Issue 625806 has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b524482740db48f7fba695b70bddec6cb3c204fa

commit b524482740db48f7fba695b70bddec6cb3c204fa
Author: Marc Treib <treib@chromium.org>
Date: Mon Jan 15 12:42:51 2018

Local NTP: Doodle logging via /async/ddllog

Bug: 781309
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: Iac285baf48c04251a749e5ed06201c2e63d568c3
Reviewed-on: https://chromium-review.googlesource.com/753370
Commit-Queue: Marc Treib <treib@chromium.org>
Reviewed-by: Chris Pickel <sfiera@chromium.org>
Cr-Commit-Position: refs/heads/master@{#529258}
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/browser/resources/local_ntp/local_ntp.js
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/browser/search/local_ntp_source.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/browser/ui/search/local_ntp_doodle_browsertest.cc
[add] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/test/data/local_ntp/ddllog-interaction_log_url
[add] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/test/data/local_ntp/ddllog-interaction_log_url.mock-http-headers
[add] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/test/data/local_ntp/ddllog-target_url_params
[add] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/test/data/local_ntp/ddllog-target_url_params.mock-http-headers
[add] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/chrome/test/data/local_ntp/simple.html
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/features.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/features.h
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/google_logo_api.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/google_logo_api_unittest.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/logo_cache.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/logo_cache_unittest.cc
[modify] https://crrev.com/b524482740db48f7fba695b70bddec6cb3c204fa/components/search_provider_logos/logo_common.h

This is done for the desktop local NTP. The remote NTP (if it will continue to exist) as well as mobile are still TBD.

The design for this is finished and approved for all platforms, see go/ntp-doodle-logging and go/ntp-doodle-logging-privacy.
Implementation:
- The desktop local NTP is done.
- The desktop remote NTP is not started. It uses its own endpoint for fetching Doodles, so some extra plumbing will be required to pipe through the [cta_]log_url params. Otherwise this should be a straightforward port of the above CL.
- The Android implementation is started (https://crrev.com/c/870772) but a lot remains to be done. Because it's a native UI, this is a bit more tedious than on desktop.

The Doodles team has been waiting for this for a long time already. Since it looks like the local NTP isn't launching any time soon, it'd be great to get the remote NTP done ASAP. jshneier@ will be able to help with the plumbing.

Hi ramyan!  I hear you're owning this now.  What's the plan for this feature?  We've been working on getting this logging in place for a long time; it's our last major unlogged platform, so we'd really like to see it launched.