Add chromedriver_unittests to masters.

Add chromedriver_unittests to masters.

This target is identical to chromedriver2_unittests and will eventually replace it, although we need to do this in phases so as not to break cq/lkgr.

This target has been part of chromium_builder_tests for a month.
BUG=298192
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=240492

[cmp, 2013-12-10 17:53:53]

+agable, iannucci for a full review

Ken, can you send the other reviews to them, too?

[cmp, 2013-12-10 17:54:13]

+agable for real

[agable, 2013-12-10 18:01:25]

LGTM, except for the buildrunner expectations, which either Robbie or Mike
should look at.

[kkania, 2013-12-10 20:41:24]

alright, let me know if there's anything i can do to help with the buildrunner
verification

[ghost stip (do not use), 2013-12-13 00:01:35]

I think the buildrunner expectations are unrelated to actual buildrunner. lgtm,
sorry for the lag on this

[commit-bot: I haz the power, 2013-12-13 00:05:38]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kkania@chromium.org/111363002/20001

[commit-bot: I haz the power, 2013-12-13 00:06:40]

Change committed as 240492