Expire GPUAdapter on the first successful requestDevice - #3936
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Co-authored-by: Austin Eng <213reeses@gmail.com>
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The WebGPU spec changed to make GPUAdapter a single-use object: once it successfully creates a device, it cannot create more devices. gpuweb/gpuweb#3936 The spec returns an already-lost device, and this should be implemented in Dawn eventually, but as a first step for V1, we implement this as a requestDevice() rejection in Blink. We could inject a device loss (as the deleted code in this CL does), but an exception gives us more leeway to change the behavior/spec in a pseudo-non-breaking way. Finally, the old GPUAdapter invalidation code is removed, because it's obsoleted by this change: the adapter is already necessarily invalidated by the time a device coming from it could be lost. Test: adapter_single_use.https.html Bug: 1234617 Change-Id: I8b68648bca415e067cafca01cc2572d6949f1c27 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4358569 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Kai Ninomiya <kainino@chromium.org> Cr-Commit-Position: refs/heads/main@{#1120580}
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Fixes #1630
Test issue: gpuweb/cts#2380