[gnome-shell] background: always add content to cache

[Ray Strode <halfline src gnome org>]

commit 3be489c69e4980bca8aa85808ed6628b69551071
Author: Ray Strode <rstrode redhat com>
Date:   Fri Mar 22 15:01:29 2013 -0400

    background: always add content to cache
    
    We currently only add the first instance of a background
    to the cache.  This means if the actor associated with that
    background is destroyed, the content will be evicted and
    it will need to get reloaded, even if it's already loaded
    on another actor.
    
    This commit ensures every content gets added to the cache.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=696157

 js/ui/background.js |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/background.js b/js/ui/background.js
index 0672dd1..aa238e7 100644
--- a/js/ui/background.js
+++ b/js/ui/background.js
@@ -84,10 +84,10 @@ const BackgroundCache = new Lang.Class({
             } else {
                 content.load_gradient(params.shadingType, params.color, params.secondColor);
             }
-
-            this._patterns.push(content);
         }
 
+        this._patterns.push(content);
+
         return content;
     },
 
@@ -165,6 +165,8 @@ const BackgroundCache = new Lang.Class({
 
             if (params.cancellable && params.cancellable.is_cancelled())
                 content = null;
+            else
+                this._images.push(content);
 
             if (params.onFinished)
                 params.onFinished(content);