Hello, I also have the same question. And an additional question of how to setup "BuiltInDnsClientEnabled" in Chrome?

Hey Drew, it seems this fell through the cracks.

mgersh: can you help here? I don't understand how kBuiltInDnsClientEnabled (https://cs.chromium.org/chromium/src/chrome/browser/io_thread.cc?rcl=2aea13c48978329e7ee2c768d0fa88a2b5faed3c&l=378) behaves for consumers (seems like it's impacted by field trials, varies by platform, etc).

Chrome's built-in DNS client (as opposed to using the system DNS resolver via getaddrinfo()) is controlled by a couple mechanisms.

It is enabled by default for Mac and ChromeOS here:
https://cs.chromium.org/chromium/src/chrome/common/chrome_features.cc?rcl=dabbfaf85eca64fa2134bb4b1008cf7e55f2453b&l=75

It is enabled by field trial for Android as per Issue 768874.

Hello!
This bug is receiving this notice because there has been no acknowledgment of its existence in quite a bit of time.
- If you are currently working on this bug, please provide an update.
- If you are currently affected by this bug, please update with your current symptoms and relevant logs.

If there has been no updates provided by EOD Wednesday, 12/12/18 (5pm EST), this bug will be archived and can be re-opened at any time deemed necessary.

Thank you!

@tnagel: can you clarify which docs you are talking about?

Assigning to tnagel@ since further action is pending their response.

I'm referring to these docs: http://www.chromium.org/administrators/policy-list-3#BuiltInDnsClientEnabled

https://chromium-review.googlesource.com/c/chromium/src/+/1380575

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/488b7d4f4efddae7c5bb6d4e32e40c47f07515a8

commit 488b7d4f4efddae7c5bb6d4e32e40c47f07515a8
Author: Paul Jensen <pauljensen@chromium.org>
Date: Tue Dec 18 15:16:20 2018

Clarify BuiltInDnsClientEnabled policy default behavior

Bug:  829735 
Change-Id: I696e786550c750b6e17a635b20ddf8dee5bee94c
Reviewed-on: https://chromium-review.googlesource.com/c/1380575
Reviewed-by: Lutz Justen <ljusten@chromium.org>
Commit-Queue: Paul Jensen <pauljensen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#617494}
[modify] https://crrev.com/488b7d4f4efddae7c5bb6d4e32e40c47f07515a8/components/policy/resources/policy_templates.json