Prioritize ARC instance only when it is needed

chrome/browser/chromeos/arc/arc_service_launcher.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_service_launcher.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h"
 #include "chrome/browser/chromeos/arc/arc_auth_service.h"
 #include "chrome/browser/chromeos/arc/arc_session_manager.h"
+#include "chrome/browser/chromeos/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.h"
 #include "chrome/browser/chromeos/arc/downloads_watcher/arc_downloads_watcher_service.h"
 #include "chrome/browser/chromeos/arc/enterprise/arc_enterprise_reporting_service.h"
 #include "chrome/browser/chromeos/arc/fileapi/arc_file_system_service.h"
 #include "chrome/browser/chromeos/arc/intent_helper/arc_settings_service.h"
 #include "chrome/browser/chromeos/arc/notification/arc_boot_error_notification.h"
 #include "chrome/browser/chromeos/arc/policy/arc_policy_bridge.h"
 #include "chrome/browser/chromeos/arc/print/arc_print_service.h"
 #include "chrome/browser/chromeos/arc/process/arc_process_service.h"
 #include "chrome/browser/chromeos/arc/tts/arc_tts_service.h"
 #include "chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.h"
 #include "chrome/browser/chromeos/arc/wallpaper/arc_wallpaper_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
 #include "components/arc/arc_service_manager.h"
 #include "components/arc/arc_session.h"
 #include "components/arc/arc_session_runner.h"
 #include "components/arc/audio/arc_audio_bridge.h"
 #include "components/arc/bluetooth/arc_bluetooth_bridge.h"
-#include "components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.h"
 #include "components/arc/clipboard/arc_clipboard_bridge.h"
 #include "components/arc/crash_collector/arc_crash_collector_bridge.h"
 #include "components/arc/ime/arc_ime_service.h"
 #include "components/arc/intent_helper/arc_intent_helper_bridge.h"
 #include "components/arc/kiosk/arc_kiosk_bridge.h"
 #include "components/arc/metrics/arc_metrics_service.h"
 #include "components/arc/net/arc_net_host_impl.h"
 #include "components/arc/obb_mounter/arc_obb_mounter_bridge.h"
 #include "components/arc/power/arc_power_bridge.h"
 #include "components/arc/storage_manager/arc_storage_manager.h"
@@ skipping 118 matching lines @@
 
 void ArcServiceLauncher::Shutdown() {
   DCHECK(arc_service_manager_);
   // Destroy in the reverse order of the initialization.
   arc_service_manager_->Shutdown();
   arc_session_manager_.reset();
   arc_service_manager_.reset();
 }
 
 }  // namespace arc