This page lists all the steps needed in order to add an `rtc_test` target to
WebRTC's BUILD.gn files and ensure the test binary will run on the presubmit and
postsubmit infrastructure.
1. While working on your CL, add an `rtc_test` target, with `testonly = true`,
and `../test:test_main` among its dependencies (`rtc_test` targets require
a `main()` function).
The bots will execute the new configs as part of the CQ. Inspect some logs to
verify that your test is in fact executed by the bots where you expect them to be.