Switch Arc<Box<Image>> to Arc<Image> for perf boost.

Image used to be a trait, but no longer is, so boxing it is no longer
necessary.

1 files changed, 3 insertions, 3 deletions

diff --git a/components/net/image_cache_task.rs b/components/net/image_cache_task.rs
index a97d29b8d66..d5fedb7bca2 100644
--- a/components/net/image_cache_task.rs
+++ b/components/net/image_cache_task.rs
@@ -110,7 +110,7 @@ enum ImageState {
     Prefetching(AfterPrefetch),
     Prefetched(Vec<u8>),
     Decoding,
-    Decoded(Arc<Box<Image>>),
+    Decoded(Arc<Image>),
     Failed
 }
 
@@ -303,7 +303,7 @@ impl ImageCache {
                         load_from_memory(&data)
                     });
 
-                    let image = image.map(|image| Arc::new(box image));
+                    let image = image.map(|image| Arc::new(image));
                     to_cache.send(Msg::StoreImage(url.clone(), image)).unwrap();
                     debug!("image_cache_task: ended image decode for {}", url.serialize());
                 });
@@ -317,7 +317,7 @@ impl ImageCache {
         }
     }
 
-    fn store_image(&mut self, url: Url, image: Option<Arc<Box<Image>>>) {
+    fn store_image(&mut self, url: Url, image: Option<Arc<Image>>) {
 
         match self.get_state(&url) {
           ImageState::Decoding => {