Infra: Run tests under Bionic a number of linux builders

Bug: 1202745
Change-Id: I0ee276895a431b8bc61fb98ed2a0f9f06350b36f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2868849
Commit-Queue: Gary Tong <gatong@chromium.org>
Auto-Submit: Gary Tong <gatong@chromium.org>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#878672}
NOKEYCHECK=True
GitOrigin-RevId: fa8a76b4e432b86abaeae86f1d8db446f0be312b
2 files changed