Fix Arc integration test.

chrome/browser/chromeos/arc/arc_session_manager.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_SESSION_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ARC_ARC_SESSION_MANAGER_H_
 
 #include <memory>
 #include <ostream>
 #include <string>
@@ skipping 102 matching lines @@
 
   // Exposed here for unit_tests validation.
   static bool IsOobeOptInActive();
 
   // It is called from chrome/browser/prefs/browser_prefs.cc.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   static void DisableUIForTesting();
   static void SetShelfDelegateForTesting(ash::ShelfDelegate* shelf_delegate);
   static void EnableCheckAndroidManagementForTesting();
+  static void SetSessionManagerForSyncTest();
 
   // Returns true if ARC is allowed to run for the current session.
   // TODO(hidehiko): The name is very close to IsArcAllowedForProfile(), but
   // has different meaning. Clean this up.
   bool IsAllowed() const;
 
   void OnPrimaryUserProfilePrepared(Profile* profile);
   void Shutdown();
 
   Profile* profile() { return profile_; }
@@ skipping 175 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(ArcSessionManager);
 };
 
 // Outputs the stringified |state| to |os|. This is only for logging purposes.
 std::ostream& operator<<(std::ostream& os,
                          const ArcSessionManager::State& state);
 
 }  // namespace arc
 
 #endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_SESSION_MANAGER_H_