The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/25f0fa80874f1f91402aa3de3fbb9738d03e05e6

commit 25f0fa80874f1f91402aa3de3fbb9738d03e05e6
Author: treib <treib@chromium.org>
Date: Tue Mar 21 22:20:00 2017

[Doodle] Track the time to took for the Doodle to show up on the NTP

We'll use this to compare the old components/search_provider_logos with
the new components/doodle, to make sure it doesn't regress.

While we're here, also update/clarify some of the existing
NewTabPage.Logo* histogram descriptions.

BUG= 703227 

Review-Url: https://codereview.chromium.org/2763703002
Cr-Commit-Position: refs/heads/master@{#458580}

[modify] https://crrev.com/25f0fa80874f1f91402aa3de3fbb9738d03e05e6/chrome/android/java/src/org/chromium/chrome/browser/ntp/LogoDelegateImpl.java
[modify] https://crrev.com/25f0fa80874f1f91402aa3de3fbb9738d03e05e6/tools/metrics/histograms/histograms.xml

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/85614657faa27811620cfe097a34d38a1c7c2276

commit 85614657faa27811620cfe097a34d38a1c7c2276
Author: treib <treib@chromium.org>
Date: Wed Mar 22 10:32:39 2017

[Doodle] Add UMA for doodle image downloads

Split by whether the data came from the HTTP cache.

BUG= 703227 

Review-Url: https://codereview.chromium.org/2762853003
Cr-Commit-Position: refs/heads/master@{#458709}

[modify] https://crrev.com/85614657faa27811620cfe097a34d38a1c7c2276/chrome/browser/android/logo_bridge.cc
[modify] https://crrev.com/85614657faa27811620cfe097a34d38a1c7c2276/components/search_provider_logos/logo_tracker.cc
[modify] https://crrev.com/85614657faa27811620cfe097a34d38a1c7c2276/components/search_provider_logos/logo_tracker.h
[modify] https://crrev.com/85614657faa27811620cfe097a34d38a1c7c2276/tools/metrics/histograms/histograms.xml

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0

commit 1732bbc476bb0c1a82bd79fbaa82250a2276d7d0
Author: treib <treib@chromium.org>
Date: Thu Mar 23 09:32:51 2017

[Doodle] Record UMA for DoodleConfig download outcome and time

BUG= 703227 

Review-Url: https://codereview.chromium.org/2760253003
Cr-Commit-Position: refs/heads/master@{#459031}

[modify] https://crrev.com/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0/chrome/browser/doodle/doodle_service_factory.cc
[modify] https://crrev.com/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0/components/doodle/doodle_service.cc
[modify] https://crrev.com/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0/components/doodle/doodle_service.h
[modify] https://crrev.com/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0/components/doodle/doodle_service_unittest.cc
[modify] https://crrev.com/1732bbc476bb0c1a82bd79fbaa82250a2276d7d0/tools/metrics/histograms/histograms.xml