[gnome-shell-extensions] dock: fix showing in overview with gnome-shell master

[Giovanni Campagna <gcampagna src gnome org>]

commit 939994d07db0d08c77d9e4d28dadc978b10a3b99
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Thu Jun 30 21:52:18 2011 +0200

    dock: fix showing in overview with gnome-shell master
    
    Chrome module no longer updates the visibility of objects when
    the overview is shown or hidden, so we need to do it ourselves.

 extensions/dock/extension.js |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/extensions/dock/extension.js b/extensions/dock/extension.js
index 7018495..c638b2d 100644
--- a/extensions/dock/extension.js
+++ b/extensions/dock/extension.js
@@ -82,7 +82,13 @@ Dock.prototype = {
         AppFavorites.getAppFavorites().connect('changed', Lang.bind(this, this._queueRedisplay));
         this._tracker.connect('app-state-changed', Lang.bind(this, this._queueRedisplay));
 
-        Main.chrome.addActor(this.actor, { visibleInOverview: false });
+        Main.overview.connect('showing', Lang.bind(this, function() {
+            this.actor.hide();
+        }));
+        Main.overview.connect('hidden', Lang.bind(this, function() {
+            this.actor.show();
+        }));
+        Main.chrome.addActor(this.actor);
         this.actor.lower_bottom();
     },