Forcing full data refresh when using custom object adapter.

Change-Id: I721ee032aece7109518583d836b29f621fc24b77
diff --git a/api/current.txt b/api/current.txt
index 7dc5ab7..1173f2b 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2908,6 +2908,7 @@
     method public final android.support.v17.leanback.widget.Presenter getPresenter(java.lang.Object);
     method public final android.support.v17.leanback.widget.PresenterSelector getPresenterSelector();
     method public final boolean hasStableIds();
+    method public boolean isImmediateNotifySupported();
     method protected final void notifyChanged();
     method protected final void notifyItemRangeChanged(int, int);
     method protected final void notifyItemRangeInserted(int, int);