The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra.git/+/fafd666d1ed16f78ff5624a09bc7f09308e80782

commit fafd666d1ed16f78ff5624a09bc7f09308e80782
Author: Chan Li <chanli@chromium.org>
Date: Mon Nov 14 20:57:02 2016

[Findit] Add cron job to calculate confidence weekly.

BUG= 664882 

Change-Id: Ia35fdda5a89f20645dd974bfc4b1f99be72d1d19
Reviewed-on: https://chromium-review.googlesource.com/411040
Commit-Queue: Chan Li <chanli@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>

[modify] https://crrev.com/fafd666d1ed16f78ff5624a09bc7f09308e80782/appengine/findit/cron.yaml
[add] https://crrev.com/fafd666d1ed16f78ff5624a09bc7f09308e80782/appengine/findit/handlers/calculate_confidence_scores.py
[add] https://crrev.com/fafd666d1ed16f78ff5624a09bc7f09308e80782/appengine/findit/handlers/test/calculate_confidence_scores_test.py
[modify] https://crrev.com/fafd666d1ed16f78ff5624a09bc7f09308e80782/appengine/findit/main.py
[modify] https://crrev.com/fafd666d1ed16f78ff5624a09bc7f09308e80782/appengine/findit/util_scripts/remote_queries/calculate_confidence_scores.py