Change configuration of user prefs to use mojo.

services/preferences/public/cpp/user_prefs_impl.h

 // Copyright 2017 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 SERVICES_PREFERENCES_PUBLIC_CPP_USER_PREFS_IMPL_H_
 #define SERVICES_PREFERENCES_PUBLIC_CPP_USER_PREFS_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 27 matching lines @@
 void CreateSegregatedUserPrefs(
     const base::FilePath& unprotected_pref_filename,
     const base::FilePath& protected_pref_filename,
     const std::vector<PrefHashFilter::TrackedPreferenceMetadata>&
         tracking_configuration,
     size_t reporting_ids_count,
     const std::string& seed,
     const std::string& legacy_device_id,
     const base::string16& registry_path,
     mojom::TrackedPreferenceValidationDelegatePtr validation_delegate,
-    const base::Closure& on_reset_on_load,
+    mojom::ResetOnLoadObserverPtr reset_on_load_observer,
     const scoped_refptr<base::SingleThreadTaskRunner>& connection_task_runner,
     const scoped_refptr<base::SequencedTaskRunner>& io_task_runner,
     mojom::PersistentPrefStoreConnectorRequest request);
 
 }  // namespace prefs
 
 #endif  // SERVICES_PREFERENCES_PUBLIC_CPP_USER_PREFS_IMPL_H_