[WebGPU] validateLinearTextureData is incorrect for single row textur…

…es (height == 1)

https://bugs.webkit.org/show_bug.cgi?id=264139
<rdar://problem/117891312>

Reviewed by Tadeu Zagallo.

rowsPerImage is only used for height > 1, we don't need to validate it when it
is not used.

* Source/WebGPU/WebGPU/Texture.mm:
(WebGPU::Texture::validateLinearTextureData):

Canonical link: https://commits.webkit.org/270187@main

Source/WebGPU/WebGPU/Texture.mm

@@ -2799,7 +2799,7 @@ static WGPUExtent3D imageCopyTextureSubresourceSize(const WGPUImageCopyTexture&
             return false;
     }
 
-    if (layout.rowsPerImage != WGPU_COPY_STRIDE_UNDEFINED) {
+    if (copyExtent.height > 1 && layout.rowsPerImage != WGPU_COPY_STRIDE_UNDEFINED) {
         if (layout.rowsPerImage < heightInBlocks)
             return false;
     }