1 files changed, 14 insertions, 0 deletions
diff --git a/components/script/dom/xrwebglbinding.rs b/components/script/dom/xrwebglbinding.rs
index 27435aa3ddc..4f5efaa3cf7 100644
--- a/components/script/dom/xrwebglbinding.rs
+++ b/components/script/dom/xrwebglbinding.rs
@@ -16,6 +16,7 @@ use crate::dom::xrlayer::XRLayer;
 use crate::dom::xrsession::XRSession;
 use crate::dom::xrview::XRView;
 use crate::dom::xrwebglsubimage::XRWebGLSubImage;
+use canvas_traits::webgl::WebGLContextId;
 use dom_struct::dom_struct;
 
 #[dom_struct]
@@ -53,6 +54,19 @@ impl WebGLRenderingContextOrWebGL2RenderingContext {
     }
 }
 
+impl RootedWebGLRenderingContextOrWebGL2RenderingContext {
+    pub(crate) fn context_id(&self) -> WebGLContextId {
+        match self {
+            RootedWebGLRenderingContextOrWebGL2RenderingContext::WebGLRenderingContext(
+                ref context,
+            ) => context.context_id(),
+            RootedWebGLRenderingContextOrWebGL2RenderingContext::WebGL2RenderingContext(
+                ref context,
+            ) => context.base_context().context_id(),
+        }
+    }
+}
+
 impl XRWebGLBindingMethods for XRWebGLBinding {
     /// https://immersive-web.github.io/layers/#dom-xrwebglbinding-getsubimage
     fn GetSubImage(&self, _layer: &XRLayer, _frame: &XRFrame) -> Option<DomRoot<XRWebGLSubImage>> {