Oh dear, haven't been pushing though releases for a while.
Is there an equivalent git url now that triggers release builds?
This was being used to ensure we got nacl sdk's of the same vintage as chrome builds.

The buildspecs are now in git: https://chrome-internal.googlesource.com/chrome/tools/buildspec/+/master/build/chrome-official/

We don't expose that subdirectory directly. Based on the other official masters, it looks like what you want is:

import buildspec_utils
poller = buildspec_utils.BuildspecPoller(['build/chrome-official'], svn_mode=False)
c['change_source'] = [poller]

This seems like it should be pretty straightforward -- the only instance of the SvnPollerWithComparator that I see anymore is in one master, and I don't see how it could possibly be useful anymore, so:

https://chrome-internal-review.googlesource.com/c/313978/
https://chromium-review.googlesource.com/c/423168/

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chrome/tools/build/+/70560770a9b81c36994293a799b18a0e2a092c12

commit 70560770a9b81c36994293a799b18a0e2a092c12
Author: Aaron Gable <agable@chromium.org>
Date: Wed Dec 21 23:18:13 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build.git/+/3eae1165714f72471234302b52f6d12ecd3fe2df

commit 3eae1165714f72471234302b52f6d12ecd3fe2df
Author: Aaron Gable <agable@chromium.org>
Date: Wed Dec 21 23:19:54 2016

Remove unused SvnPollerWithComparator

BUG= 640211 

Change-Id: Ie41e997a83e4454a36d35b2272e1d6c483b22d76
Reviewed-on: https://chromium-review.googlesource.com/423168
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>

[delete] https://crrev.com/be346aa5e79294bea2a7cba5ace2692b4ea59846/scripts/master/svn_poller_with_comparator.py