GitLab

Different test targets should be handled differently depending on
whether they require a display server:
* If they do, download and starts an ash-chrome before running tests.
* Otherwise, run them directly like a regular Linux build.

Bug: 1104318
Change-Id: I10e15bc31efbb502c60cd797f59c1a5c2613631a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2303973Reviewed-by: Dirk Pranke <dpranke@google.com>
Reviewed-by: Sven Zheng <svenzheng@chromium.org>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#789731}