Skip a few "using namespace" that we don't really need.

third_party/WebKit/Source/core/html/parser/HTMLMetaCharsetParser.cpp

 /*
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 14 matching lines @@
 
 #include "core/html/parser/HTMLMetaCharsetParser.h"
 
 #include "core/HTMLNames.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/html/parser/HTMLParserOptions.h"
 #include "core/html/parser/HTMLTokenizer.h"
 #include "wtf/text/TextEncodingRegistry.h"
 #include "wtf/text/WTFString.h"
 
-using namespace WTF;
-
 namespace blink {
 
 using namespace HTMLNames;
 
 HTMLMetaCharsetParser::HTMLMetaCharsetParser()
     : m_tokenizer(HTMLTokenizer::create(HTMLParserOptions(0))),
       m_assumedCodec(newTextCodec(Latin1Encoding())),
       m_inHeadSection(true),
       m_doneChecking(false) {}
 
@@ skipping 74 matching lines @@
       return true;
     }
 
     m_token.clear();
   }
 
   return false;
 }
 
 }  // namespace blink