Fix race in go/timeout
Fix race in go/timeout

Bug: skia:7206
Change-Id: Ic2820c36d0958fdeac37a0f2431962bbec271e48
Reviewed-on: https://skia-review.googlesource.com/70643
Commit-Queue: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>

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