[libadwaita] combo-row: Use g_autoptr() where possible

[Alexander Mikhaylenko <alexm src gnome org>]

commit 3086ceb8ec8fcb9a6213e27e9e4e6cc3bd4110ad
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Jul 8 12:05:32 2021 +0200

    combo-row: Use g_autoptr() where possible

 src/adw-combo-row.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/src/adw-combo-row.c b/src/adw-combo-row.c
index 31679719..f74168ad 100644
--- a/src/adw-combo-row.c
+++ b/src/adw-combo-row.c
@@ -114,12 +114,10 @@ selection_changed (AdwComboRow *self)
 
   if (priv->use_subtitle) {
     if (g_list_model_get_n_items (G_LIST_MODEL (priv->current_selection)) > 0) {
-      GtkListItem *item = g_list_model_get_item (G_LIST_MODEL (priv->current_selection), 0);
+      g_autoptr (GtkListItem) item = g_list_model_get_item (G_LIST_MODEL (priv->current_selection), 0);
       g_autofree char *repr = get_item_representation (self, item);
 
       adw_action_row_set_subtitle (ADW_ACTION_ROW (self), repr);
-
-      g_object_unref (item);
     } else {
       adw_action_row_set_subtitle (ADW_ACTION_ROW (self), NULL);
     }
@@ -250,7 +248,7 @@ unbind_item (GtkSignalListItemFactory *factory,
 static void
 set_default_factory (AdwComboRow *self)
 {
-  GtkListItemFactory *factory;
+  g_autoptr (GtkListItemFactory) factory;
 
   factory = gtk_signal_list_item_factory_new ();
 
@@ -259,8 +257,6 @@ set_default_factory (AdwComboRow *self)
   g_signal_connect (factory, "unbind", G_CALLBACK (unbind_item), self);
 
   adw_combo_row_set_factory (self, factory);
-
-  g_object_unref (factory);
 }
 
 static void