[gnome-control-center] sound: Make level bar descend from GtkWidget

[Bastien Nocera <hadess src gnome org>]

commit 799b49908250a27a0adb5c0efd1be9b041c223eb
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Nov 18 16:08:09 2010 +0000

    sound: Make level bar descend from GtkWidget
    
    As there's no need for it to descend from GtkHBox (it doesn't
    actually contain anything).

 panels/sound/gvc-level-bar.c |    2 +-
 panels/sound/gvc-level-bar.h |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/panels/sound/gvc-level-bar.c b/panels/sound/gvc-level-bar.c
index 00a85c9..e14335d 100644
--- a/panels/sound/gvc-level-bar.c
+++ b/panels/sound/gvc-level-bar.c
@@ -86,7 +86,7 @@ static void     gvc_level_bar_class_init (GvcLevelBarClass *klass);
 static void     gvc_level_bar_init       (GvcLevelBar      *level_bar);
 static void     gvc_level_bar_finalize   (GObject            *object);
 
-G_DEFINE_TYPE (GvcLevelBar, gvc_level_bar, GTK_TYPE_HBOX)
+G_DEFINE_TYPE (GvcLevelBar, gvc_level_bar, GTK_TYPE_WIDGET)
 
 #define check_rectangle(rectangle1, rectangle2)                          \
         {                                                                \
diff --git a/panels/sound/gvc-level-bar.h b/panels/sound/gvc-level-bar.h
index 917b415..adff964 100644
--- a/panels/sound/gvc-level-bar.h
+++ b/panels/sound/gvc-level-bar.h
@@ -37,13 +37,13 @@ typedef struct GvcLevelBarPrivate GvcLevelBarPrivate;
 
 typedef struct
 {
-        GtkHBox             parent;
+        GtkWidget           parent;
         GvcLevelBarPrivate *priv;
 } GvcLevelBar;
 
 typedef struct
 {
-        GtkHBoxClass        parent_class;
+        GtkWidgetClass      parent_class;
 } GvcLevelBarClass;
 
 typedef enum