scheduler: Record time domain snapshot consistently
scheduler: Record time domain snapshot consistently

Don't try to insert integers into an array while snapshotting the time
domain.

TBR=alexclarke@chromium.org

Review URL: https://codereview.chromium.org/1817183003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#382357}

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