Do not restart Chrome to apply user flags with stub session manager

chromeos/dbus/fake_session_manager_client.h

 // Copyright 2013 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 CHROMEOS_DBUS_FAKE_SESSION_MANAGER_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_SESSION_MANAGER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 43 matching lines @@
       const RetrievePolicyCallback& callback) override;
   void StoreDevicePolicy(const std::string& policy_blob,
                          const StorePolicyCallback& callback) override;
   void StorePolicyForUser(const cryptohome::Identification& cryptohome_id,
                           const std::string& policy_blob,
                           const StorePolicyCallback& callback) override;
   void StoreDeviceLocalAccountPolicy(
       const std::string& account_id,
       const std::string& policy_blob,
       const StorePolicyCallback& callback) override;
+  bool SupportsRestartToApplyUserFlags() const override;
   void SetFlagsForUser(const cryptohome::Identification& cryptohome_id,
                        const std::vector<std::string>& flags) override;
   void GetServerBackedStateKeys(const StateKeysCallback& callback) override;
 
   void CheckArcAvailability(const ArcCallback& callback) override;
   void StartArcInstance(const cryptohome::Identification& cryptohome_id,
                         bool disable_boot_completed_broadcast,
                         const StartArcInstanceCallback& callback) override;
   void StopArcInstance(const ArcCallback& callback) override;
   void PrioritizeArcInstance(const ArcCallback& callback) override;
@@ skipping 61 matching lines @@
   int notify_lock_screen_dismissed_call_count_;
 
   bool arc_available_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeSessionManagerClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_SESSION_MANAGER_CLIENT_H_