Add a dummy implementation of all the XR Layer types

18 files changed, 337 insertions, 85 deletions

diff --git a/components/script/dom/mod.rs b/components/script/dom/mod.rs
index 30681be0ff2..76ed789e8ad 100644
--- a/components/script/dom/mod.rs
+++ b/components/script/dom/mod.rs
@@ -599,6 +599,10 @@ pub mod xmlhttprequest;
 pub mod xmlhttprequesteventtarget;
 pub mod xmlhttprequestupload;
 pub mod xmlserializer;
+pub mod xrcompositionlayer;
+pub mod xrcubelayer;
+pub mod xrcylinderlayer;
+pub mod xrequirectlayer;
 pub mod xrframe;
 pub mod xrhand;
 pub mod xrhittestresult;
@@ -612,6 +616,8 @@ pub mod xrjointspace;
 pub mod xrlayer;
 pub mod xrmediabinding;
 pub mod xrpose;
+pub mod xrprojectionlayer;
+pub mod xrquadlayer;
 pub mod xrray;
 pub mod xrreferencespace;
 pub mod xrrenderstate;
diff --git a/components/script/dom/webidls/XRCompositionLayer.webidl b/components/script/dom/webidls/XRCompositionLayer.webidl
new file mode 100644
index 00000000000..bde8aed6cdf
--- /dev/null
+++ b/components/script/dom/webidls/XRCompositionLayer.webidl
@@ -0,0 +1,20 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrcompositionlayer
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XRCompositionLayer : XRLayer {
+//   readonly attribute XRLayerLayout layout;
+//
+//   attribute boolean blendTextureSourceAlpha;
+//   attribute boolean? chromaticAberrationCorrection;
+//   attribute float? fixedFoveation;
+//
+//   readonly attribute boolean needsRedraw;
+//
+//   void destroy();
+};
diff --git a/components/script/dom/webidls/XRCubeLayer.webidl b/components/script/dom/webidls/XRCubeLayer.webidl
new file mode 100644
index 00000000000..66e8eb18130
--- /dev/null
+++ b/components/script/dom/webidls/XRCubeLayer.webidl
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrcubelayer
+
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XRCubeLayer : XRCompositionLayer {
+//   attribute XRSpace space;
+//   attribute DOMPointReadOnly orientation;
+//
+//   // Events
+//   attribute EventHandler onredraw;
+};
diff --git a/components/script/dom/webidls/XRCylinderLayer.webidl b/components/script/dom/webidls/XRCylinderLayer.webidl
new file mode 100644
index 00000000000..9a3e2d051c6
--- /dev/null
+++ b/components/script/dom/webidls/XRCylinderLayer.webidl
@@ -0,0 +1,20 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrcylinderlayer
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XRCylinderLayer : XRCompositionLayer {
+//   attribute XRSpace space;
+//   attribute XRRigidTransform transform;
+//
+//   attribute float radius;
+//   attribute float centralAngle;
+//   attribute float aspectRatio;
+//
+//   // Events
+//   attribute EventHandler onredraw;
+};
diff --git a/components/script/dom/webidls/XREquirectLayer.webidl b/components/script/dom/webidls/XREquirectLayer.webidl
new file mode 100644
index 00000000000..98a82bc80dd
--- /dev/null
+++ b/components/script/dom/webidls/XREquirectLayer.webidl
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrequirectlayer
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XREquirectLayer : XRCompositionLayer {
+//   attribute XRSpace space;
+//   attribute XRRigidTransform transform;
+//
+//   attribute float radius;
+//   attribute float centralHorizontalAngle;
+//   attribute float upperVerticalAngle;
+//   attribute float lowerVerticalAngle;
+//
+//   // Events
+//   attribute EventHandler onredraw;
+};
diff --git a/components/script/dom/webidls/XRLayer.webidl b/components/script/dom/webidls/XRLayer.webidl
index 60e314316dd..5f719db7bdb 100644
--- a/components/script/dom/webidls/XRLayer.webidl
+++ b/components/script/dom/webidls/XRLayer.webidl
@@ -5,71 +5,3 @@
 // https://immersive-web.github.io/webxr/#xrlayer
 [SecureContext, Exposed=Window, Pref="dom.webxr.enabled"]
 interface XRLayer : EventTarget {};
-
-// TODO: Implement the layer types
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XRCompositionLayer : XRLayer {
-//   readonly attribute XRLayerLayout layout;
-//
-//   attribute boolean blendTextureSourceAlpha;
-//   attribute boolean? chromaticAberrationCorrection;
-//   attribute float? fixedFoveation;
-//
-//   readonly attribute boolean needsRedraw;
-//
-//   void destroy();
-// };
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XRProjectionLayer : XRCompositionLayer {
-//   readonly attribute boolean ignoreDepthValues;
-// };
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XRQuadLayer : XRCompositionLayer {
-//   attribute XRSpace space;
-//   attribute XRRigidTransform transform;
-//
-//   attribute float width;
-//   attribute float height;
-//
-//   // Events
-//   attribute EventHandler onredraw;
-// };
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XRCylinderLayer : XRCompositionLayer {
-//   attribute XRSpace space;
-//   attribute XRRigidTransform transform;
-//
-//   attribute float radius;
-//   attribute float centralAngle;
-//   attribute float aspectRatio;
-//
-//   // Events
-//   attribute EventHandler onredraw;
-// };
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XREquirectLayer : XRCompositionLayer {
-//   attribute XRSpace space;
-//   attribute XRRigidTransform transform;
-//
-//   attribute float radius;
-//   attribute float centralHorizontalAngle;
-//   attribute float upperVerticalAngle;
-//   attribute float lowerVerticalAngle;
-//
-//   // Events
-//   attribute EventHandler onredraw;
-// };
-//
-// [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
-// interface XRCubeLayer : XRCompositionLayer {
-//   attribute XRSpace space;
-//   attribute DOMPointReadOnly orientation;
-//
-//   // Events
-//   attribute EventHandler onredraw;
-// };
diff --git a/components/script/dom/webidls/XRMediaBinding.webidl b/components/script/dom/webidls/XRMediaBinding.webidl
index 226e0653b33..87a858f098e 100644
--- a/components/script/dom/webidls/XRMediaBinding.webidl
+++ b/components/script/dom/webidls/XRMediaBinding.webidl
@@ -5,11 +5,11 @@
 // https://immersive-web.github.io/layers/#xrmediabindingtype
 [SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
 interface XRMediaBinding {
-  constructor(XRSession session);
+  [Throws] constructor(XRSession session);
 
