Always use arc::InstanceHolder<T>::GetInstanceForMethod

chrome/browser/chromeos/arc/arc_enterprise_reporting_service.cc

 // Copyright 2016 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.
 
 #include "chrome/browser/chromeos/arc/arc_enterprise_reporting_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/chromeos/arc/arc_auth_service.h"
 #include "components/arc/arc_service_manager.h"
 #include "components/arc/user_data/arc_user_data_service.h"
 
 namespace arc {
 
 ArcEnterpriseReportingService::ArcEnterpriseReportingService(
     ArcBridgeService* bridge_service)
     : ArcService(bridge_service), binding_(this), weak_ptr_factory_(this) {
   arc_bridge_service()->enterprise_reporting()->AddObserver(this);
 }
 
 ArcEnterpriseReportingService::~ArcEnterpriseReportingService() {
   DCHECK(thread_checker_.CalledOnValidThread());
   arc_bridge_service()->enterprise_reporting()->RemoveObserver(this);
 }
 
 void ArcEnterpriseReportingService::OnInstanceReady() {
   DCHECK(thread_checker_.CalledOnValidThread());
-  arc_bridge_service()->enterprise_reporting()->instance()->Init(
-      binding_.CreateInterfacePtrAndBind());
+  auto* instance =
+      arc_bridge_service()->enterprise_reporting()->GetInstanceForMethod(
+          "Init");
+  if (!instance)
+    return;
+  instance->Init(binding_.CreateInterfacePtrAndBind());
 }
 
 void ArcEnterpriseReportingService::ReportManagementState(
     mojom::ManagementState state) {
   DCHECK(thread_checker_.CalledOnValidThread());
   VLOG(1) << "ReportManagementState state=" << state;
 
   if (state == mojom::ManagementState::MANAGED_DO_LOST) {
     DCHECK(arc::ArcServiceManager::Get());
     ArcAuthService::Get()->RemoveArcData();
     ArcAuthService::Get()->StopAndEnableArc();
   }
 }
 
 }  // namespace arc