[mutter] backend: Hook up to the parent constructed()

[Marge Bot <marge-bot src gnome org>]

commit 1a0bd44694a17d8035a1eceb2a7bc2440c22d19f
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Aug 18 18:31:49 2022 +0200

    backend: Hook up to the parent constructed()
    
    Doing an early out in a constructed() is a bit awkward, and unexpected,
    and makes it tricky to call the parents constructed() method (which we
    didn't), so clean that up.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2578>

 src/backends/meta-backend.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)
---
diff --git a/src/backends/meta-backend.c b/src/backends/meta-backend.c
index 32d8834207..509dd2aade 100644
--- a/src/backends/meta-backend.c
+++ b/src/backends/meta-backend.c
@@ -810,16 +810,18 @@ meta_backend_constructed (GObject *object)
     }
 #endif
 
-  if (backend_class->is_lid_closed != meta_backend_real_is_lid_closed)
-    return;
+  if (backend_class->is_lid_closed == meta_backend_real_is_lid_closed)
+    {
+      priv->upower_watch_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
+                                                "org.freedesktop.UPower",
+                                                G_BUS_NAME_WATCHER_FLAGS_NONE,
+                                                upower_appeared,
+                                                upower_vanished,
+                                                backend,
+                                                NULL);
+    }
 
-  priv->upower_watch_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
-                                            "org.freedesktop.UPower",
-                                            G_BUS_NAME_WATCHER_FLAGS_NONE,
-                                            upower_appeared,
-                                            upower_vanished,
-                                            backend,
-                                            NULL);
+  G_OBJECT_CLASS (meta_backend_parent_class)->constructed (object);
 }
 
 static void