Change old code from "unloadListnerChanged" model to new WebKit EnableSuddenT...

third_party/WebKit/WebCore/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * 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 428 matching lines @@
     CSSStyleSheet* elementSheet();
     CSSStyleSheet* mappedElementSheet();
     virtual Tokenizer* createTokenizer();
     Tokenizer* tokenizer() { return m_tokenizer; }
     
     bool printing() const { return m_printing; }
     void setPrinting(bool p) { m_printing = p; }
 
     enum ParseMode { Compat, AlmostStrict, Strict };
 
-    // Used by Chromium to know if it can just SIGKILL a renderer when navigating
-    bool hasUnloadEventListener();
-
 private:
     virtual void determineParseMode() {}
     
 public:
     void setParseMode(ParseMode m) { m_parseMode = m; }
     ParseMode parseMode() const { return m_parseMode; }
 
     bool inCompatMode() const { return m_parseMode == Compat; }
     bool inAlmostStrictMode() const { return m_parseMode == AlmostStrict; }
     bool inStrictMode() const { return m_parseMode == Strict; }
@@ skipping 640 matching lines @@
 }
     
 inline bool Node::isDocumentNode() const
 {
     return this == m_document.get();
 }
 
 } // namespace WebCore
 
 #endif // Document_h