canvas: Remove all the canvas layerization infrastructure

It was never complete, and with webrender as a backend the way we render
WebGL contexts has changed a bit.

This should remove quite a bit of overhead.

1 files changed, 0 insertions, 18 deletions

diff --git a/components/canvas_traits/lib.rs b/components/canvas_traits/lib.rs
index 87f1f8c7e41..24af48aaa49 100644
--- a/components/canvas_traits/lib.rs
+++ b/components/canvas_traits/lib.rs
@@ -55,7 +55,6 @@ pub enum CanvasMsg {
     Canvas2d(Canvas2dMsg),
     Common(CanvasCommonMsg),
     FromLayout(FromLayoutMsg),
-    FromPaint(FromPaintMsg),
     WebGL(CanvasWebGLMsg),
 }
 
@@ -82,23 +81,6 @@ pub enum FromLayoutMsg {
     SendData(IpcSender<CanvasData>),
 }
 
-#[derive(Clone)]
-pub enum FromPaintMsg {
-    SendNativeSurface(Sender<NativeSurface>),
-}
-
-impl Serialize for FromPaintMsg {
-    fn serialize<S>(&self, _: &mut S) -> Result<(), S::Error> where S: Serializer {
-        panic!("can't serialize a `FromPaintMsg`!")
-    }
-}
-
-impl Deserialize for FromPaintMsg {
-    fn deserialize<D>(_: &mut D) -> Result<FromPaintMsg, D::Error> where D: Deserializer {
-        panic!("can't deserialize a `FromPaintMsg`!")
-    }
-}
-
 #[derive(Clone, Deserialize, Serialize)]
 pub enum Canvas2dMsg {
     Arc(Point2D<f32>, f32, f32, f32, bool),