Pref service: support for incognito prefs

components/sync_preferences/pref_service_syncable_factory.cc

 // 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.
 
 #include "components/sync_preferences/pref_service_syncable_factory.h"
 
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/default_pref_store.h"
@@ skipping 79 matching lines @@
   auto supervised =
       CreateRegisteredPrefStore(registry.get(), supervised_user_prefs_,
                                 PrefValueStore::SUPERVISED_USER_STORE);
   auto extension = CreateRegisteredPrefStore(registry.get(), extension_prefs_,
                                              PrefValueStore::EXTENSION_STORE);
   auto command_line = CreateRegisteredPrefStore(
       registry.get(), command_line_prefs_, PrefValueStore::COMMAND_LINE_STORE);
   auto recommended = CreateRegisteredPrefStore(
       registry.get(), recommended_prefs_, PrefValueStore::RECOMMENDED_STORE);
 
+  // TODO(sammc): Register Mojo user pref store once implemented.
   std::unique_ptr<PrefServiceSyncable> pref_service(new PrefServiceSyncable(
       pref_notifier,
       new PrefValueStore(managed.get(), supervised.get(), extension.get(),
                          command_line.get(), user_prefs_.get(),
                          recommended.get(), pref_registry->defaults().get(),
                          pref_notifier),
       user_prefs_.get(), pref_registry, pref_model_associator_client_,
       read_error_callback_, async_));
   return pref_service;
 }
 
 }  // namespace sync_preferences