Auto merge of #23546 - asajeffrey:magicleap-webvr-second-cut, r=Manishearth

Add Servo3D immersive demo for magicleap

<!-- Please describe your changes on the following line: -->

An immersive mode demo for magicleap.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors (apart from dupes, sigh)
- [X] These changes fix #22402 (GitHub issue number if applicable)
- [X] These changes do not require tests because it's a new platform

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23546)
<!-- Reviewable:end -->

components/compositing/windowing.rs

@@ -161,10 +161,10 @@ pub trait WindowMethods {
 
 pub trait EmbedderMethods {
     /// Returns a thread-safe object to wake up the window's event loop.
-    fn create_event_loop_waker(&self) -> Box<dyn EventLoopWaker>;
+    fn create_event_loop_waker(&mut self) -> Box<dyn EventLoopWaker>;
     /// Register services with a VRServiceManager.
     fn register_vr_services(
-        &self,
+        &mut self,
         _: &mut VRServiceManager,
         _: &mut Vec<Box<WebVRMainThreadHeartbeat>>,
     ) {

components/script/dom/window.rs

@@ -1436,7 +1436,7 @@ impl Window {
 
         let complete = match join_port.try_recv() {
             Err(TryRecvError::Empty) => {
-                info!("script: waiting on layout");
+                debug!("script: waiting on layout");
                 join_port.recv().unwrap()
             },
             Ok(reflow_complete) => reflow_complete,

components/servo/lib.rs

@@ -199,7 +199,7 @@ impl<Window> Servo<Window>
 where
     Window: WindowMethods + 'static + ?Sized,
 {
-    pub fn new(embedder: Box<EmbedderMethods>, window: Rc<Window>) -> Servo<Window> {
+    pub fn new(mut embedder: Box<EmbedderMethods>, window: Rc<Window>) -> Servo<Window> {
         // Global configuration options, parsed from the command line.
         let opts = opts::get();
 

components/webvr/Cargo.toml

@@ -22,7 +22,8 @@ gleam = "0.6"
 ipc-channel = "0.11.2"
 log = "0.4"
 msg = {path = "../msg"}
-rust-webvr = {version = "0.11.3", features = ["mock", "openvr", "vrexternal"]}
+rust-webvr = {version = "0.11.4", features = ["mock", "openvr", "vrexternal"]}
+rust-webvr-api = "0.11.4"
 script_traits = {path = "../script_traits"}
 servo_config = {path = "../config"}
 webvr_traits = {path = "../webvr_traits" }

components/webvr/lib.rs

@@ -12,3 +12,4 @@ pub use crate::webvr_thread::{WebVRCompositorHandler, WebVRThread};
 pub use rust_webvr::api::VRExternalShmemPtr;
 pub use rust_webvr::VRMainThreadHeartbeat;
 pub use rust_webvr::VRServiceManager;
+pub use rust_webvr_api::VRService;

components/webvr_traits/Cargo.toml

@@ -13,5 +13,5 @@ path = "lib.rs"
 [dependencies]
 ipc-channel = "0.11"
 msg = {path = "../msg"}
-rust-webvr-api = {version = "0.11.1", features = ["ipc"]}
+rust-webvr-api = {version = "0.11.4", features = ["ipc"]}
 serde = "1.0"