Change configuration of user prefs to use mojo.

components/sync_preferences/pref_service_syncable_factory.h

Index: components/sync_preferences/pref_service_syncable_factory.h
diff --git a/components/sync_preferences/pref_service_syncable_factory.h b/components/sync_preferences/pref_service_syncable_factory.h
index 9a8994b6c6afe5a833e832823c56cea2c7e2a705..724c6cba4bed04c8d1d965769e278e8bb987f618 100644
--- a/components/sync_preferences/pref_service_syncable_factory.h
+++ b/components/sync_preferences/pref_service_syncable_factory.h
@@ -9,6 +9,7 @@
 
 #include "base/macros.h"
 #include "components/prefs/pref_service_factory.h"
+#include "services/preferences/public/interfaces/preferences.mojom.h"
 
 namespace policy {
 class BrowserPolicyConnector;
@@ -43,7 +44,8 @@ class PrefServiceSyncableFactory : public PrefServiceFactory {
       PrefModelAssociatorClient* pref_model_associator_client);
 
   std::unique_ptr<PrefServiceSyncable> CreateSyncable(
-      user_prefs::PrefRegistrySyncable* registry);
+      user_prefs::PrefRegistrySyncable* registry,
+      prefs::mojom::PersistentPrefStoreConnectorPtr connector = {});
 
  private:
   PrefModelAssociatorClient* pref_model_associator_client_;