[gtk] One forgotten leave signal handler

[Matthias Clasen <matthiasc src gnome org>]

commit 0d91481587d27f04200c036bf9fe1b39fd57d051
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Mar 18 15:35:07 2019 -0400

    One forgotten leave signal handler

 gtk/gtkscrolledwindow.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index ea1b402c4b..2ba312e741 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -423,6 +423,8 @@ add_tab_bindings (GtkBindingSet    *binding_set,
 
 static void
 motion_controller_leave (GtkEventController *controller,
+                         GdkCrossingMode     mode,
+                         GdkNotifyType       detail,
                          GtkScrolledWindow  *scrolled_window)
 {
   GtkScrolledWindowPrivate *priv = gtk_scrolled_window_get_instance_private (scrolled_window);