[gnome-shell] background: When updating actor content, evict old content from cache

[Ray Strode <halfline src gnome org>]

commit b9da6d9ef628bdfea3dc87f5e3f46ae59e880c45
Author: Ray Strode <rstrode redhat com>
Date:   Fri Mar 22 15:03:04 2013 -0400

    background: When updating actor content, evict old content from cache
    
    Normally backgrounds get evicted from the cache when their actor is
    destroyed.  If the actor changes content without destroying itself,
    though, we should evict the old content from the cache, too.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=696157

 js/ui/background.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/background.js b/js/ui/background.js
index aa238e7..e95cbc0 100644
--- a/js/ui/background.js
+++ b/js/ui/background.js
@@ -372,6 +372,7 @@ const Background = new Lang.Class({
         content.brightness = this._brightness;
         content.vignette_sharpness = this._vignetteSharpness;
 
+        this._cache.removeImageContent(content);
         this._images[index].content = content;
         this._watchCacheFile(filename);
     },