The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/4b63985c9d1e1d854a877d3744de565e6cbeed0a

commit 4b63985c9d1e1d854a877d3744de565e6cbeed0a
Author: Chan <chanli@chromium.org>
Date: Fri Dec 07 02:47:05 2018

[Findit] Generate flake reports by querying flakes.

We have already saved some useful data in flakes (like weekly counts). Querying from flakes should help to simplify the process of generating flake reports.

Bug:  911259 
Change-Id: I43ad9d6e0a94e06e7bee7d4d4d6ef6cdd57d65b7
Reviewed-on: https://chromium-review.googlesource.com/c/1359069
Reviewed-by: Yuke Liao <liaoyuke@chromium.org>
Reviewed-by: Roberto Carrillo <robertocn@chromium.org>
Commit-Queue: Chan Li <chanli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#19411}
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/test/flake_issue_test.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/services/flake_reporting/test/component_test.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/reporting/report.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/services/flake_detection/detect_flake_occurrences.py
[add] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/reporting/test/__init__.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/services/flake_reporting/component.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/libs/time_util.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/handlers/flake/reporting/generate_report.py
[add] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/reporting/test/report_test.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/waterfall/test/wf_testcase.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/test/flake_test.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/flake_issue.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/index.yaml
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/services/flake_issue_util.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/handlers/flake/reporting/test/generate_report_test.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/model/flake/flake.py
[modify] https://crrev.com/4b63985c9d1e1d854a877d3744de565e6cbeed0a/appengine/findit/libs/test/time_util_test.py