[vala/0.44] gtk4: Update to 3.96.0+bcea9652

[Rico Tzschichholz <ricotz src gnome org>]

commit f57ab234a412120b54fb4f8396e6ea8573e8815e
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Sep 30 08:50:36 2019 +0200

    gtk4: Update to 3.96.0+bcea9652

 vapi/gtk4.vapi | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gtk4.vapi b/vapi/gtk4.vapi
index b7604d1cb..5532c94e2 100644
--- a/vapi/gtk4.vapi
+++ b/vapi/gtk4.vapi
@@ -8998,11 +8998,11 @@ namespace Gtk {
                [NoWrapper]
                public virtual void close ();
                [CCode (has_construct_function = false, type = "GtkMediaStream*")]
-               public MediaFile.for_file (GLib.File? file);
+               public MediaFile.for_file (GLib.File file);
                [CCode (has_construct_function = false, type = "GtkMediaStream*")]
                public MediaFile.for_filename (string filename);
                [CCode (has_construct_function = false, type = "GtkMediaStream*")]
-               public MediaFile.for_input_stream (GLib.InputStream? stream);
+               public MediaFile.for_input_stream (GLib.InputStream stream);
                [CCode (has_construct_function = false, type = "GtkMediaStream*")]
                public MediaFile.for_resource (string resource_path);
                public unowned GLib.File? get_file ();
@@ -9247,7 +9247,10 @@ namespace Gtk {
                public void set_arrow_tooltip_markup (string markup);
                public void set_arrow_tooltip_text (string text);
                public void set_menu (Gtk.Widget menu);
+               public void set_popover (Gtk.Widget popover);
                public Gtk.Menu menu { get; set; }
+               [NoAccessorMethod]
+               public Gtk.Popover popover { owned get; set; }
                public signal void show_menu ();
        }
        [CCode (cheader_filename = "gtk/gtk.h", type_id = "gtk_message_dialog_get_type ()")]