[gnome-panel] remove PanelBackgroundChangedNotify

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 00433a2c2641dfee50a6123aefd389763e1e237e
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Oct 6 21:20:51 2016 +0300

    remove PanelBackgroundChangedNotify

 gnome-panel/panel-background.c |    8 +-------
 gnome-panel/panel-background.h |   11 +----------
 gnome-panel/panel-toplevel.c   |   10 +---------
 3 files changed, 3 insertions(+), 26 deletions(-)
---
diff --git a/gnome-panel/panel-background.c b/gnome-panel/panel-background.c
index a82934f..d7c05af 100644
--- a/gnome-panel/panel-background.c
+++ b/gnome-panel/panel-background.c
@@ -102,8 +102,6 @@ panel_background_prepare (PanelBackground *background)
        if (GTK_IS_WIDGET (widget))
          gtk_widget_queue_draw (widget);
 
-       background->notify_changed (background, background->user_data);
-
        return TRUE;
 }
 
@@ -772,15 +770,11 @@ panel_background_change_region (PanelBackground *background,
 }
 
 void
-panel_background_init (PanelBackground              *background,
-                      PanelBackgroundChangedNotify  notify_changed,
-                      gpointer                      user_data)
+panel_background_init (PanelBackground *background)
 {
        background->settings = NULL;
 
        background->type = PANEL_BACK_NONE;
-       background->notify_changed = notify_changed;
-       background->user_data = user_data;
 
        background->color.red   = 0.;
        background->color.blue  = 0.;
diff --git a/gnome-panel/panel-background.h b/gnome-panel/panel-background.h
index 22e6f40..371ce62 100644
--- a/gnome-panel/panel-background.h
+++ b/gnome-panel/panel-background.h
@@ -31,18 +31,11 @@
 
 typedef struct _PanelBackground PanelBackground;
 
-typedef void (*PanelBackgroundChangedNotify) 
-                               (PanelBackground *background,
-                                gpointer         user_data);
-
 struct _PanelBackground {
        GSettings              *settings;
 
        PanelBackgroundType     type;
 
-       PanelBackgroundChangedNotify notify_changed;
-       gpointer                user_data;
-
        GdkRGBA                 color;
        char                   *image;
        GdkPixbuf              *loaded_image; 
@@ -67,9 +60,7 @@ struct _PanelBackground {
        guint                   composited : 1;
 };
 
-void  panel_background_init              (PanelBackground     *background,
-                                         PanelBackgroundChangedNotify notify_changed,
-                                         gpointer             user_data);
+void  panel_background_init              (PanelBackground     *background);
 void  panel_background_settings_init     (PanelBackground     *background,
                                          GSettings           *settings);
 void  panel_background_free              (PanelBackground     *background);
diff --git a/gnome-panel/panel-toplevel.c b/gnome-panel/panel-toplevel.c
index aed80a0..c44066f 100644
--- a/gnome-panel/panel-toplevel.c
+++ b/gnome-panel/panel-toplevel.c
@@ -4067,12 +4067,6 @@ panel_toplevel_setup_widgets (PanelToplevel *toplevel)
 }
 
 static void
-background_changed (PanelBackground *background,
-                    PanelToplevel   *toplevel)
-{
-}
-
-static void
 panel_toplevel_init (PanelToplevel *toplevel)
 {
        GtkWidget *widget;
@@ -4183,9 +4177,7 @@ panel_toplevel_init (PanelToplevel *toplevel)
        context = gtk_widget_get_style_context (GTK_WIDGET (toplevel));
        gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
 
-       panel_background_init (&toplevel->background,
-                              (PanelBackgroundChangedNotify) background_changed,
-                              toplevel);
+       panel_background_init (&toplevel->background);
 }
 
 PanelWidget *