For Mac, add AppListViewDelegateObserver::OnShutdown

ui/app_list/views/app_list_view.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 UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
 #define UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
@@ skipping 82 matching lines @@
   virtual gfx::Size GetPreferredSize() const OVERRIDE;
   virtual void Paint(gfx::Canvas* canvas,
                      const views::CullSet& cull_set) OVERRIDE;
   virtual void OnThemeChanged() OVERRIDE;
 
   // WidgetDelegate overrides:
   virtual bool ShouldHandleSystemCommands() const OVERRIDE;
 
   // Overridden from AppListViewDelegateObserver:
   virtual void OnProfilesChanged() OVERRIDE;
+  virtual void OnShutdown() OVERRIDE;
 
   void Prerender();
 
   void SetProfileByPath(const base::FilePath& profile_path);
 
   void AddObserver(AppListViewObserver* observer);
   void RemoveObserver(AppListViewObserver* observer);
 
   // Set a callback to be called the next time any app list paints.
   void SetNextPaintCallback(const base::Closure& callback);
@@ skipping 60 matching lines @@
 
   // For UMA and testing. If non-null, triggered when the app list is painted.
   base::Closure next_paint_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_