[nautilus] dbus-manager: migrate to G_DECLARE_* format

[Ernestas Kulik <ernestask src gnome org>]

commit a945d22b5cfecb3416100a7c032e86f0b8657fef
Author: Yi-Soo An <yisooan gmail com>
Date:   Wed Jun 27 21:47:31 2018 +0900

    dbus-manager: migrate to G_DECLARE_* format
    
    G_DECLARE_* macro is used for emitting the usual declarations.
    It is better than previous way for developers.

 src/nautilus-dbus-manager.c | 10 +---------
 src/nautilus-dbus-manager.h |  5 ++---
 2 files changed, 3 insertions(+), 12 deletions(-)
---
diff --git a/src/nautilus-dbus-manager.c b/src/nautilus-dbus-manager.c
index 3611a2358..6be4d855b 100644
--- a/src/nautilus-dbus-manager.c
+++ b/src/nautilus-dbus-manager.c
@@ -30,8 +30,6 @@
 #define DEBUG_FLAG NAUTILUS_DEBUG_DBUS
 #include "nautilus-debug.h"
 
-#include <gio/gio.h>
-
 struct _NautilusDBusManager
 {
     GObject parent;
@@ -39,11 +37,6 @@ struct _NautilusDBusManager
     NautilusDBusFileOperations *file_operations;
 };
 
-struct _NautilusDBusManagerClass
-{
-    GObjectClass parent_class;
-};
-
 G_DEFINE_TYPE (NautilusDBusManager, nautilus_dbus_manager, G_TYPE_OBJECT);
 
 static void
@@ -161,8 +154,7 @@ nautilus_dbus_manager_class_init (NautilusDBusManagerClass *klass)
 NautilusDBusManager *
 nautilus_dbus_manager_new (void)
 {
-    return g_object_new (nautilus_dbus_manager_get_type (),
-                         NULL);
+    return g_object_new (NAUTILUS_TYPE_DBUS_MANAGER, NULL);
 }
 
 gboolean
diff --git a/src/nautilus-dbus-manager.h b/src/nautilus-dbus-manager.h
index ff59f34f7..7ff4f8e94 100644
--- a/src/nautilus-dbus-manager.h
+++ b/src/nautilus-dbus-manager.h
@@ -25,10 +25,9 @@
 #include <glib-object.h>
 #include <gio/gio.h>
 
-typedef struct _NautilusDBusManager NautilusDBusManager;
-typedef struct _NautilusDBusManagerClass NautilusDBusManagerClass;
+#define NAUTILUS_TYPE_DBUS_MANAGER (nautilus_dbus_manager_get_type())
+G_DECLARE_FINAL_TYPE (NautilusDBusManager, nautilus_dbus_manager, NAUTILUS, DBUS_MANAGER, GObject)
 
-GType nautilus_dbus_manager_get_type (void);
 NautilusDBusManager * nautilus_dbus_manager_new (void);
 
 gboolean nautilus_dbus_manager_register   (NautilusDBusManager *self,