[M53 cherry-pick] Migrate ArcUserDataService into ArcAuthService.

chrome/browser/chromeos/arc/arc_auth_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_SERVICE_H_
 #define CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_SERVICE_H_
 
 #include <memory>
 #include <ostream>
 #include <string>
@@ skipping 163 matching lines @@
   void OnContextReady() override;
   void OnPrepareContextFailed() override;
 
   // ArcAndroidManagementCheckerDelegate:
   void OnAndroidManagementChecked(
       policy::AndroidManagementClient::Result result) override;
 
   // Stops ARC without changing ArcEnabled preference.
   void StopArc();
 
+  // StopArc(), then EnableArc(). Between them data clear may happens.
+  // This is a special method to support enterprise device lost case.
+  // This can be called only when ARC is running.
+  void StopAndEnableArc();
+
+  // Removes the data if ARC is stopped. Otherwise, queue to remove the data
+  // on ARC is stopped.
+  void RemoveArcData();
+
   // Returns current page that has to be shown in OptIn UI.
   UIPage ui_page() const { return ui_page_; }
 
   // Returns current page status, relevant to the specific page.
   const base::string16& ui_page_status() { return ui_page_status_; }
 
  private:
   void StartArc();
   void ShowUI(UIPage page, const base::string16& status);
   void CloseUI();
   void SetUIPage(UIPage page, const base::string16& status);
   void SetState(State state);
   void ShutdownBridge();
   void ShutdownBridgeAndCloseUI();
   void ShutdownBridgeAndShowUI(UIPage page, const base::string16& status);
   void OnOptInPreferenceChanged();
   void StartUI();
   void StartAndroidManagementClient();
   void CheckAndroidManagement(bool background_mode);
   void StartArcIfSignedIn();
+  void OnArcDataRemoved(bool success);
 
   // Unowned pointer. Keeps current profile.
   Profile* profile_ = nullptr;
 
   // Registrar used to monitor ARC enabled state.
   PrefChangeRegistrar pref_change_registrar_;
 
   mojo::Binding<AuthHost> binding_;
   State state_ = State::NOT_INITIALIZED;
   base::ObserverList<Observer> observer_list_;
   std::unique_ptr<ArcAppLauncher> playstore_launcher_;
   std::string auth_code_;
   GetAuthCodeCallback auth_callback_;
   bool initial_opt_in_ = false;
   bool disable_arc_from_ui_ = false;
   UIPage ui_page_ = UIPage::NO_PAGE;
   base::string16 ui_page_status_;
   bool clear_required_ = false;
+  bool reenable_arc_ = false;
   bool waiting_for_reply_ = false;
 
   std::unique_ptr<ArcAuthContext> context_;
   std::unique_ptr<ArcAndroidManagementChecker> android_management_checker_;
 
   base::Time sign_in_time_;
 
   base::WeakPtrFactory<ArcAuthService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcAuthService);
 };
 
 std::ostream& operator<<(std::ostream& os, const ArcAuthService::State& state);
 
 }  // namespace arc
 
 #endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_SERVICE_H_