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

Source/core/html/parser/HTMLFormattingElementList.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 47 matching lines @@
 }
 
 bool HTMLFormattingElementList::contains(Element* element)
 {
     return !!find(element);
 }
 
 HTMLFormattingElementList::Entry* HTMLFormattingElementList::find(Element* element)
 {
     size_t index = m_entries.reverseFind(element);
-    if (index != notFound) {
+    if (index != kNotFound) {
         // This is somewhat of a hack, and is why this method can't be const.
         return &m_entries[index];
     }
     return 0;
 }
 
 HTMLFormattingElementList::Bookmark HTMLFormattingElementList::bookmarkFor(Element* element)
 {
     size_t index = m_entries.reverseFind(element);
-    ASSERT(index != notFound);
+    ASSERT(index != kNotFound);
     return Bookmark(&at(index));
 }
 
 void HTMLFormattingElementList::swapTo(Element* oldElement, PassRefPtr<HTMLStackItem> newItem, const Bookmark& bookmark)
 {
     ASSERT(contains(oldElement));
     ASSERT(!contains(newItem->element()));
     if (!bookmark.hasBeenMoved()) {
         ASSERT(bookmark.mark()->element() == oldElement);
         bookmark.mark()->replaceElement(newItem);
         return;
     }
     size_t index = bookmark.mark() - first();
     ASSERT_WITH_SECURITY_IMPLICATION(index < size());
     m_entries.insert(index + 1, newItem);
     remove(oldElement);
 }
 
 void HTMLFormattingElementList::append(PassRefPtr<HTMLStackItem> item)
 {
     ensureNoahsArkCondition(item.get());
     m_entries.append(item);
 }
 
 void HTMLFormattingElementList::remove(Element* element)
 {
     size_t index = m_entries.reverseFind(element);
-    if (index != notFound)
+    if (index != kNotFound)
         m_entries.remove(index);
 }
 
 void HTMLFormattingElementList::appendMarker()
 {
     m_entries.append(Entry::MarkerEntry);
 }
 
 void HTMLFormattingElementList::clearToLastMarker()
 {
@@ skipping 92 matching lines @@
         if (entry.isMarker())
             fprintf(stderr, "marker\n");
         else
             entry.element()->showNode();
     }
 }
 
 #endif
 
 }