Linux: fix icon theme double free on shutdown....

chrome/browser/gtk/download_item_gtk.h

 // Copyright (c) 2009 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 CHROME_BROWSER_GTK_DOWNLOAD_ITEM_GTK_H_
 #define CHROME_BROWSER_GTK_DOWNLOAD_ITEM_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include "app/animation.h"
@@ skipping 136 matching lines @@
   GtkWidget* bounding_widget_;
 
   // The dangerous download dialog. This will be null for safe downloads.
   GtkWidget* dangerous_prompt_;
 
   // An hbox for holding components of the dangerous download dialog.
   GtkWidget* dangerous_hbox_;
   int dangerous_hbox_start_width_;
   int dangerous_hbox_full_width_;
 
-  // The ID of the handler for the parent shelf's "size-allocate" event. We save
-  // it so we can disconnect when we are destroyed.
-  gulong resize_handler_id_;
-
   // The animation when this item is first added to the shelf.
   scoped_ptr<SlideAnimation> new_item_animation_;
 
   // Progress animation.
   base::RepeatingTimer<DownloadItemGtk> progress_timer_;
 
   // Animation for download complete.
   scoped_ptr<SlideAnimation> complete_animation_;
 
   // The file icon for the download. May be null.
   SkBitmap* icon_;
 
   // For canceling an in progress icon request.
   CancelableRequestConsumerT<int, 0> icon_consumer_;
 };
 
 #endif  // CHROME_BROWSER_GTK_DOWNLOAD_ITEM_GTK_H_