GitLab

The new test verifies that system tracing output on CrOS, Cast and Win
actually ends up in a trace - in preparation for porting the respective
tracing agents to the new perfetto service.

Bug: 900603
Change-Id: I8383a907d2aa843cb2f67f5300e82c7684f116fc
Reviewed-on: https://chromium-review.googlesource.com/c/1309835
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Reviewed-by: oysteine <oysteine@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604546}