Add XRRigidTransform attributes

components/script/dom/webidls/XRRigidTransform.webidl

@@ -7,7 +7,7 @@
 [SecureContext, Exposed=Window, Pref="dom.webxr.enabled",
  Constructor(optional DOMPointInit position, optional DOMPointInit orientation)]
 interface XRRigidTransform {
-  // readonly attribute DOMPointReadOnly position;
-  // readonly attribute DOMPointReadOnly orientation;
+  readonly attribute DOMPointReadOnly position;
+  readonly attribute DOMPointReadOnly orientation;
   // readonly attribute Float32Array matrix;
 };

components/script/dom/xrrigidtransform.rs

@@ -4,6 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::DOMPointBinding::DOMPointInit;
 use crate::dom::bindings::codegen::Bindings::XRRigidTransformBinding;
+use crate::dom::bindings::codegen::Bindings::XRRigidTransformBinding::XRRigidTransformMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
@@ -56,3 +57,14 @@ impl XRRigidTransform {
         Ok(XRRigidTransform::new(window, &position, &orientation))
     }
 }
+
+impl XRRigidTransformMethods for XRRigidTransform {
+    // https://immersive-web.github.io/webxr/#dom-xrrigidtransform-position
+    fn Position(&self) -> DomRoot<DOMPointReadOnly> {
+        DomRoot::from_ref(&self.position)
+    }
+    // https://immersive-web.github.io/webxr/#dom-xrrigidtransform-orientation
+    fn Orientation(&self) -> DomRoot<DOMPointReadOnly> {
+        DomRoot::from_ref(&self.orientation)
+    }
+}