 52 matching lines @@
         unsigned length = m_whitespace.textLength();
         unsigned pos = length >= 2 ? length - 2 : UINT_MAX;
         InlineIterator endMid(0, m_whitespace, pos);
         lineMidpointState.startIgnoringSpaces(endMid);
         for (size_t i = 0; i < m_objects.size(); ++i) {
             ensureLineBoxInsideIgnoredSpaces(&lineMidpointState, m_objects[i]);
         }
     }
 }
 
-}
+} // namespace blink