This zip is still archived with the official builds, but that handling dates back to at least https://chromium.googlesource.com/chromium/tools/build/+/c6b00faf9c21f89cf774b31c7b4eaf19373af77c (and now via FILES.cfg), but I have no idea if it's actually used for anything.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1d5b7069c8376c83fb8b3d35b0df49979592bb2a

commit 1d5b7069c8376c83fb8b3d35b0df49979592bb2a
Author: dpranke <dpranke@chromium.org>
Date: Mon Jun 20 21:09:04 2016

Flip Google Chrome Win builder to GN.

And add the missing //:chrome_official_builder_no_unittests target
that caused the prior flip to be reverted :).

R=brettw@chromium.org
BUG= 605318 ,  621575 

Review-Url: https://codereview.chromium.org/2082683003
Cr-Commit-Position: refs/heads/master@{#400780}

[modify] https://crrev.com/1d5b7069c8376c83fb8b3d35b0df49979592bb2a/BUILD.gn
[modify] https://crrev.com/1d5b7069c8376c83fb8b3d35b0df49979592bb2a/tools/mb/mb_config.pyl

@zmin - I'm assuming we need this to be done as part of shipping GN, which we're targeting for M-53. Please let me know if you think you won't be able to get this done by then.

This is file is certainly needed. It is being uploaded for each new release of Chrome here https://www.chromium.org/administrators/policy-templates for admins to be able to update their Windows GPO, Mac PLists or on linux as a template for the policy files. 

There is an automated process which transports this file for each release but I will have to dig up who has done this. However if we can port the creation of this file 100% to GN than this process whatever it is should happily continue to work.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6211e7d67d57db54d8c5b9a56b9be6de99618ef4

commit 6211e7d67d57db54d8c5b9a56b9be6de99618ef4
Author: zmin <zmin@chromium.org>
Date: Thu Jun 23 01:19:29 2016

Adds gn config for policy_templates.zip

BUG= 621575 

Review-Url: https://codereview.chromium.org/2083903005
Cr-Commit-Position: refs/heads/master@{#401497}

[modify] https://crrev.com/6211e7d67d57db54d8c5b9a56b9be6de99618ef4/BUILD.gn
[modify] https://crrev.com/6211e7d67d57db54d8c5b9a56b9be6de99618ef4/components/policy/BUILD.gn