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

Source/modules/filesystem/DOMFilePath.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 99 matching lines @@
     }
     return result;
 }
 
 bool DOMFilePath::isValidPath(const String& path)
 {
     if (path.isEmpty() || path == DOMFilePath::root)
         return true;
 
     // Embedded NULs are not allowed.
-    if (path.find(static_cast<UChar>(0)) != WTF::notFound)
+    if (path.find(static_cast<UChar>(0)) != WTF::kNotFound)
         return false;
 
     // While not [yet] restricted by the spec, '\\' complicates implementation for Chromium.
-    if (path.find('\\') != WTF::notFound)
+    if (path.find('\\') != WTF::kNotFound)
         return false;
 
     // This method is only called on fully-evaluated absolute paths. Any sign of ".." or "." is likely an attempt to break out of the sandbox.
     Vector<String> components;
     path.split(DOMFilePath::separator, components);
     for (size_t i = 0; i < components.size(); ++i) {
         if (components[i] == ".")
             return false;
         if (components[i] == "..")
             return false;
     }
     return true;
 }
 
 bool DOMFilePath::isValidName(const String& name)
 {
     if (name.isEmpty())
         return true;
     // '/' is not allowed in name.
     if (name.contains('/'))
         return false;
     return isValidPath(name);
 }
 
 } // namespace WebCore