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

Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 26 matching lines @@
 #include "core/editing/TypingCommand.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/page/EditorClient.h"
 #include "core/page/EventHandler.h"
 #include "core/page/Frame.h"
 #include "core/rendering/RenderObject.h"
 
 namespace WebCore {
 
 PlainTextOffsets::PlainTextOffsets()
-    : m_start(notFound)
-    , m_end(notFound)
+    : m_start(kNotFound)
+    , m_end(kNotFound)
 {
 }
 
 PlainTextOffsets::PlainTextOffsets(int start, int end)
     : m_start(start)
     , m_end(end)
 {
-    ASSERT(start != notFound);
-    ASSERT(end != notFound);
+    ASSERT(start != kNotFound);
+    ASSERT(end != kNotFound);
     ASSERT(start <= end);
 }
 
 // ----------------------------
 
 InputMethodController::SelectionOffsetsScope::SelectionOffsetsScope(InputMethodController* inputMethodController)
     : m_inputMethodController(inputMethodController)
     , m_offsets(inputMethodController->getSelectionOffsets())
 {
 }
@@ skipping 307 matching lines @@
 
 bool InputMethodController::setSelectionOffsets(const PlainTextOffsets& selectionOffsets)
 {
     if (selectionOffsets.isNull())
         return false;
     // FIXME: We should move Editor::setSelectionOffsets() into InputMethodController class.
     return editor().setSelectionOffsets(selectionOffsets.start(), selectionOffsets.end());
 }
 
 } // namespace WebCore