If debugger was already attached, closing
the exit handle would incorrectly assert.
Bug: None
Change-Id: I322591c66a9885a260a87750e066ba2e9d07fe23
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28321
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>