[vala/0.48] gtk4: Backport fixes from 0.54.2

[Rico Tzschichholz <ricotz src gnome org>]

commit f4a9562704b9c5048aa72da390c4efea920cab25
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Sep 29 17:38:33 2021 +0200

    gtk4: Backport fixes from 0.54.2

 vapi/gtk4.vapi | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)
---
diff --git a/vapi/gtk4.vapi b/vapi/gtk4.vapi
index 99574a9c2..a8c9a2e98 100644
--- a/vapi/gtk4.vapi
+++ b/vapi/gtk4.vapi
@@ -4792,7 +4792,7 @@ namespace Gdk {
                public unowned Gdk.Display get_display ();
                public unowned Gdk.ContentFormats get_formats ();
                public bool is_local ();
-               public async GLib.InputStream? read_async (string mime_types, int io_priority, 
GLib.Cancellable? cancellable, out unowned string out_mime_type) throws GLib.Error;
+               public async GLib.InputStream? read_async ([CCode (array_length = false, 
array_null_terminated = true)] string[] mime_types, int io_priority, GLib.Cancellable? cancellable, out 
unowned string out_mime_type) throws GLib.Error;
                public async string? read_text_async (GLib.Cancellable? cancellable) throws GLib.Error;
                public async Gdk.Texture? read_texture_async (GLib.Cancellable? cancellable) throws 
GLib.Error;
                public async unowned GLib.Value? read_value_async (GLib.Type type, int io_priority, 
GLib.Cancellable? cancellable) throws GLib.Error;
@@ -4821,7 +4821,7 @@ namespace Gdk {
                public int get_priority ();
                public void* get_task_data ();
                public unowned GLib.Value? get_value ();
-               public void return_error (GLib.Error error);
+               public void return_error (owned GLib.Error error);
                public void return_success ();
                public void set_task_data (void* data, GLib.DestroyNotify notify);
        }
@@ -4834,10 +4834,10 @@ namespace Gdk {
                public bool contain_mime_type (string mime_type);
                [CCode (has_construct_function = false)]
                public ContentFormats.for_gtype (GLib.Type type);
-               [CCode (array_length_pos = 0.1, array_length_type = "gsize")]
+               [CCode (array_length = true, array_length_pos = 0.1, array_length_type = "gsize", 
array_null_terminated = true)]
                public unowned GLib.Type[]? get_gtypes ();
-               [CCode (array_length = false, array_null_terminated = true)]
-               public unowned string[]? get_mime_types (out size_t n_mime_types);
+               [CCode (array_length = true, array_length_pos = 0.1, array_length_type = "gsize", 
array_null_terminated = true)]
+               public unowned string[]? get_mime_types ();
                public bool match (Gdk.ContentFormats second);
                public GLib.Type match_gtype (Gdk.ContentFormats second);
                public unowned string? match_mime_type (Gdk.ContentFormats second);
@@ -4904,7 +4904,7 @@ namespace Gdk {
                public int get_priority ();
                public void* get_task_data ();
                public unowned GLib.Value? get_value ();
-               public void return_error (GLib.Error error);
+               public void return_error (owned GLib.Error error);
                public void return_success ();
                public void set_task_data (void* data, GLib.DestroyNotify notify);
        }
@@ -7610,10 +7610,10 @@ namespace Gtk {
        public class ConstraintGuide : GLib.Object, Gtk.ConstraintTarget {
                [CCode (has_construct_function = false)]
                public ConstraintGuide ();
-               public void get_max_size (int? width, int? height);
-               public void get_min_size (int? width, int? height);
+               public void get_max_size (out int width, out int height);
+               public void get_min_size (out int width, out int height);
                public unowned string? get_name ();
-               public void get_nat_size (int? width, int? height);
+               public void get_nat_size (out int width, out int height);
                public Gtk.ConstraintStrength get_strength ();
                public void set_max_size (int width, int height);
                public void set_min_size (int width, int height);
@@ -8781,7 +8781,7 @@ namespace Gtk {
                public bool has_icon (string icon_name);
                public Gtk.IconPaintable lookup_by_gicon (GLib.Icon icon, int size, int scale, 
Gtk.TextDirection direction, Gtk.IconLookupFlags flags);
                public Gtk.IconPaintable lookup_icon (string icon_name, [CCode (array_length = false, 
array_null_terminated = true)] string[]? fallbacks, int size, int scale, Gtk.TextDirection direction, 
Gtk.IconLookupFlags flags);
-               public void set_resource_path (string path);
+               public void set_resource_path ([CCode (array_length = false, array_null_terminated = true)] 
string[]? path);
                public void set_search_path ([CCode (array_length = false, array_null_terminated = true)] 
string[]? path);
                public void set_theme_name (string? theme_name);
                [NoAccessorMethod]
@@ -12145,7 +12145,7 @@ namespace Gtk {
                public GLib.ListModel observe_controllers ();
                public unowned Gtk.Widget? pick (double x, double y, Gtk.PickFlags flags);
                [CCode (cname = "gtk_widget_class_query_action")]
-               public class bool query_action (uint index_, out GLib.Type owner, out string action_name, out 
GLib.VariantType parameter_type, out string property_name);
+               public class bool query_action (uint index_, out GLib.Type owner, out unowned string 
action_name, out unowned GLib.VariantType? parameter_type, out unowned string? property_name);
                public void queue_allocate ();
                public void queue_draw ();
                public void queue_resize ();