[vala/0.40] gdk-x11-3.0,gtk+-3.0: Update to 3.24.1+356f1f59

[Rico Tzschichholz <ricotz src gnome org>]

commit d5f1bce46ee6a8e5025532d01f666aa3e43c3d21
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Nov 20 13:03:31 2018 +0100

    gdk-x11-3.0,gtk+-3.0: Update to 3.24.1+356f1f59

 vapi/gdk-x11-3.0.vapi |  4 ++--
 vapi/gtk+-3.0.vapi    | 13 +++++++------
 2 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/vapi/gdk-x11-3.0.vapi b/vapi/gdk-x11-3.0.vapi
index 6bcf1c868..90291ec03 100644
--- a/vapi/gdk-x11-3.0.vapi
+++ b/vapi/gdk-x11-3.0.vapi
@@ -77,7 +77,7 @@ namespace Gdk {
                        [Version (since = "2.2")]
                        public static unowned Gdk.X11.Display lookup_for_xdisplay (X.Display xdisplay);
                        [Version (since = "2.8")]
-                       public void set_cursor_theme (string theme, int size);
+                       public void set_cursor_theme (string? theme, int size);
                        [Version (since = "3.0")]
                        public void set_startup_notification_id (string startup_id);
                        [Version (since = "3.10")]
@@ -212,7 +212,7 @@ namespace Gdk {
                public static void register_standard_event_type (Gdk.X11.Display display, int event_base, int 
n_events);
                [CCode (cheader_filename = "gdk/gdkx.h")]
                [Version (since = "2.24")]
-               public static void set_sm_client_id (string sm_client_id);
+               public static void set_sm_client_id (string? sm_client_id);
                [CCode (cheader_filename = "gdk/gdkx.h")]
                public static void ungrab_server ();
                [CCode (cheader_filename = "gdk/gdkx.h")]
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index 961d36ff2..1e8c17eea 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -5445,7 +5445,7 @@ namespace Gtk {
                [Version (since = "3.22")]
                public GLib.Variant to_gvariant ();
                [Version (since = "2.12")]
-               public void to_key_file (GLib.KeyFile key_file, string group_name);
+               public void to_key_file (GLib.KeyFile key_file, string? group_name);
        }
        [CCode (cheader_filename = "gtk/gtk.h", type_id = "gtk_paned_get_type ()")]
        public class Paned : Gtk.Container, Atk.Implementor, Gtk.Buildable, Gtk.Orientable {
@@ -5519,7 +5519,7 @@ namespace Gtk {
                public PaperSize.from_ipp (string ipp_name, double width, double height);
                [CCode (has_construct_function = false)]
                [Version (since = "2.12")]
-               public PaperSize.from_key_file (GLib.KeyFile key_file, string group_name) throws GLib.Error;
+               public PaperSize.from_key_file (GLib.KeyFile key_file, string? group_name) throws GLib.Error;
                [CCode (has_construct_function = false)]
                [Version (since = "2.10")]
                public PaperSize.from_ppd (string ppd_name, string ppd_display_name, double width, double 
height);
@@ -5722,6 +5722,7 @@ namespace Gtk {
                public Gtk.Widget relative_to { get; set; }
                [Version (deprecated = true, deprecated_since = "3.22", since = "3.16")]
                public bool transitions_enabled { get; set; }
+               [Version (since = "3.12")]
                public virtual signal void closed ();
        }
        [CCode (cheader_filename = "gtk/gtk.h,gtk/gtk-a11y.h", type_id = "gtk_popover_accessible_get_type 
()")]
@@ -6055,7 +6056,7 @@ namespace Gtk {
                [Version (since = "3.22")]
                public GLib.Variant to_gvariant ();
                [Version (since = "2.12")]
-               public void to_key_file (GLib.KeyFile key_file, string group_name);
+               public void to_key_file (GLib.KeyFile key_file, string? group_name);
                [Version (since = "2.10")]
                public void unset (string key);
        }
@@ -8924,7 +8925,7 @@ namespace Gtk {
                public void select_range (Gtk.TreePath start_path, Gtk.TreePath end_path);
                public void selected_foreach (Gtk.TreeSelectionForeachFunc func);
                public void set_mode (Gtk.SelectionMode type);
-               public void set_select_function (owned Gtk.TreeSelectionFunc func);
+               public void set_select_function (owned Gtk.TreeSelectionFunc? func);
                public void unselect_all ();
                public void unselect_iter (Gtk.TreeIter iter);
                public void unselect_path (Gtk.TreePath path);
@@ -9083,7 +9084,7 @@ namespace Gtk {
                public void set_enable_search (bool enable_search);
                [Version (since = "2.10")]
                public void set_enable_tree_lines (bool enabled);
-               public void set_expander_column (Gtk.TreeViewColumn column);
+               public void set_expander_column (Gtk.TreeViewColumn? column);
                [Version (since = "2.6")]
                public void set_fixed_height_mode (bool enable);
                [Version (since = "2.10")]
@@ -10346,7 +10347,7 @@ namespace Gtk {
                [Version (since = "3.4")]
                public void set_action_target (string format_string, ...);
                [Version (since = "3.4")]
-               public abstract void set_action_target_value (GLib.Variant target_value);
+               public abstract void set_action_target_value (GLib.Variant? target_value);
                [Version (since = "3.4")]
                public void set_detailed_action_name (string detailed_action_name);
                public string action_name { get; set; }