GitLab

The CL introducing the results processor [1] broke reporting of
Telemetry's return_code when called via run_benchmark.

[1]: https://chromium-review.googlesource.com/c/chromium/src/+/1692986

This is a quick fix for that.

Adding tests to make sure we don't break this again in the future as
follow up CLs.

TBR=crouleau@chromium.org

Bug: 990472
Change-Id: I4139d4b7503bad6555b5ee8d919499dd32fbff37
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1735581Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
Commit-Queue: Juan Antonio Navarro Pérez <perezju@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683972}