[Sync] Convert syncable/ directory to ModelEnumSet

chrome/browser/sync/notifier/sync_notifier.h

Index: chrome/browser/sync/notifier/sync_notifier.h
diff --git a/chrome/browser/sync/notifier/sync_notifier.h b/chrome/browser/sync/notifier/sync_notifier.h
index f20000a7ceab090bceddea646f428a3e5bba5d5f..a484dea917a5767ff2a6c9a52907fa7f434a6d68 100644
--- a/chrome/browser/sync/notifier/sync_notifier.h
+++ b/chrome/browser/sync/notifier/sync_notifier.h
@@ -40,14 +40,14 @@ class SyncNotifier {
       const std::string& email, const std::string& token) = 0;
 
   virtual void UpdateEnabledTypes(
-      const syncable::ModelTypeSet& enabled_types) = 0;
+      syncable::ModelEnumSet enabled_types) = 0;
 
   // This is here only to support the old p2p notification implementation,
   // which is still used by sync integration tests.
   // TODO(akalin): Remove this once we move the integration tests off p2p
   // notifications.
   virtual void SendNotification(
-      const syncable::ModelTypeSet& changed_types) = 0;
+      syncable::ModelEnumSet changed_types) = 0;
 };
 }  // namespace sync_notifier