The blink_downstream bots resemble the behavior of trybots with a few differences:

Instead of running with vs. without patch they run ToT vs. pinned version of a deps'ed project.

The allow to specify extra layout test expectations from a deps'ed project.

The allow to specify extra flags for testing.
 

The blink_downstream bots resemble the behavior of trybots with a few differences:

Instead of running with vs. without patch they run ToT vs. pinned version of a deps'ed project.

They allow to specify extra layout test expectations from a deps'ed project.

They allow to specify extra flags for testing.