[rhythmbox] display-page: add a default implementation of delete_thyself (bug #634065)

[Jonathan Matthew <jmatthew src gnome org>]

commit 1a64c4efcb3f20f6204baa735e642ddadd70c654
Author: Ben Walsh <b wumpster com>
Date:   Fri Nov 5 11:10:49 2010 +0000

    display-page: add a default implementation of delete_thyself (bug #634065)

 sources/rb-display-page.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)
---
diff --git a/sources/rb-display-page.c b/sources/rb-display-page.c
index 158cf54..f06c904 100644
--- a/sources/rb-display-page.c
+++ b/sources/rb-display-page.c
@@ -151,9 +151,8 @@ rb_display_page_delete_thyself (RBDisplayPage *page)
 	page->priv->deleted = TRUE;
 
 	klass = RB_DISPLAY_PAGE_GET_CLASS (page);
-	if (klass->delete_thyself) {
-		klass->delete_thyself (page);
-	}
+	klass->delete_thyself (page);
+
 	g_signal_emit (G_OBJECT (page), signals[DELETED], 0);
 }
 
@@ -547,6 +546,11 @@ impl_set_property (GObject *object, guint prop_id, const GValue *value, GParamSp
 }
 
 static void
+impl_delete_thyself (RBDisplayPage *page)
+{
+}
+
+static void
 impl_dispose (GObject *object)
 {
 	RBDisplayPage *page;
@@ -599,6 +603,8 @@ rb_display_page_class_init (RBDisplayPageClass *klass)
 	object_class->set_property = impl_set_property;
 	object_class->get_property = impl_get_property;
 
+	klass->delete_thyself = impl_delete_thyself;
+
 	/**
 	 * RBDisplayPage:shell:
 	 *