bisect-kit: performance result is independent to test pass/fail

Even test failed, there may still have performance value result, like
failure count, etc. So go ahead parse result for metrics, no matter the
test failed or not.

BUG=chromium:899470
TEST=run eval_cros_autotest.py against failing graphics_VTSwitch

Change-Id: I418d61e0ffffd7a0e9d267de8744b45328c09f06
Reviewed-on: https://chromium-review.googlesource.com/1297559
Commit-Ready: Kuang-che Wu <kcwu@chromium.org>
Tested-by: Kuang-che Wu <kcwu@chromium.org>
Reviewed-by: Kuang-che Wu <kcwu@chromium.org>
1 file changed