[gtk] widget: Use get_css_name() in get_property()

[Timm Bäder <baedert src gnome org>]

commit a4ecfd8f337769ea2fdd80835c768b6c2a427bcf
Author: Timm Bäder <mail baedert org>
Date:   Sat Feb 15 11:10:19 2020 +0100

    widget: Use get_css_name() in get_property()
    
    Instead of reimplementing it there.

 gtk/gtkwidget.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 4090a45616..410baf482c 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -2046,7 +2046,7 @@ gtk_widget_get_property (GObject         *object,
       g_value_set_int (value, gtk_widget_get_scale_factor (widget));
       break;
     case PROP_CSS_NAME:
-      g_value_set_string (value, g_quark_to_string (gtk_css_node_get_name (priv->cssnode)));
+      g_value_set_string (value, gtk_widget_get_css_name (widget));
       break;
     case PROP_CSS_CLASSES:
       g_value_take_boxed (value, gtk_widget_get_css_classes (widget));
@@ -13127,7 +13127,7 @@ gtk_widget_class_query_action (GtkWidgetClass      *widget_class,
  *
  * Returns the CSS name that is used for @self.
  *
- * Returns: the CSS name
+ * Returns: (transfer none): the CSS name
  **/
 const char *
 gtk_widget_get_css_name (GtkWidget *self)