WTF::notFound looks too much like a local variable.

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 44 matching lines @@
 static const char charsetString[] = "charset";
 static const size_t charsetLength = sizeof("charset") - 1;
 
 String HTMLMetaCharsetParser::extractCharset(const String& value)
 {
     size_t pos = 0;
     unsigned length = value.length();
 
     while (pos < length) {
         pos = value.find(charsetString, pos, false);
-        if (pos == notFound)
+        if (pos == kNotFound)
             break;
 
         pos += charsetLength;
 
         // Skip whitespace.
         while (pos < length && value[pos] <= ' ')
             ++pos;
 
         if (value[pos] != '=')
             continue;
@@ skipping 125 matching lines @@
             return true;
         }
 
         m_token.clear();
     }
 
     return false;
 }
 
 }