Pref service: Merge connectors and send a PrefRegistry in Connect().

chrome/browser/prefs/profile_pref_store_manager.cc

Index: chrome/browser/prefs/profile_pref_store_manager.cc
diff --git a/chrome/browser/prefs/profile_pref_store_manager.cc b/chrome/browser/prefs/profile_pref_store_manager.cc
index 7ac86a8fa3cd556793cc4f0a40e23f4b95350103..eab7cfd1778601a9d9e0e1f60a43e11084bc849a 100644
--- a/chrome/browser/prefs/profile_pref_store_manager.cc
+++ b/chrome/browser/prefs/profile_pref_store_manager.cc
@@ -24,7 +24,6 @@
 #include "components/user_prefs/tracked/pref_hash_store_impl.h"
 #include "components/user_prefs/tracked/segregated_pref_store.h"
 #include "components/user_prefs/tracked/tracked_preferences_migration.h"
-#include "services/preferences/public/cpp/persistent_pref_store_client.h"
 #include "services/preferences/public/interfaces/preferences.mojom.h"
 #include "services/service_manager/public/cpp/connector.h"
 
@@ -110,10 +109,7 @@ PersistentPrefStore* ProfilePrefStoreManager::CreateProfilePrefStore(
     service_manager::Connector* connector) {
   if (base::FeatureList::IsEnabled(features::kPrefService)) {
     ConfigurePrefService(on_reset_on_load, connector);
-    prefs::mojom::PersistentPrefStoreConnectorPtr pref_connector;
-    connector->BindInterface(prefs::mojom::kPrefStoreServiceName,
-                             &pref_connector);
-    return new prefs::PersistentPrefStoreClient(std::move(pref_connector));
+    return nullptr;
   }
   if (!kPlatformSupportsPreferenceTracking) {
     return new JsonPrefStore(profile_path_.Append(chrome::kPreferencesFilename),