[gnome-settings-daemon] media-keys: Use g_error_matches() instead of manual comparison

[Bastien Nocera <hadess src gnome org>]

commit b54ff390772ade969e7f27ba204196842da20edf
Author: Mantas Mikulėnas <grawity gmail com>
Date:   Mon Feb 5 10:57:00 2018 +0200

    media-keys: Use g_error_matches() instead of manual comparison

 plugins/media-keys/gsd-media-keys-manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/media-keys/gsd-media-keys-manager.c b/plugins/media-keys/gsd-media-keys-manager.c
index 3a198415..2e1a64a9 100644
--- a/plugins/media-keys/gsd-media-keys-manager.c
+++ b/plugins/media-keys/gsd-media-keys-manager.c
@@ -444,7 +444,7 @@ grab_accelerators_complete (GObject      *object,
                                                          &actions, result, &error);
 
         if (error) {
-                retry = (error->code == G_DBUS_ERROR_UNKNOWN_METHOD);
+                retry = g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD);
                 if (!retry && !g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
                         g_warning ("Failed to grab accelerators: %s (%d)", error->message, error->code);
                 else if (retry)