-//  XRQuadLayer createQuadVideoLayer(HTMLVideoElement video, optional XRMediaLayerInit init = {});
-//  XRCylinderLayer createCylinderVideoLayer(HTMLVideoElement video, optional XRMediaLayerInit init = {});
-//  XREquirectLayer createEquirectVideoLayer(HTMLVideoElement video, optional XRMediaLayerInit init = {});
+  [Throws] XRQuadLayer createQuadLayer(HTMLVideoElement video, XRMediaLayerInit init);
+  [Throws] XRCylinderLayer createCylinderLayer(HTMLVideoElement video, XRMediaLayerInit init);
+  [Throws] XREquirectLayer createEquirectLayer(HTMLVideoElement video, XRMediaLayerInit init);
 };
 
 dictionary XRMediaLayerInit {
diff --git a/components/script/dom/webidls/XRProjectionLayer.webidl b/components/script/dom/webidls/XRProjectionLayer.webidl
new file mode 100644
index 00000000000..c96afe4c28d
--- /dev/null
+++ b/components/script/dom/webidls/XRProjectionLayer.webidl
@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrprojectionlayer
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XRProjectionLayer : XRCompositionLayer {
+//   readonly attribute boolean ignoreDepthValues;
+};
diff --git a/components/script/dom/webidls/XRQuadLayer.webidl b/components/script/dom/webidls/XRQuadLayer.webidl
new file mode 100644
index 00000000000..78c513ecdb9
--- /dev/null
+++ b/components/script/dom/webidls/XRQuadLayer.webidl
@@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// TODO: Implement the layer types
+// https://github.com/servo/servo/issues/27493
+
+// https://immersive-web.github.io/layers/#xrquadlayer
+[SecureContext, Exposed=Window, Pref="dom.webxr.layers.enabled"]
+interface XRQuadLayer : XRCompositionLayer {
+//   attribute XRSpace space;
+//   attribute XRRigidTransform transform;
+//
+//   attribute float width;
+//   attribute float height;
+//
+//   // Events
+//   attribute EventHandler onredraw;
+};
diff --git a/components/script/dom/webidls/XRWebGLBinding.webidl b/components/script/dom/webidls/XRWebGLBinding.webidl
index c57b59b7afc..5823423ef86 100644
--- a/components/script/dom/webidls/XRWebGLBinding.webidl
+++ b/components/script/dom/webidls/XRWebGLBinding.webidl
@@ -9,18 +9,18 @@ interface XRWebGLBinding {
 
 //  readonly attribute double nativeProjectionScaleFactor;
 
