[Merge-M53] arc: Don't sync app list change caused by Arc opt out.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
index ba8cc6fb5ff196e45042a869a6122e38ec33a28b..4d287e3a63950cfe4d506c844472841826d42a8c 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
@@ -218,7 +218,7 @@ class ChromeLauncherControllerImpl
   // 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.
@@ -318,6 +318,10 @@ class ChromeLauncherControllerImpl
   // 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_;
 
   ash::ShelfItemDelegateManager* item_delegate_manager_ = nullptr;