After uninstall, remove last item in Launcher folder

chrome/browser/ui/app_list/app_list_syncable_service.h

 // Copyright 2013 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_APP_LIST_APP_LIST_SYNCABLE_SERVICE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SYNCABLE_SERVICE_H_
 
 #include <map>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 53 matching lines @@
 
   ~AppListSyncableService() override;
 
   // Adds |item| to |sync_items_| and |model_|. If a sync item already exists,
   // updates the existing sync item instead.
   void AddItem(scoped_ptr<AppListItem> app_item);
 
   // Removes sync item matching |id|.
   void RemoveItem(const std::string& id);
 
+  // Removes sync item matching |id| after item uninstall.
+  void RemoveUninstalledItem(const std::string& id);
+
   // Called when properties of an item may have changed, e.g. default/oem state.
   void UpdateItem(AppListItem* app_item);
 
   // Returns the existing sync item matching |id| or NULL.
   const SyncItem* GetSyncItem(const std::string& id) const;
 
   // Sets the name of the folder for OEM apps.
   void SetOemFolderName(const std::string& name);
 
   Profile* profile() { return profile_; }
@@ skipping 130 matching lines @@
 
   // Provides integration with Drive apps.
   scoped_ptr<DriveAppProvider> drive_app_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListSyncableService);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SYNCABLE_SERVICE_H_