Sometimes some tests failed due to test long execution while timeout was computed to negative value. Bug: None Change-Id: Icb666170323f6b757a409db575d36116f57632d8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165691 Commit-Queue: Yura Yaroshevich <yura.yaroshevich@gmail.com> Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Cr-Commit-Position: refs/heads/master@{#30245}