Add more missing closing namespace comments.

third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp

 /*
  * Copyright (C) 2006 Lars Knoll <lars@trolltech.com>
  * Copyright (C) 2007, 2011, 2012 Apple Inc. All rights reserved.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 826 matching lines @@
         "$Ori1 $OriV $Ori0;"               // Gujarati Virama (backward)
         "$Tel1 $TelV $Tel0;"               // Telugu Virama (backward)
         "$Kan1 $KanV $Kan0;"               // Kannada Virama (backward)
         "$Mal1 $MalV $Mal0;"               // Malayalam Virama (backward)
         "!!safe_reverse;"
         "!!safe_forward;";
 
     return setUpIteratorWithRules(kRules, string, length);
 }
 
-}
+} // namespace blink