Pref service: have Mash and Chrome connect to the right pref stores

services/preferences/pref_service_factory_unittest.cc

Index: services/preferences/pref_service_factory_unittest.cc
diff --git a/services/preferences/pref_service_factory_unittest.cc b/services/preferences/pref_service_factory_unittest.cc
index b61090eb5ca40dd14ab09a23171785d226a06797..a84deed16d221577ffd43aa9d584925b1dc1c7bc 100644
--- a/services/preferences/pref_service_factory_unittest.cc
+++ b/services/preferences/pref_service_factory_unittest.cc
@@ -125,7 +125,7 @@ class PrefServiceFactoryTest : public base::MessageLoop::DestructionObserver,
     auto pref_registry = make_scoped_refptr(new PrefRegistrySimple());
     pref_registry->RegisterIntegerPref(kKey, kInitialValue);
     pref_registry->RegisterIntegerPref(kOtherKey, kInitialValue);
-    ConnectToPrefService(connector(), pref_registry,
+    ConnectToPrefService(connector(), pref_registry, {},
                          base::Bind(&PrefServiceFactoryTest::OnCreate,
                                     run_loop.QuitClosure(), &pref_service));
     run_loop.Run();