Actually it's a bit more subtle, we need DRYRUN or ENABLED as well as a valid Async filter, which isn't created with disable_ruleset_rules.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/655b3cccf128cb8ee6f000a871ff0726b6134ca9

commit 655b3cccf128cb8ee6f000a871ff0726b6134ca9
Author: Charles Harrison <csharrison@chromium.org>
Date: Fri Oct 20 19:45:05 2017

[subresource_filter] Remove SubresourceFilter.PageLoad.BlockedPopups

This metric is broken, and we are moving to a new system for blocking
popups anyway.

The new metric will be landed here:
https://chromium-review.googlesource.com/c/chromium/src/+/726545

Bug:  772946 
Change-Id: Ib6ce9d316f7188be13a53988e06623ee93065df3
Reviewed-on: https://chromium-review.googlesource.com/728953
Reviewed-by: Shivani Sharma <shivanisha@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Charlie Harrison <csharrison@chromium.org>
Cr-Commit-Position: refs/heads/master@{#510525}
[modify] https://crrev.com/655b3cccf128cb8ee6f000a871ff0726b6134ca9/chrome/browser/subresource_filter/subresource_filter_popup_browsertest.cc
[modify] https://crrev.com/655b3cccf128cb8ee6f000a871ff0726b6134ca9/components/subresource_filter/content/browser/content_subresource_filter_driver_factory.cc
[modify] https://crrev.com/655b3cccf128cb8ee6f000a871ff0726b6134ca9/components/subresource_filter/content/browser/page_load_statistics.cc
[modify] https://crrev.com/655b3cccf128cb8ee6f000a871ff0726b6134ca9/components/subresource_filter/content/browser/page_load_statistics.h
[modify] https://crrev.com/655b3cccf128cb8ee6f000a871ff0726b6134ca9/tools/metrics/histograms/histograms.xml

WontFix (obsolete)