Move script gpu files into webgpu folder (#34415)

Signed-off-by: atbrakhi <atbrakhi@igalia.com>

components/script/dom/webgpu/gpucommandbuffer.rs

@@ -0,0 +1,88 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use dom_struct::dom_struct;
+use webgpu::{WebGPU, WebGPUCommandBuffer, WebGPURequest};
+
+use crate::dom::bindings::cell::DomRefCell;
+use crate::dom::bindings::codegen::Bindings::WebGPUBinding::GPUCommandBufferMethods;
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
+use crate::dom::bindings::root::DomRoot;
+use crate::dom::bindings::str::USVString;
+use crate::dom::globalscope::GlobalScope;
+
+#[dom_struct]
+pub struct GPUCommandBuffer {
+    reflector_: Reflector,
+    #[ignore_malloc_size_of = "defined in webgpu"]
+    #[no_trace]
+    channel: WebGPU,
+    label: DomRefCell<USVString>,
+    #[no_trace]
+    command_buffer: WebGPUCommandBuffer,
+}
+
+impl GPUCommandBuffer {
+    fn new_inherited(
+        channel: WebGPU,
+        command_buffer: WebGPUCommandBuffer,
+        label: USVString,
+    ) -> Self {
+        Self {
+            channel,
+            reflector_: Reflector::new(),
+            label: DomRefCell::new(label),
+            command_buffer,
+        }
+    }
+
+    pub fn new(
+        global: &GlobalScope,
+        channel: WebGPU,
+        command_buffer: WebGPUCommandBuffer,
+        label: USVString,
+    ) -> DomRoot<Self> {
+        reflect_dom_object(
+            Box::new(GPUCommandBuffer::new_inherited(
+                channel,
+                command_buffer,
+                label,
+            )),
+            global,
+        )
+    }
+}
+
+impl Drop for GPUCommandBuffer {
+    fn drop(&mut self) {
+        if let Err(e) = self
+            .channel
+            .0
+            .send(WebGPURequest::DropCommandBuffer(self.command_buffer.0))
+        {
+            warn!(
+                "Failed to send DropCommandBuffer({:?}) ({})",
+                self.command_buffer.0, e
+            );
+        }
+    }
+}
+
+impl GPUCommandBuffer {
+    pub fn id(&self) -> WebGPUCommandBuffer {
+        self.command_buffer
+    }
+}
+
+impl GPUCommandBufferMethods<crate::DomTypeHolder> for GPUCommandBuffer {
+    /// <https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label>
+    fn Label(&self) -> USVString {
+        self.label.borrow().clone()
+    }
+
+    /// <https://gpuweb.github.io/gpuweb/#dom-gpuobjectbase-label>
+    fn SetLabel(&self, value: USVString) {
+        *self.label.borrow_mut() = value;
+    }
+}