servo: Merge #8206 - Cleanup layout interaction with canvas elements (from Ms2ger:dlb-canvas); r=jdm

Source-Repo: https://github.com/servo/servo
Source-Revision: 2091aafcfb32dffba836fde2ccddf4a183e88302

servo/components/layout/construct.rs

@@ -327,7 +327,8 @@ impl<'a> FlowConstructor<'a> {
             }
             Some(NodeTypeId::Element(ElementTypeId::HTMLElement(
                         HTMLElementTypeId::HTMLCanvasElement))) => {
-                SpecificFragmentInfo::Canvas(box CanvasFragmentInfo::new(node))
+                let data = node.canvas_data().unwrap();
+                SpecificFragmentInfo::Canvas(box CanvasFragmentInfo::new(node, data))
             }
             _ => {
                 // This includes pseudo-elements.