keyboard: add a failTestTimeout wrapper

Add a wrapper so that it could be invoked from python side.

BUG=chrome-os-partner:44948
TEST=manually tested.

Change-Id: I726221a2752efcc171fd9c8628a721f67f20d2f5
Reviewed-on: https://chromium-review.googlesource.com/297229
Commit-Ready: Shyh-In Hwang <josephsih@chromium.org>
Tested-by: Michael H Yang <michael.h.yang@intel.com>
Reviewed-by: Bowgo Tsai <bowgotsai@chromium.org>
1 file changed