[Mac] DownloadShelf should be notified when autoclosing.

chrome/browser/ui/gtk/download/download_shelf_gtk.h

 // Copyright (c) 2012 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_UI_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_
 #define CHROME_BROWSER_UI_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <vector>
@@ skipping 52 matching lines @@
   int GetHeight() const;
 
   // MessageLoop::Observer implementation:
   virtual void WillProcessEvent(GdkEvent* event) OVERRIDE;
   virtual void DidProcessEvent(GdkEvent* event) OVERRIDE;
 
  protected:
   // DownloadShelf implementation.
   virtual void DoAddDownload(content::DownloadItem* download) OVERRIDE;
   virtual void DoShow() OVERRIDE;
-  virtual void DoClose() OVERRIDE;
+  virtual void DoClose(CloseReason reason) OVERRIDE;
 
  private:
   // Remove |download_item| from the download shelf and delete it.
   void RemoveDownloadItem(DownloadItemGtk* download_item);
 
   // Get the hbox download items ought to pack themselves into.
   GtkWidget* GetHBox() const;
 
   // Show more hidden download items if there is enough space in the shelf.
   // It's called when a download item is removed from the shelf or an item's
@@ skipping 67 matching lines @@
   // True if the mouse is within the shelf's bounds, as of the last mouse event
   // we received.
   bool mouse_in_shelf_;
 
   base::WeakPtrFactory<DownloadShelfGtk> weak_factory_;
 
   friend class DownloadItemGtk;
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_