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

Source/core/editing/InsertTextCommand.cpp

 /*
  * Copyright (C) 2005 Apple Computer, 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 111 matching lines @@
     Position endPosition = Position(textNode.release(), start.offsetInContainerNode() + text.length());
     setEndingSelectionWithoutValidation(start, endPosition);
     if (!selectInsertedText)
         setEndingSelection(VisibleSelection(endingSelection().visibleEnd(), endingSelection().isDirectional()));
 
     return true;
 }
 
 void InsertTextCommand::doApply()
 {
-    ASSERT(m_text.find('\n') == notFound);
+    ASSERT(m_text.find('\n') == kNotFound);
 
     if (!endingSelection().isNonOrphanedCaretOrRange())
         return;
 
     // Delete the current selection.
     // FIXME: This delete operation blows away the typing style.
     if (endingSelection().isRange()) {
         if (performTrivialReplace(m_text, m_selectInsertedText))
             return;
         deleteSelection(false, true, true, false, false);
@@ skipping 121 matching lines @@
                 splitTextNode(textNode, offset);
             insertNodeBefore(spanNode, textNode.release());
         }
     }
 
     // return the position following the new tab
     return lastPositionInNode(spanNode.get());
 }
 
 }