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

Source/wtf/Vector.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008 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.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 689 matching lines @@
     {
         swap(other);
         return *this;
     }
 #endif
 
     template<typename T, size_t inlineCapacity>
     template<typename U>
     bool Vector<T, inlineCapacity>::contains(const U& value) const
     {
-        return find(value) != notFound;
+        return find(value) != kNotFound;
     }
 
     template<typename T, size_t inlineCapacity>
     template<typename U>
     size_t Vector<T, inlineCapacity>::find(const U& value) const
     {
         const T* b = begin();
         const T* e = end();
         for (const T* iter = b; iter < e; ++iter) {
             if (*iter == value)
                 return iter - b;
         }
-        return notFound;
+        return kNotFound;
     }
 
     template<typename T, size_t inlineCapacity>
     template<typename U>
     size_t Vector<T, inlineCapacity>::reverseFind(const U& value) const
     {
         const T* b = begin();
         const T* iter = end();
         while (iter > b) {
             --iter;
             if (*iter == value)
                 return iter - b;
         }
-        return notFound;
+        return kNotFound;
     }
 
     template<typename T, size_t inlineCapacity>
     void Vector<T, inlineCapacity>::fill(const T& val, size_t newSize)
     {
         if (size() > newSize)
             shrink(newSize);
         else if (newSize > capacity()) {
             clear();
             reserveCapacity(newSize);
@@ skipping 317 matching lines @@
     inline bool operator!=(const Vector<T, inlineCapacity>& a, const Vector<T, inlineCapacity>& b)
     {
         return !(a == b);
     }
 
 } // namespace WTF
 
 using WTF::Vector;
 
 #endif // WTF_Vector_h