The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/43fc206f86628011113b4723b38f206d1690842d

commit 43fc206f86628011113b4723b38f206d1690842d
Author: Michael Anthony Knyszek <mknyszek@google.com>
Date: Wed Nov 01 01:31:10 2017

[buildbucket] Add project to Build message.

This change not only adds project to the Build message, but also
propagates the project name from the API level to the rest of the
backend. This is to prepare for bucket names to be contained within
a project's namespace.

Bug:  776300 
Change-Id: Ia968a0edb669ac5e3be44351d12552c15238d872
Reviewed-on: https://chromium-review.googlesource.com/743806
Commit-Queue: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>

[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/api_common.py
[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/model.py
[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/test/api_test.py
[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/service.py
[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/api.py
[modify] https://crrev.com/43fc206f86628011113b4723b38f206d1690842d/appengine/cr-buildbucket/test/service_test.py

the "luci_project" piece of this bug is fixed by #2