Add a comment to IsInitialized() to discourage devs to call it

components/arc/arc_service_manager.h

 // Copyright 2015 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 COMPONENTS_ARC_ARC_SERVICE_MANAGER_H_
 #define COMPONENTS_ARC_ARC_SERVICE_MANAGER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 33 matching lines @@
   ArcBridgeService* arc_bridge_service();
 
   // Adds a service to the managed services list.
   void AddService(std::unique_ptr<ArcService> service);
 
   // Gets the global instance of the ARC Service Manager. This can only be
   // called on the thread that this class was created on.
   static ArcServiceManager* Get();
 
   // Returns if the ARC Service Manager instance exists.
+  // DO NOT CALL THIS. This function is a dirty workaround for properly shutting
+  // down chrome/browser/chromeos/extensions/file_manager/event_router.cc, and
+  // will likely be removed in the future.
   static bool IsInitialized();
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Called to shut down all ARC services.
   void Shutdown();
 
   scoped_refptr<base::TaskRunner> blocking_task_runner() const {
     return blocking_task_runner_;
@@ skipping 32 matching lines @@
   scoped_refptr<LocalActivityResolver> activity_resolver_;
 
   base::ObserverList<Observer> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcServiceManager);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_SERVICE_MANAGER_H_