[gnome-shell] Convert on_tree_changed to a gboolean returning false.

[Dan Winship <danw src gnome org>]

commit 7f88e02a269018afddacec41e70cccf4e6d443fa
Author: Jon Nettleton <jon nettleton gmail com>
Date:   Mon Sep 7 08:06:50 2009 -0700

    Convert on_tree_changed to a gboolean returning false.
    
    This fixes commit 0a29cf61955935ca1e7d3a48ccd38164ec9c80af and
    g_timer_add_full running in an endless loop.
    
    http://bugzilla.gnome.org/show_bug.cgi?id=592608

 src/shell-app-system.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/shell-app-system.c b/src/shell-app-system.c
index b090910..dfdc828 100644
--- a/src/shell-app-system.c
+++ b/src/shell-app-system.c
@@ -57,7 +57,7 @@ struct _ShellAppSystemPrivate {
 };
 
 static void shell_app_system_finalize (GObject *object);
-static void on_tree_changed (gpointer user_data);
+static gboolean on_tree_changed (gpointer user_data);
 static void on_tree_changed_cb (GMenuTree *tree, gpointer user_data);
 static void reread_menus (ShellAppSystem *self);
 static void on_favorite_apps_changed (GConfClient *client, guint id, GConfEntry *entry, gpointer user_data);
@@ -415,13 +415,14 @@ reread_menus (ShellAppSystem *self)
   cache_by_id (self, self->priv->cached_settings, TRUE);
 }
 
-static void
+static gboolean
 on_tree_changed (gpointer user_data)
 {
   ShellAppSystem *self = SHELL_APP_SYSTEM (user_data);
   g_signal_emit (self, signals[INSTALLED_CHANGED], 0);
   reread_menus (self);
   self->priv->app_change_timeout_id = 0;
+  return FALSE;
 }
 
 static void