
Updates the GPU documentation on adding new builders/testers to clarify what to do if adding both a new parent builder and a tester triggered by it, as it turns out that it's not as simple as performing the tester-only steps two separate times. Change-Id: Iddb3336db0fc12a22e8cb73ac6aa3dffe13f0ffe Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2613667 Auto-Submit: Brian Sheedy <bsheedy@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Brian Sheedy <bsheedy@chromium.org> Cr-Commit-Position: refs/heads/master@{#840824}