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

webkit/glue/webframe.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_GLUE_WEBFRAME_H_
 #define WEBKIT_GLUE_WEBFRAME_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 334 matching lines @@
   // with GetPageRect.
   // Returns the number of printed pages computed.
   virtual int ComputePageRects(const gfx::Size& page_size_px) = 0;
 
   // Retrieves the paper page's view of the web page.
   virtual void GetPageRect(int page, gfx::Rect* page_size) const = 0;
 
   // Prints one page. |page| is 0-based.
   virtual bool SpoolPage(int page, gfx::PlatformCanvas* canvas) = 0;
 
-  // Does this frame have an onunload or unbeforeunload event listener?
-  virtual bool HasUnloadListener() = 0;
-
   // Is this frame reloading with allowing stale data? This will be true when
   // the encoding of the page is changed and it needs to be re-interpreted,
   // but no additional loads should occur.
   virtual bool IsReloadAllowingStaleData() const = 0;
 
   // Only for test_shell
   virtual int PendingFrameUnloadEventCount() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebFrame);
 };
 
 #endif  // WEBKIT_GLUE_WEBFRAME_H_