Currently all of the trybots which can run the webkit_tests step are on Windows 7. The divergence between layout tests for Windows 7 and later versions is about to become much greater. As a result there is a more pressing need to be able to run webkit_tests on Windows 10 trybots. While this is specifically about running webkit_tests on Windows 10 trybots, this is also more generally about being able to run webkit_tests on any Chromium trybot.

Ideally, for every bot on the waterfall there would be a corresponding 'real' trybot. This is generally considered rather expensive for commit queue bots. However, it would be beneficial to allow some means to kick off 'real' trybots manually. Somewhat less ideally, there would be some way for a patch to include a chromium/src change which would force webkit_tests to run. As a quick and dirty near term solution a Windows 10 bot could be added to the list of bots which run webkit_tests, or a property could be sent from 'git cl try' to request webkit_tests to be run.