[gnome-photos] spinner-box: Use G_DECLARE_FINAL_TYPE

[Debarshi Ray <debarshir src gnome org>]

commit edc79f810d327142ee4cafcfca6937b8578bf26f
Author: Umang Jain <mailumangjain gmail com>
Date:   Tue Sep 5 02:00:46 2017 +0530

    spinner-box: Use G_DECLARE_FINAL_TYPE
    
    https://bugzilla.gnome.org/show_bug.cgi?id=763712

 src/photos-spinner-box.c |    5 -----
 src/photos-spinner-box.h |   14 +-------------
 2 files changed, 1 insertions(+), 18 deletions(-)
---
diff --git a/src/photos-spinner-box.c b/src/photos-spinner-box.c
index c87906d..cfc8c13 100644
--- a/src/photos-spinner-box.c
+++ b/src/photos-spinner-box.c
@@ -37,11 +37,6 @@ struct _PhotosSpinnerBox
   GtkWidget *spinner;
 };
 
-struct _PhotosSpinnerBoxClass
-{
-  GtkRevealerClass parent_class;
-};
-
 
 G_DEFINE_TYPE (PhotosSpinnerBox, photos_spinner_box, GTK_TYPE_REVEALER);
 
diff --git a/src/photos-spinner-box.h b/src/photos-spinner-box.h
index 85b54ab..24d2b67 100644
--- a/src/photos-spinner-box.h
+++ b/src/photos-spinner-box.h
@@ -30,19 +30,7 @@
 G_BEGIN_DECLS
 
 #define PHOTOS_TYPE_SPINNER_BOX (photos_spinner_box_get_type ())
-
-#define PHOTOS_SPINNER_BOX(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
-   PHOTOS_TYPE_SPINNER_BOX, PhotosSpinnerBox))
-
-#define PHOTOS_IS_SPINNER_BOX(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
-   PHOTOS_TYPE_SPINNER_BOX))
-
-typedef struct _PhotosSpinnerBox      PhotosSpinnerBox;
-typedef struct _PhotosSpinnerBoxClass PhotosSpinnerBoxClass;
-
-GType                  photos_spinner_box_get_type               (void) G_GNUC_CONST;
+G_DECLARE_FINAL_TYPE (PhotosSpinnerBox, photos_spinner_box, PHOTOS, SPINNER_BOX, GtkRevealer);
 
 GtkWidget             *photos_spinner_box_new                    (void);