[yelp] print: use proper API to set print settings

[Christian Hergert <chergert src gnome org>]

commit ffcd7b954a52a9ed223a6e1ec2beb5b1890792cb
Author: Christian Hergert <chergert redhat com>
Date:   Mon Feb 6 11:54:55 2017 -0800

    print: use proper API to set print settings
    
    WebKitPrintOperation is not a GtkPrintOperation so the cast here was
    invalid. This fixes <ctrl>p to show the print dialog.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778256

 libyelp/yelp-view.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/libyelp/yelp-view.c b/libyelp/yelp-view.c
index 1aa647b..ee950bd 100644
--- a/libyelp/yelp-view.c
+++ b/libyelp/yelp-view.c
@@ -1758,8 +1758,7 @@ view_print_action (GAction *action, GVariant *parameter, YelpView *view)
     gtk_print_settings_set (settings,
                             GTK_PRINT_SETTINGS_OUTPUT_BASENAME,
                             priv->page_title);
-    gtk_print_operation_set_print_settings (GTK_PRINT_OPERATION (print_operation),
-                                            settings);
+    webkit_print_operation_set_print_settings (print_operation, settings);
 
     webkit_print_operation_run_dialog (print_operation, GTK_WINDOW (window));
     g_object_unref (print_operation);