Auto merge of #24708 - szeged:webgpu-base, r=gterzian,kvark

Initial implementation of WebGPU API

<!-- Please describe your changes on the following line: -->
- Added the WebIDL bindings for GPU and GPUadapter interfaces.
- Created a background thread for WebGPU api calls.
- Established the async communication between the background thread and the WebGPU interfaces.
- Implemented the `requesAdapter` function of `navigator.gpu`

`./mach test-tidy` reports an error due to the different `arrayvec` version used in `servo` and `webgpu`, so added it to the ignore list in `servo-tidy.toml`

---
<!-- 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
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes addresses a part of #https://github.com/servo/servo/issues/24706

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cc @jdm, cc @kvark

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1 files changed, 8 insertions, 0 deletions

diff --git a/components/script/dom/navigator.rs b/components/script/dom/navigator.rs
index 127883dd956..cb8fb2365cd 100644
--- a/components/script/dom/navigator.rs
+++ b/components/script/dom/navigator.rs
@@ -11,6 +11,7 @@ use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bluetooth::Bluetooth;
 use crate::dom::gamepadlist::GamepadList;
+use crate::dom::gpu::GPU;
 use crate::dom::mediadevices::MediaDevices;
 use crate::dom::mediasession::MediaSession;
 use crate::dom::mimetypearray::MimeTypeArray;
@@ -36,6 +37,7 @@ pub struct Navigator {
     gamepads: MutNullableDom<GamepadList>,
     permissions: MutNullableDom<Permissions>,
     mediasession: MutNullableDom<MediaSession>,
+    gpu: MutNullableDom<GPU>,
 }
 
 impl Navigator {
@@ -51,6 +53,7 @@ impl Navigator {
             gamepads: Default::default(),
             permissions: Default::default(),
             mediasession: Default::default(),
+            gpu: Default::default(),
         }
     }
 
@@ -205,4 +208,9 @@ impl NavigatorMethods for Navigator {
             MediaSession::new(window)
         })
     }
+
+    // https://gpuweb.github.io/gpuweb/#dom-navigator-gpu
+    fn Gpu(&self) -> DomRoot<GPU> {
+        self.gpu.or_init(|| GPU::new(&self.global()))
+    }
 }