diff --git a/src/components/compositing/compositor_task.rs b/src/components/compositing/compositor_task.rs
index 6f8bae37728..be87ce9462e 100644
--- a/src/components/compositing/compositor_task.rs
+++ b/src/components/compositing/compositor_task.rs
@@ -126,17 +126,6 @@ impl RenderListener for CompositorChan {
         self.chan.send(RenderMsgDiscarded);
     }
 
-    fn set_layer_clip_rect(&self,
-                           pipeline_id: PipelineId,
-                           layer_id: LayerId,
-                           new_rect: Rect<uint>) {
-        let new_rect = Rect(Point2D(new_rect.origin.x as f32,
-                                    new_rect.origin.y as f32),
-                            Size2D(new_rect.size.width as f32,
-                                   new_rect.size.height as f32));
-        self.chan.send(SetLayerClipRect(pipeline_id, layer_id, new_rect))
-    }
-
     fn set_render_state(&self, render_state: RenderState) {
         self.chan.send(ChangeRenderState(render_state))
     }
diff --git a/src/components/msg/compositor_msg.rs b/src/components/msg/compositor_msg.rs
index d8a8e35146f..6008e4fca23 100644
--- a/src/components/msg/compositor_msg.rs
+++ b/src/components/msg/compositor_msg.rs
@@ -94,11 +94,6 @@ pub trait RenderListener {
                                       metadata: Vec<LayerMetadata>,
                                       epoch: Epoch);
 
-    fn set_layer_clip_rect(&self,
-                           pipeline_id: PipelineId,
-                           layer_id: LayerId,
-                           new_rect: Rect<uint>);
-
     /// Sends new tiles for the given layer to the compositor.
     fn paint(&self,
              pipeline_id: PipelineId,