[vala/staging] gtk4: Update to 3.99.1+35c3a60c

[Rico Tzschichholz <ricotz src gnome org>]

commit fec5844439e3186a2fdb0c3754ab7988e57c3400
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Sep 17 15:16:59 2020 +0200

    gtk4: Update to 3.99.1+35c3a60c

 vapi/gtk4.vapi                 | 14 +++++++-------
 vapi/metadata/Gtk-4.0.metadata |  2 ++
 2 files changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/vapi/gtk4.vapi b/vapi/gtk4.vapi
index 605224016..c55c2c1c9 100644
--- a/vapi/gtk4.vapi
+++ b/vapi/gtk4.vapi
@@ -5110,6 +5110,7 @@ namespace Gdk {
                public void begin_updating ();
                public void end_updating ();
                public unowned Gdk.FrameTimings? get_current_timings ();
+               public double get_fps ();
                public int64 get_frame_counter ();
                public int64 get_frame_time ();
                public int64 get_history_start ();
@@ -7236,7 +7237,7 @@ namespace Gtk {
        [CCode (cheader_filename = "gtk/gtk.h", type_id = "gtk_closure_expression_get_type ()")]
        public class ClosureExpression : Gtk.Expression {
                [CCode (has_construct_function = false, type = "GtkExpression*")]
-               public ClosureExpression (GLib.Type value_type, GLib.Closure closure, [CCode 
(array_length_cname = "n_params", array_length_pos = 2.5, array_length_type = "guint")] owned 
Gtk.Expression[] @params);
+               public ClosureExpression (GLib.Type value_type, GLib.Closure closure, [CCode 
(array_length_cname = "n_params", array_length_pos = 2.5, array_length_type = "guint")] owned 
Gtk.Expression[]? @params);
        }
        [CCode (cheader_filename = "gtk/gtk.h", type_id = "gtk_color_button_get_type ()")]
        public class ColorButton : Gtk.Widget, Gtk.Accessible, Gtk.Buildable, Gtk.ColorChooser, 
Gtk.ConstraintTarget {
@@ -10670,6 +10671,7 @@ namespace Gtk {
        public class Stack : Gtk.Widget, Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget {
                [CCode (has_construct_function = false, type = "GtkWidget*")]
                public Stack ();
+               public new unowned Gtk.StackPage add_child (Gtk.Widget child);
                public unowned Gtk.StackPage add_named (Gtk.Widget child, string? name);
                public unowned Gtk.StackPage add_titled (Gtk.Widget child, string? name, string title);
                public unowned Gtk.Widget? get_child_by_name (string name);
@@ -10847,8 +10849,6 @@ namespace Gtk {
                public void render_line (Cairo.Context cr, double x0, double y0, double x1, double y1);
                [CCode (cheader_filename = "gtk/gtk.h", cname = "gtk_render_option")]
                public void render_option (Cairo.Context cr, double x, double y, double width, double height);
-               [CCode (cheader_filename = "gtk/gtk.h", cname = "gtk_render_slider")]
-               public void render_slider (Cairo.Context cr, double x, double y, double width, double height, 
Gtk.Orientation orientation);
                public void restore ();
                public void save ();
                public void set_display (Gdk.Display display);
@@ -13095,9 +13095,9 @@ namespace Gtk {
                [CCode (cheader_filename = "gtk/gtk.h")]
                public static GLib.Quark quark ();
        }
-       [CCode (cheader_filename = "gtk/gtk.h", cprefix = "GTK_DEBUG_", type_id = "gtk_debug_flag_get_type 
()")]
+       [CCode (cheader_filename = "gtk/gtk.h", cprefix = "GTK_DEBUG_", type_id = "gtk_debug_flags_get_type 
()")]
        [Flags]
-       public enum DebugFlag {
+       public enum DebugFlags {
                TEXT,
                TREE,
                KEYBINDINGS,
@@ -14103,7 +14103,7 @@ namespace Gtk {
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static uint get_binary_age ();
        [CCode (cheader_filename = "gtk/gtk.h")]
-       public static uint get_debug_flags ();
+       public static Gtk.DebugFlags get_debug_flags ();
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static unowned Pango.Language get_default_language ();
        [CCode (cheader_filename = "gtk/gtk.h")]
@@ -14135,7 +14135,7 @@ namespace Gtk {
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static void rgb_to_hsv (float r, float g, float b, out float h, out float s, out float v);
        [CCode (cheader_filename = "gtk/gtk.h")]
-       public static void set_debug_flags (uint flags);
+       public static void set_debug_flags (Gtk.DebugFlags flags);
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static void show_about_dialog (Gtk.Window? parent, ...);
        [CCode (cheader_filename = "gtk/gtk.h")]
diff --git a/vapi/metadata/Gtk-4.0.metadata b/vapi/metadata/Gtk-4.0.metadata
index efc1faa7d..558c232ee 100644
--- a/vapi/metadata/Gtk-4.0.metadata
+++ b/vapi/metadata/Gtk-4.0.metadata
@@ -225,6 +225,8 @@ MediaStream
   .play#method name="play_now"
 Notebook
   .insert_page_menu skip
+Stack
+  .add_child new
 TreeView
   .row_expanded#method name="is_row_expanded"
 Widget