// Copyright 2015 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_PREFS_PREF_SERVICE_SYNCABLE_UTIL_H_
#define CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_UTIL_H_

class PrefStore;
class Profile;

namespace syncable_prefs {
class PrefServiceSyncable;
}

// syncable_prefs::PrefServiceSyncable is a PrefService with added integration
// for sync, and knowledge of how to create an incognito PrefService. For code
// that does not need to know about the sync integration, you should use only
// the plain PrefService type.
//
// For this reason, Profile does not expose an accessor for the
// syncable_prefs::PrefServiceSyncable type. Instead, you can use the utilities
// below to retrieve the syncable_prefs::PrefServiceSyncable (or its incognito
// version) from a Profile.
syncable_prefs::PrefServiceSyncable* PrefServiceSyncableFromProfile(
    Profile* profile);
syncable_prefs::PrefServiceSyncable* PrefServiceSyncableIncognitoFromProfile(
    Profile* profile);

// Creates an incognito copy of |pref_service| that shares most prefs but uses
// a fresh non-persistent overlay for the user pref store and an individual
// extension pref store (to cache the effective extension prefs for incognito
// windows).
syncable_prefs::PrefServiceSyncable* CreateIncognitoPrefServiceSyncable(
    syncable_prefs::PrefServiceSyncable* pref_service,
    PrefStore* incognito_extension_pref_store);

#endif  // CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_UTIL_H_