[autotest] hqe aborted before starting do not get finished time

TEST=Run a job locally and abort it. Verify the finished time is
not set
BUG=chromium:391509
DEPLOY=scheduler

Change-Id: I1447ba4a7acef31a876267cd47de99b8bdfeaa4e
Reviewed-on: https://chromium-review.googlesource.com/212918
Reviewed-by: Fang Deng <fdeng@chromium.org>
Tested-by: Fang Deng <fdeng@chromium.org>
Commit-Queue: Fang Deng <fdeng@chromium.org>
2 files changed