Your flag: enable-async-dns is expiring in M84

[sriniv...@google.com]

Hi,

Your flag: enable-async-dns expired in M81

In M84 we will begin hiding from the Chrome UI (and eventually removing) flags that are marked as expired in flag-metadata.json

This is in accordance with the process documented in //docs/flag_expiry.md . You are receiving this email because you are listed as the owner of a flag that will begin expiring in M84, or because you are a PM who might need visibility into this process.In M84, we will hide flags that expired as of M84 or earlier from chrome://flags. From this point onward, every subsequent release will hide flags that expired as of that release.

What you need to do for M84 (before the branch date May 14 2020):

1. Look at the list of flags marked as expiring in M84 or earlier. The authoritative source for this list is the list_flags.py tool

tools/flags/list_flags.py --expired-by 84

The current list of expiring flags (as of @r763337) is captured in this document

2. If you see a flag listed as expiring that you want to keep, create a CL updating //chrome/browser/flag-metadata.json with an appropriate new expiration milestone. If you do this before the M84 branch you're all set; if you do it after the M84 branch you'll need to merge that CL to the M84 branch as well.

Flags expiring in M84 as of @r763337

Thanks,

Srinivas

[Eric Orth]

As discussed in a previous thread in January, the plan is to let this flag expire.  Its only effect is to allow disabling the built-in Classic DNS resolver on Android, which with or without the flag, is enabled by default on Android, Mac, and ChromeOS.  No specific need to keep this particular flag has been identified, as it appears to have only ever been used as a workaround for since-fixed bugs or erroneously referenced for non-relevant issues or behaviors.

[David Benjamin]

Should we go ahead and delete the flag then?

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[Eric Orth]

I'm a little surprised the expiration warning email didn't include deleting anything you don't want to keep in the "What you need to do" instructions.  But since it doesn't, I'm inclined to leave it there a little bit longer just to make sure I don't do anything to disrupt this new flag expiration plan that they're working on.