Creating a preference for storing a sync password hash.

chrome/browser/password_manager/simple_password_store_mac.cc

 // 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.
 
 #include "chrome/browser/password_manager/simple_password_store_mac.h"
 
 #include <utility>
 
 SimplePasswordStoreMac::SimplePasswordStoreMac(
     scoped_refptr<base::SingleThreadTaskRunner> main_thread_runner,
@@ skipping 13 matching lines @@
     scoped_refptr<base::SingleThreadTaskRunner> background_task_runner,
     std::unique_ptr<password_manager::LoginDatabase> login_db) {
   db_thread_runner_ = background_task_runner;
   DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
   set_login_db(std::move(login_db));
   if (this->login_db())
     this->login_db()->set_clear_password_values(false);
 }
 
 bool SimplePasswordStoreMac::Init(
-    const syncer::SyncableService::StartSyncFlare& flare) {
+    const syncer::SyncableService::StartSyncFlare& flare,
+    PrefService* prefs) {
   NOTREACHED();
   return false;
 }