arc: Dont sync app list change caused by Arc opt out.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.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_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_
 
 #include <list>
 #include <memory>
 
@@ skipping 193 matching lines @@
       const std::string& app_id,
       int index,
       ash::ShelfItemType shelf_item_type);
 
   // Invoked when the associated browser or app is closed.
   void LauncherItemClosed(ash::ShelfID id);
 
   // Internal helpers for pinning and unpinning that handle both
   // client-triggered and internal pinning operations.
   void DoPinAppWithID(const std::string& app_id);
-  void DoUnpinAppWithID(const std::string& app_id);
+  void DoUnpinAppWithID(const std::string& app_id, bool update_prefs);
 
   // Pin a running app with |shelf_id| internally to |index|. It returns
   // the index where the item was pinned.
   int PinRunningAppInternal(int index, ash::ShelfID shelf_id);
 
   // Unpin a locked application. This is an internal call which converts the
   // model type of the given app index from a shortcut into an unpinned running
   // app.
   void UnpinRunningAppInternal(int index);
 
@@ skipping 77 matching lines @@
   // AppSyncUIStateObserver:
   void OnAppSyncUIStatusChanged() override;
 
   // AppIconLoaderDelegate:
   void OnAppImageUpdated(const std::string& app_id,
                          const gfx::ImageSkia& image) override;
 
   // app_list::AppListSyncableService::Observer:
   void OnSyncModelUpdated() override;
 
+  // Unpins shelf item and optionally updates pin prefs when |update_prefs| is
+  // set to true.
+  void UnpinAndUpdatePrefs(ash::ShelfID id, bool update_prefs);
+
   ash::ShelfModel* model_;
 
   // Profile used for prefs and loading extensions. This is NOT necessarily the
   // profile new windows are created with.
   Profile* profile_;
 
   // Controller items in this map are owned by |ShelfModel|.
   IDToItemControllerMap id_to_item_controller_map_;
 
   // Direct access to app_id for a web contents.
@@ skipping 35 matching lines @@
   typedef std::vector<std::string> RunningAppListIds;
   typedef std::map<std::string, RunningAppListIds> RunningAppListIdMap;
   RunningAppListIdMap last_used_running_application_order_;
 
   base::WeakPtrFactory<ChromeLauncherControllerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherControllerImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_