Auto merge of #24752 - asajeffrey:split-surfman-chains-api-and-impl, r=jdm

Avoid recompiling script every time surfman changes

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

Uses a version of webxr where webxr-api doesn't depend on surfman, so we can make changes to it without rebuilding script.

---
<!-- 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
- [x] These changes do not require tests because it's just build issues

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components/canvas/Cargo.toml

@@ -40,4 +40,5 @@ webrender_traits = {path = "../webrender_traits"}
 webxr-api = {git = "https://github.com/servo/webxr", features = ["ipc"]}
 # NOTE: the sm-angle feature only enables angle on windows, not other platforms!
 surfman = { version = "0.1", features = ["sm-angle", "sm-osmesa"] }
-surfman-chains = "0.1"
+surfman-chains = "0.2"
+surfman-chains-api = "0.2"

components/canvas/webgl_mode/inprocess.rs

@@ -19,6 +19,8 @@ use surfman::platform::generic::universal::device::Device;
 use surfman::platform::generic::universal::surface::SurfaceTexture;
 use surfman::SurfaceInfo;
 use surfman_chains::SwapChains;
+use surfman_chains_api::SwapChainAPI;
+use surfman_chains_api::SwapChainsAPI;
 use webrender_traits::{WebrenderExternalImageApi, WebrenderExternalImageRegistry};
 use webxr_api::SwapChainId as WebXRSwapChainId;
 

components/canvas/webgl_thread.rs

@@ -70,6 +70,7 @@ use surfman::SurfaceAccess;
 use surfman::SurfaceInfo;
 use surfman::SurfaceType;
 use surfman_chains::SwapChains;
+use surfman_chains_api::SwapChainsAPI;
 use webrender_traits::{WebrenderExternalImageRegistry, WebrenderImageHandlerType};
 use webxr_api::SwapChainId as WebXRSwapChainId;
 

components/compositing/Cargo.toml

@@ -41,7 +41,7 @@ webrender = {git = "https://github.com/servo/webrender", features = ["capture"]}
 webrender_api = {git = "https://github.com/servo/webrender", features = ["ipc"]}
 webvr_traits = {path = "../webvr_traits"}
 webvr = {path = "../webvr"}
-webxr-api = {git = "https://github.com/servo/webxr"}
+webxr = {git = "https://github.com/servo/webxr"}
 
 [build-dependencies]
 toml = "0.5"

components/compositing/compositor.rs

@@ -182,7 +182,7 @@ pub struct IOCompositor<Window: WindowMethods + ?Sized> {
     webvr_heartbeats: Vec<Box<dyn WebVRMainThreadHeartbeat>>,
 
     /// Some XR devices want to run on the main thread.
-    pub webxr_main_thread: webxr_api::MainThreadRegistry,
+    pub webxr_main_thread: webxr::MainThreadRegistry,
 
     /// Map of the pending paint metrics per layout thread.
     /// The layout thread for each specific pipeline expects the compositor to

components/compositing/compositor_thread.rs

@@ -164,5 +164,5 @@ pub struct InitialCompositorState {
     pub webrender_document: webrender_api::DocumentId,
     pub webrender_api: webrender_api::RenderApi,
     pub webvr_heartbeats: Vec<Box<dyn WebVRMainThreadHeartbeat>>,
-    pub webxr_main_thread: webxr_api::MainThreadRegistry,
+    pub webxr_main_thread: webxr::MainThreadRegistry,
 }

components/compositing/windowing.rs

@@ -19,6 +19,7 @@ use std::fmt::{Debug, Error, Formatter};
 use std::rc::Rc;
 use std::time::Duration;
 use style_traits::DevicePixel;
+
 use webrender_api::units::DevicePoint;
 use webrender_api::units::{DeviceIntPoint, DeviceIntRect, DeviceIntSize};
 use webrender_api::ScrollLocation;
@@ -176,7 +177,7 @@ pub trait EmbedderMethods {
     }
 
     /// Register services with a WebXR Registry.
-    fn register_webxr(&mut self, _: &mut webxr_api::MainThreadRegistry) {}
+    fn register_webxr(&mut self, _: &mut webxr::MainThreadRegistry) {}
 }
 
 #[derive(Clone, Copy, Debug)]

components/servo/Cargo.toml

@@ -82,6 +82,7 @@ webdriver_server = {path = "../webdriver_server", optional = true}
 webvr = {path = "../webvr"}
 webvr_traits = {path = "../webvr_traits"}
 webxr-api = {git = "https://github.com/servo/webxr"}
+webxr = {git = "https://github.com/servo/webxr"}
 surfman = { version = "0.1", features = ["sm-osmesa"] }
 
 [target.'cfg(all(not(target_os = "windows"), not(target_os = "ios"), not(target_os="android"), not(target_arch="arm"), not(target_arch="aarch64")))'.dependencies]

components/servo/lib.rs

@@ -422,7 +422,7 @@ where
 
         // For the moment, we enable use both the webxr crate and the rust-webvr crate,
         // but we are migrating over to just using webxr.
-        let mut webxr_main_thread = webxr_api::MainThreadRegistry::new(event_loop_waker)
+        let mut webxr_main_thread = webxr::MainThreadRegistry::new(event_loop_waker)
             .expect("Failed to create WebXR device registry");
         if pref!(dom.webxr.enabled) {
             embedder.register_webxr(&mut webxr_main_thread);
@@ -1010,7 +1010,7 @@ fn create_webgl_threads<W>(
     webrender: &mut webrender::Renderer,
     webrender_api_sender: webrender_api::RenderApiSender,
     webvr_compositor: Option<Box<WebVRCompositorHandler>>,
-    webxr_main_thread: &mut webxr_api::MainThreadRegistry,
+    webxr_main_thread: &mut webxr::MainThreadRegistry,
     external_image_handlers: &mut WebrenderExternalImageHandlers,
     external_images: Arc<Mutex<WebrenderExternalImageRegistry>>,
 ) -> WebGLThreads