Autotest: Test health script uses Django models.

Instead of doing raw SQL queries, the complete_failures.py script will
use Django models to check the database.

BUG=chromium:249571
DEPLY=none
TEST=Manually ran script.

Change-Id: I89b02bf4ad0c0951ae0e74b91bebdeff99ca0de4
Reviewed-on: https://gerrit.chromium.org/gerrit/58618
Reviewed-by: Dennis Jeffrey <dennisjeffrey@chromium.org>
Commit-Queue: Keyar Hood <keyar@chromium.org>
Tested-by: Keyar Hood <keyar@chromium.org>
2 files changed