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

Source/core/page/WindowFeatures.cpp

 /*
  *  Copyright (C) 2000 Harri Porten (porten@kde.org)
  *  Copyright (C) 2006 Jon Shier (jshier@iastate.edu)
  *  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reseved.
  *  Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
@@ skipping 226 matching lines @@
 void WindowFeatures::parseDialogFeatures(const String& string, DialogFeaturesMap& map)
 {
     Vector<String> vector;
     string.split(';', vector);
     size_t size = vector.size();
     for (size_t i = 0; i < size; ++i) {
         const String& featureString = vector[i];
 
         size_t separatorPosition = featureString.find('=');
         size_t colonPosition = featureString.find(':');
-        if (separatorPosition != notFound && colonPosition != notFound)
+        if (separatorPosition != kNotFound && colonPosition != kNotFound)
             continue; // ignore strings that have both = and :
-        if (separatorPosition == notFound)
+        if (separatorPosition == kNotFound)
             separatorPosition = colonPosition;
 
         String key = featureString.left(separatorPosition).stripWhiteSpace().lower();
 
         // Null string for value indicates key without value.
         String value;
-        if (separatorPosition != notFound) {
+        if (separatorPosition != kNotFound) {
             value = featureString.substring(separatorPosition + 1).stripWhiteSpace().lower();
             value = value.left(value.find(' '));
         }
 
         map.set(key, value);
     }
 }
 
 } // namespace WebCore