The builder + triggered tester replace the old compile-only
bot. Ran now as experiment for a few days.

BUG=535160
TBR=sergiyb@chromium.org, kjellander@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1872783002

Cr-Commit-Position: refs/heads/master@{#35360}