[gnome-shell] screenShield: Ensure we destroy background container widgets



commit 1ee88a2878b6e7484bc68a50d9ed8a0e105395a1
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Apr 4 16:59:39 2013 -0400

    screenShield: Ensure we destroy background container widgets
    
    We may accidentally leak a widget when monitors change while
    locked otherwise. This is especially bad because we put a
    box-shadow on this widget.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697300

 js/ui/screenShield.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index f8bf3cc..d7e020b 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -562,6 +562,7 @@ const ScreenShield = new Lang.Class({
             this._bgManagers[i].destroy();
 
         this._bgManagers = [];
+        this._backgroundGroup.destroy_all_children();
 
         for (let i = 0; i < Main.layoutManager.monitors.length; i++)
             this._createBackground(i);


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