[Sync] Propagate XMPP auth errors to SyncNotifierObservers

sync/notifier/non_blocking_invalidation_notifier.h

Index: sync/notifier/non_blocking_invalidation_notifier.h
diff --git a/sync/notifier/non_blocking_invalidation_notifier.h b/sync/notifier/non_blocking_invalidation_notifier.h
index dfcf63f6dc78e4fc95772597f03e8325449c21b7..ff59c436473bf3d94d292d786d19d97f95173675 100644
--- a/sync/notifier/non_blocking_invalidation_notifier.h
+++ b/sync/notifier/non_blocking_invalidation_notifier.h
@@ -57,10 +57,12 @@ class NonBlockingInvalidationNotifier
       syncable::ModelTypeSet changed_types) OVERRIDE;
 
   // SyncNotifierObserver implementation.
+  virtual void OnNotificationsEnabled() OVERRIDE;
+  virtual void OnNotificationsDisabled(
+      NotificationsDisabledReason reason) OVERRIDE;
   virtual void OnIncomingNotification(
       const syncable::ModelTypePayloadMap& type_payloads,
       IncomingNotificationSource source) OVERRIDE;
-  virtual void OnNotificationStateChange(bool notifications_enabled) OVERRIDE;
 
  private:
   class Core;