-//  XRProjectionLayer createProjectionLayer(XRTextureType textureType,
-//                                          optional XRProjectionLayerInit init);
-//  XRQuadLayer createQuadLayer(XRTextureType textureType,
-//                              optional XRQuadLayerInit init);
-//  XRCylinderLayer createCylinderLayer(XRTextureType textureType,
-//                                      optional XRCylinderLayerInit init);
-//  XREquirectLayer createEquirectLayer(XRTextureType textureType,
-//                                      optional XREquirectLayerInit init);
-//  XRCubeLayer createCubeLayer(optional XRCubeLayerInit init);
+  [Throws] XRProjectionLayer createProjectionLayer(XRTextureType textureType,
+                                          optional XRProjectionLayerInit init = {});
+  [Throws] XRQuadLayer createQuadLayer(XRTextureType textureType,
+                              optional XRQuadLayerInit init);
+  [Throws] XRCylinderLayer createCylinderLayer(XRTextureType textureType,
+                                      optional XRCylinderLayerInit init);
+  [Throws] XREquirectLayer createEquirectLayer(XRTextureType textureType,
+                                      optional XREquirectLayerInit init);
+  [Throws] XRCubeLayer createCubeLayer(optional XRCubeLayerInit init);
 
-//  XRWebGLSubImage getSubImage(XRCompositionLayer layer, XRFrame frame, optional XREye eye = "none");
-//  XRWebGLSubImage getViewSubImage(XRProjectionLayer layer, XRView view);
+  [Throws] XRWebGLSubImage getSubImage(XRCompositionLayer layer, XRFrame frame, optional XREye eye = "none");
+  [Throws] XRWebGLSubImage getViewSubImage(XRProjectionLayer layer, XRView view);
 };
 
 dictionary XRProjectionLayerInit {
diff --git a/components/script/dom/xrcompositionlayer.rs b/components/script/dom/xrcompositionlayer.rs
new file mode 100644
index 00000000000..5a4aa85d2fa
--- /dev/null
+++ b/components/script/dom/xrcompositionlayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrlayer::XRLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XRCompositionLayer {
+    xr_layer: XRLayer,
+}
diff --git a/components/script/dom/xrcubelayer.rs b/components/script/dom/xrcubelayer.rs
new file mode 100644
index 00000000000..71296ddc238
--- /dev/null
+++ b/components/script/dom/xrcubelayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XRCubeLayer {
+    composition_layer: XRCompositionLayer,
+}
diff --git a/components/script/dom/xrcylinderlayer.rs b/components/script/dom/xrcylinderlayer.rs
new file mode 100644
index 00000000000..2abe935f525
--- /dev/null
+++ b/components/script/dom/xrcylinderlayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XRCylinderLayer {
+    composition_layer: XRCompositionLayer,
+}
diff --git a/components/script/dom/xrequirectlayer.rs b/components/script/dom/xrequirectlayer.rs
new file mode 100644
index 00000000000..d6da61a5a9c
--- /dev/null
+++ b/components/script/dom/xrequirectlayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XREquirectLayer {
+    composition_layer: XRCompositionLayer,
+}
diff --git a/components/script/dom/xrmediabinding.rs b/components/script/dom/xrmediabinding.rs
index b0b6a0ac69c..5e1dfd3abeb 100644
--- a/components/script/dom/xrmediabinding.rs
+++ b/components/script/dom/xrmediabinding.rs
@@ -2,11 +2,19 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+use crate::dom::bindings::codegen::Bindings::XRMediaBindingBinding::XRMediaBindingBinding::XRMediaBindingMethods;
+use crate::dom::bindings::codegen::Bindings::XRMediaBindingBinding::XRMediaLayerInit;
+use crate::dom::bindings::error::Error;
+use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::Dom;
 use crate::dom::bindings::root::DomRoot;
+use crate::dom::htmlvideoelement::HTMLVideoElement;
 use crate::dom::window::Window;
+use crate::dom::xrcylinderlayer::XRCylinderLayer;
+use crate::dom::xrequirectlayer::XREquirectLayer;
+use crate::dom::xrquadlayer::XRQuadLayer;
 use crate::dom::xrsession::XRSession;
 use dom_struct::dom_struct;
 
