Add more missing closing namespace comments.

third_party/WebKit/Source/platform/fonts/SymbolsIterator.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "SymbolsIterator.h"
 
 #include <unicode/uchar.h>
 #include <unicode/uniset.h>
 
 namespace blink {
@@ skipping 135 matching lines @@
             *fontFallbackPriority = m_previousFontFallbackPriority;
             return true;
         }
     }
     *symbolsLimit = m_bufferSize;
     *fontFallbackPriority = m_currentFontFallbackPriority;
     m_atEnd = true;
     return true;
 }
 
-}
+} // namespace blink