[gtk+] checkmenuitem: Don't always snapshot the indicator

[Matthias Clasen <matthiasc src gnome org>]

commit 28dae5f1c2cb01c759a68b47e90b0cb1e1b94540
Author: Timm Bäder <mail baedert org>
Date:   Wed Jul 12 08:30:49 2017 +0200

    checkmenuitem: Don't always snapshot the indicator
    
    Chaining up will snapshot all child widgets, which doesn't work with
    GtkModelMenuItem.

 gtk/gtkcheckmenuitem.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkcheckmenuitem.c b/gtk/gtkcheckmenuitem.c
index 0987fc1..b8d57cd 100644
--- a/gtk/gtkcheckmenuitem.c
+++ b/gtk/gtkcheckmenuitem.c
@@ -495,9 +495,13 @@ gtk_check_menu_item_snapshot (GtkWidget   *widget,
                               GtkSnapshot *snapshot)
 {
   GtkCheckMenuItem *check_menu_item = GTK_CHECK_MENU_ITEM (widget);
+  GtkWidget *child;
+
+  child = gtk_bin_get_child (GTK_BIN (widget));
+
 
-  if (GTK_WIDGET_CLASS (gtk_check_menu_item_parent_class)->snapshot)
-    GTK_WIDGET_CLASS (gtk_check_menu_item_parent_class)->snapshot (widget, snapshot);
+  if (child)
+    gtk_widget_snapshot_child (widget, child, snapshot);
 
   if (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->snapshot_indicator)
     GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->snapshot_indicator (check_menu_item, snapshot);