Add more missing closing namespace comments.

third_party/WebKit/Source/core/svg/SVGParserUtilities.cpp

 /*
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007, 2009, 2013 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.
@@ skipping 232 matching lines @@
     if (string.is8Bit()) {
         const LChar* ptr = string.characters8();
         const LChar* end = ptr + string.length();
         return genericParseNumberOrPercentage(ptr, end, number);
     }
     const UChar* ptr = string.characters16();
     const UChar* end = ptr + string.length();
     return genericParseNumberOrPercentage(ptr, end, number);
 }
 
-}
+} // namespace blink