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

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

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Torch Mobile, Inc. http://www.torchmobile.com/
  * 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.
@@ skipping 13 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/html/parser/HTMLEntityParser.h"
 
 #include "core/html/parser/HTMLEntitySearch.h"
 #include "core/html/parser/HTMLEntityTable.h"
 #include "wtf/text/StringBuilder.h"
 
-using namespace WTF;
-
 namespace blink {
 
 static const UChar windowsLatin1ExtensionArray[32] = {
     0x20AC, 0x0081, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,  // 80-87
     0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x008D, 0x017D, 0x008F,  // 88-8F
     0x0090, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,  // 90-97
     0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x009D, 0x017E, 0x0178,  // 98-9F
 };
 
 static bool isAlphaNumeric(UChar cc) {
@@ skipping 256 matching lines @@
   size_t numberOfCodePoints =
       appendUChar32ToUCharArray(search.mostRecentMatch()->firstValue, result);
   if (!search.mostRecentMatch()->secondValue)
     return numberOfCodePoints;
   return numberOfCodePoints +
          appendUChar32ToUCharArray(search.mostRecentMatch()->secondValue,
                                    result + numberOfCodePoints);
 }
 
 }  // namespace blink