The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/caa3c1cbea3a8de6603ad2f1e59d14224f4167f1

commit caa3c1cbea3a8de6603ad2f1e59d14224f4167f1
Author: jkrcal <jkrcal@chromium.org>
Date: Mon Oct 17 11:16:00 2016

[NTP Snippets] Report the share of the UI lang vs. the top non-UI lang

In requests to content suggestions server, we send the frequency of use
of the UI language and the top non-UI language.

This CL introduces reporting of the ratio of these two frequencies.
This allows to see how often (and how much) the UI language is
inappropriate.

BUG= 656011 

Review-Url: https://codereview.chromium.org/2419013003
Cr-Commit-Position: refs/heads/master@{#425656}

[modify] https://crrev.com/caa3c1cbea3a8de6603ad2f1e59d14224f4167f1/components/ntp_snippets/remote/ntp_snippets_fetcher.cc
[modify] https://crrev.com/caa3c1cbea3a8de6603ad2f1e59d14224f4167f1/tools/metrics/histograms/histograms.xml

is this done?

Yup, should be done with the above CL.

Yep, done.