Fixes the problem of the status bubble obscuring the download shelf....

chrome/browser/gtk/status_bubble_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_STATUS_BUBBLE_GTK_H_
 #define CHROME_BROWSER_GTK_STATUS_BUBBLE_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 13 matching lines @@
  public:
   StatusBubbleGtk();
   virtual ~StatusBubbleGtk();
 
   // StatusBubble implementation.
   virtual void SetStatus(const std::wstring& status);
   virtual void SetURL(const GURL& url, const std::wstring& languages);
   virtual void Hide();
   virtual void MouseMoved();
 
+  // Called when the download shelf becomes visible or invisible.
+  // This is used by to ensure that the status bubble does not obscure
+  // the download shelf, when it is visible.
+  virtual void UpdateDownloadShelfVisibility(bool visible) { }
+
   void SetStatus(const std::string& status_utf8);
 
   // Notification from our parent GtkFixed about its size. |allocation| is the
   // size of our |parent| GtkFixed, and we use it to position our status bubble
   // directly on top of the current render view.
   void SetParentAllocation(GtkWidget* parent, GtkAllocation* allocation);
 
   // Top of the widget hierarchy for a StatusBubble. This top level widget is
   // guarenteed to have its gtk_widget_name set to "status-bubble" for
   // identification.
@@ skipping 27 matching lines @@
 
   // |parent_|'s GtkAllocation. We make sure that |container_| lives along the
   // bottom of this and doesn't protrude.
   GtkAllocation parent_allocation_;
 
   // A timer that hides our window after a delay.
   ScopedRunnableMethodFactory<StatusBubbleGtk> timer_factory_;
 };
 
 #endif  // CHROME_BROWSER_GTK_STATUS_BUBBLE_GTK_H_