Auto merge of #27614 - kunalmohan:webgpu-cts, r=kvark

Minor fixes and update cts

<!-- Please describe your changes on the following line: -->
- Prevent redundant buffer and texture destroy calls.
- More subtests for B2B copy pass now.
- All tests under `setViewport()` and `setScissorRect()` pass now.
- Tests for `createTexture()` do not crash. More than 50% of them pass now.

r?@kvark

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)

<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because ___

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2 files changed, 8 insertions, 0 deletions

diff --git a/components/script/dom/gpubuffer.rs b/components/script/dom/gpubuffer.rs
index 2d721465e68..60a6075cb7f 100644
--- a/components/script/dom/gpubuffer.rs
+++ b/components/script/dom/gpubuffer.rs
@@ -184,6 +184,7 @@ impl GPUBufferMethods for GPUBuffer {
             GPUBufferState::Mapped | GPUBufferState::MappedAtCreation => {
                 self.Unmap();
             },
+            GPUBufferState::Destroyed => return,
             _ => {},
         };
         if let Err(e) = self
diff --git a/components/script/dom/gputexture.rs b/components/script/dom/gputexture.rs
index 175ec7c90cc..b473e52eaae 100644
--- a/components/script/dom/gputexture.rs
+++ b/components/script/dom/gputexture.rs
@@ -18,6 +18,7 @@ use crate::dom::gpudevice::{
 };
 use crate::dom::gputextureview::GPUTextureView;
 use dom_struct::dom_struct;
+use std::cell::Cell;
 use std::num::NonZeroU32;
 use std::string::String;
 use webgpu::{
@@ -40,6 +41,7 @@ pub struct GPUTexture {
     dimension: GPUTextureDimension,
     format: GPUTextureFormat,
     texture_usage: u32,
+    destroyed: Cell<bool>,
 }
 
 impl GPUTexture {
@@ -67,6 +69,7 @@ impl GPUTexture {
             dimension,
             format,
             texture_usage,
+            destroyed: Cell::new(false),
         }
     }
 
@@ -197,6 +200,9 @@ impl GPUTextureMethods for GPUTexture {
 
     /// https://gpuweb.github.io/gpuweb/#dom-gputexture-destroy
     fn Destroy(&self) {
+        if self.destroyed.get() {
+            return;
+        }
         if let Err(e) = self
             .channel
             .0
@@ -207,5 +213,6 @@ impl GPUTextureMethods for GPUTexture {
                 self.texture.0, e
             );
         };
+        self.destroyed.set(true);
     }
 }