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

Source/core/html/HTMLTextFormControlElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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
@@ skipping 114 matching lines @@
         stripped.append(character);
     }
     return stripped.toString();
 }
 
 static bool isNotLineBreak(UChar ch) { return ch != newlineCharacter && ch != carriageReturn; }
 
 bool HTMLTextFormControlElement::isPlaceholderEmpty() const
 {
     const AtomicString& attributeValue = fastGetAttribute(placeholderAttr);
-    return attributeValue.string().find(isNotLineBreak) == notFound;
+    return attributeValue.string().find(isNotLineBreak) == kNotFound;
 }
 
 bool HTMLTextFormControlElement::placeholderShouldBeVisible() const
 {
     return supportsPlaceholder()
         && isEmptyValue()
         && isEmptySuggestedValue()
         && !isPlaceholderEmpty()
         && (document().focusedElement() != this || (RenderTheme::theme().shouldShowPlaceholderWhenFocused()))
         && (!renderer() || renderer()->style()->visibility() == VISIBLE);
@@ skipping 499 matching lines @@
             bool isAuto;
             TextDirection textDirection = static_cast<const HTMLElement*>(element)->directionalityIfhasDirAutoAttribute(isAuto);
             return textDirection == RTL ? "rtl" : "ltr";
         }
     }
 
     return "ltr";
 }
 
 } // namespace Webcore