@@ -29,7 +37,50 @@ impl XRMediaBinding {
     }
 
     #[allow(non_snake_case)]
-    pub fn Constructor(global: &Window, session: &XRSession) -> DomRoot<XRMediaBinding> {
-        XRMediaBinding::new(global, session)
+    pub fn Constructor(global: &Window, session: &XRSession) -> Fallible<DomRoot<XRMediaBinding>> {
+        // Step 1.
+        if session.is_ended() {
+            return Err(Error::InvalidState);
+        }
+
+        // Step 2.
+        if !session.is_immersive() {
+            return Err(Error::InvalidState);
+        }
+
+        // Steps 3-5.
+        Ok(XRMediaBinding::new(global, session))
+    }
+}
+
+impl XRMediaBindingMethods for XRMediaBinding {
+    /// https://immersive-web.github.io/layers/#dom-xrmediabinding-createquadlayer
+    fn CreateQuadLayer(
+        &self,
+        _: &HTMLVideoElement,
+        _: &XRMediaLayerInit,
+    ) -> Fallible<DomRoot<XRQuadLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrmediabinding-createcylinderlayer
+    fn CreateCylinderLayer(
+        &self,
+        _: &HTMLVideoElement,
+        _: &XRMediaLayerInit,
+    ) -> Fallible<DomRoot<XRCylinderLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrmediabinding-createequirectlayer
+    fn CreateEquirectLayer(
+        &self,
+        _: &HTMLVideoElement,
+        _: &XRMediaLayerInit,
+    ) -> Fallible<DomRoot<XREquirectLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
     }
 }
diff --git a/components/script/dom/xrprojectionlayer.rs b/components/script/dom/xrprojectionlayer.rs
new file mode 100644
index 00000000000..f5d6f68de67
--- /dev/null
+++ b/components/script/dom/xrprojectionlayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XRProjectionLayer {
+    composition_layer: XRCompositionLayer,
+}
diff --git a/components/script/dom/xrquadlayer.rs b/components/script/dom/xrquadlayer.rs
new file mode 100644
index 00000000000..86358a7d7b5
--- /dev/null
+++ b/components/script/dom/xrquadlayer.rs
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct XRQuadLayer {
+    composition_layer: XRCompositionLayer,
+}
diff --git a/components/script/dom/xrwebglbinding.rs b/components/script/dom/xrwebglbinding.rs
index a0c4846074b..64ea31e0bce 100644
--- a/components/script/dom/xrwebglbinding.rs
+++ b/components/script/dom/xrwebglbinding.rs
@@ -2,14 +2,33 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+use crate::dom::bindings::codegen::Bindings::XRViewBinding::XREye;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRCubeLayerInit;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRCylinderLayerInit;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XREquirectLayerInit;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRProjectionLayerInit;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRQuadLayerInit;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRTextureType;
+use crate::dom::bindings::codegen::Bindings::XRWebGLBindingBinding::XRWebGLBindingBinding::XRWebGLBindingMethods;
 use crate::dom::bindings::codegen::UnionTypes::WebGLRenderingContextOrWebGL2RenderingContext;
+use crate::dom::bindings::error::Error;
+use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::Dom;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use crate::dom::window::Window;
+use crate::dom::xrcompositionlayer::XRCompositionLayer;
+use crate::dom::xrcubelayer::XRCubeLayer;
+use crate::dom::xrcylinderlayer::XRCylinderLayer;
+use crate::dom::xrequirectlayer::XREquirectLayer;
+use crate::dom::xrframe::XRFrame;
+use crate::dom::xrprojectionlayer::XRProjectionLayer;
+use crate::dom::xrquadlayer::XRQuadLayer;
 use crate::dom::xrsession::XRSession;
+use crate::dom::xrview::XRView;
+use crate::dom::xrwebglsubimage::XRWebGLSubImage;
 use dom_struct::dom_struct;
 
 #[dom_struct]
@@ -54,3 +73,72 @@ impl XRWebGLBinding {
         XRWebGLBinding::new(global, session, &context)
     }
 }
+
+impl XRWebGLBindingMethods for XRWebGLBinding {
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-createprojectionlayer
+    fn CreateProjectionLayer(
+        &self,
+        _: XRTextureType,
+        _: &XRProjectionLayerInit,
+    ) -> Fallible<DomRoot<XRProjectionLayer>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-createquadlayer
+    fn CreateQuadLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XRQuadLayerInit>,
+    ) -> Fallible<DomRoot<XRQuadLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcylinderlayer
+    fn CreateCylinderLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XRCylinderLayerInit>,
+    ) -> Fallible<DomRoot<XRCylinderLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-createequirectlayer
+    fn CreateEquirectLayer(
+        &self,
+        _: XRTextureType,
+        _: &Option<XREquirectLayerInit>,
+    ) -> Fallible<DomRoot<XREquirectLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcubelayer
+    fn CreateCubeLayer(&self, _: &Option<XRCubeLayerInit>) -> Fallible<DomRoot<XRCubeLayer>> {
+        // https://github.com/servo/servo/issues/27493
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-getsubimage
+    fn GetSubImage(
+        &self,
+        _: &XRCompositionLayer,
+        _: &XRFrame,
+        _: XREye,
+    ) -> Fallible<DomRoot<XRWebGLSubImage>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+
+    /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-getviewsubimage
+    fn GetViewSubImage(
+        &self,
+        _: &XRProjectionLayer,
+        _: &XRView,
+    ) -> Fallible<DomRoot<XRWebGLSubImage>> {
+        // https://github.com/servo/servo/issues/27468
+        Err(Error::NotSupported)
+    }
+}