GTTF: Add missing virtual destructors.

chrome/browser/ui/gtk/avatar_menu_item_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_AVATAR_MENU_ITEM_GTK_H_
 #define CHROME_BROWSER_UI_GTK_AVATAR_MENU_ITEM_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include "chrome/browser/profiles/avatar_menu_model.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/gtk/owned_widget_gtk.h"
 
 class GtkThemeService;
 
 // This widget contains the profile icon, user name, and synchronization status
 // to be displayed in the AvatarMenuBubble. Clicking the profile will open a new
 // browser window, and when the user hovers over an active profile item, a link
 // is displayed that will allow editing the profile.
 class AvatarMenuItemGtk : public content::NotificationObserver {
  public:
   // Delegates opening or editing a profile.
   class Delegate {
    public:
+    virtual ~Delegate() { }
+
     // Open a new browser window using the profile at |profile_index|.
     virtual void OpenProfile(size_t profile_index) = 0;
 
     // Edit the profile given by |profile_index|.
     virtual void EditProfile(size_t profile_index) = 0;
   };
 
   AvatarMenuItemGtk(Delegate* delegate,
                     const AvatarMenuModel::Item& item,
                     size_t item_index,
@@ skipping 68 matching lines @@
   // The unhighlighted color. Depending on the theme, this is either NULL or a
   // pointer to static data.
   const GdkColor* unhighlighted_color_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AvatarMenuItemGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_AVATAR_MENU_ITEM_GTK_H_