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

third_party/WebKit/WebCore/loader/FrameLoader.h

 /*
  * Copyright (C) 2006, 2007 Apple 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
@@ skipping 448 matching lines @@
         bool shouldAllowNavigation(Frame* targetFrame) const;
         Frame* findFrameForNavigation(const AtomicString& name);
 
         void startIconLoader();
 
         void applyUserAgent(ResourceRequest& request);
 
         bool firingUnloadEvents() { return m_firingUnloadEvents; }
         void setFiringUnloadEvents(bool value) { m_firingUnloadEvents = value; }
 
-        void unloadListenerChanged();
-
     private:
         PassRefPtr<HistoryItem> createHistoryItem(bool useOriginal);
         PassRefPtr<HistoryItem> createHistoryItemTree(Frame* targetFrame, bool clipAtTarget);
 
         void addBackForwardItemClippedAtTarget(bool doClip);
         void restoreScrollPositionAndViewState();
         void saveDocumentState();
         void loadItem(HistoryItem*, FrameLoadType);
         bool urlsMatchItem(HistoryItem*) const;
         void invalidateCurrentItemCachedPage();
@@ skipping 212 matching lines @@
         bool m_needToSwitchOutLowBandwidthDisplay;
         
         String m_pendingSourceInLowBandwidthDisplay;        
         HashSet<CachedResource*> m_externalRequestsInLowBandwidthDisplay;
 #endif
     };
 
 }
 
 #endif