[gnome-media] Adapt to GtkObject removal in GTK3

[Javier Jardón <jjardon src gnome org>]

commit 11bbee84bcc2ee153124de7dd11c53387373512f
Author: Javier Jardón <jjardon gnome org>
Date:   Wed Oct 6 03:11:30 2010 +0200

    Adapt to GtkObject removal in GTK3
    
    gtk_adjustment_new() now returns a GtkAdjustment*

 gst-mixer/src/volume.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gst-mixer/src/volume.c b/gst-mixer/src/volume.c
index 18be41a..c604538 100644
--- a/gst-mixer/src/volume.c
+++ b/gst-mixer/src/volume.c
@@ -91,7 +91,7 @@ get_scale (GnomeVolumeControlVolume *vol,
 	   gint volume)
 {
   GtkWidget *slider;
-  GtkObject *adj;
+  GtkAdjustment *adj;
   AtkObject *accessible;
   gchar *accessible_name;
 
@@ -101,7 +101,7 @@ get_scale (GnomeVolumeControlVolume *vol,
 		(vol->track->max_volume - vol->track->min_volume) / 10.0, 0.0);
   g_signal_connect (adj, "value_changed",
 		    G_CALLBACK (cb_volume_changed), vol);
-  slider = gtk_vscale_new (GTK_ADJUSTMENT (adj));
+  slider = gtk_vscale_new (adj);
   gtk_scale_set_draw_value (GTK_SCALE (slider), FALSE);
   gtk_range_set_inverted (GTK_RANGE (slider), TRUE);