Adds a new checkbox for backup and restore in opt-in flow.

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>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/arc/arc_android_management_checker_delegate.h"
 #include "chrome/browser/chromeos/arc/arc_auth_context_delegate.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/arc/arc_service.h"
 #include "components/arc/common/auth.mojom.h"
 #include "components/prefs/pref_change_registrar.h"
 #include "components/syncable_prefs/pref_service_syncable_observer.h"
 #include "components/syncable_prefs/synced_pref_observer.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 class ArcAppLauncher;
 class Profile;
+class ProfileOAuth2TokenService;

[xiyuan, 2016/06/29 21:36:38]

not used?

[malaykeshav, 2016/06/30 02:46:19]

Missed it while merging with ToT.
Done

+class PrefRegistrySimple;
 
 namespace ash {
 class ShelfDelegate;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace arc {
@@ skipping 49 matching lines @@
   };
 
   explicit ArcAuthService(ArcBridgeService* bridge_service);
   ~ArcAuthService() override;
 
   static ArcAuthService* Get();
 
   // It is called from chrome/browser/prefs/browser_prefs.cc.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
+  // It is called from chrome/browser/prefs/browser_prefs.cc.
+  static void RegisterPrefs(PrefRegistrySimple* registry);
+
   static void DisableUIForTesting();
   static void SetShelfDelegateForTesting(ash::ShelfDelegate* shelf_delegate);
 
   // Checks if OptIn verification was disabled by switch in command line.
   static bool IsOptInVerificationDisabled();
 
   static void EnableCheckAndroidManagementForTesting();
 
   // Returns true if Arc is allowed to run for the given profile.
   static bool IsAllowedForProfile(const Profile* profile);
@@ skipping 106 matching lines @@
   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_