Auto merge of #27499 - asajeffrey:webxr-xrmedia-dummy, r=Manishearth

Add dummy implementations of missing XR layer types

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Add dummy implementations of the missing layer types, and the functions that create them.

---
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes

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1 files changed, 6 insertions, 0 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;