If this lands before M59 is released to Beta, then a merge might still be plausible.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/79eaaf7eefb10a3006da5d1a56007e8c6f72ffe1

commit 79eaaf7eefb10a3006da5d1a56007e8c6f72ffe1
Author: mastiz <mastiz@chromium.org>
Date: Wed Apr 26 10:30:26 2017

NTP: Fix TileType metrics on desktop

Follow-up to https://codereview.chromium.org/2796643002 where the
metrics were added but an inconsistency was introduced between the C++
enum and the Javascript counterpart. This caused the wrong buckets being
counted for NewTabPage.TileType (ThumbnailLocal instead Thumbnail;
ThumbnailServer instead of ThumbnailFailed). The affected buckets
were already deprecated (DeprecatedThumbnailLocal and
DeprecatedThumbnailServer) and hence, luckily, there are no conflated
buckets.

Besides, histograms.xml was missing the new suffixes for
NewTabPageIconTypes, used to provide desktop-specific breakdowns for
NewTabPage.MostVisited and NewTabPage.SuggestionsImpression.

BUG= 714095 , 703165 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2832173002
Cr-Commit-Position: refs/heads/master@{#467287}

[modify] https://crrev.com/79eaaf7eefb10a3006da5d1a56007e8c6f72ffe1/chrome/browser/resources/local_ntp/most_visited_single.js
[modify] https://crrev.com/79eaaf7eefb10a3006da5d1a56007e8c6f72ffe1/tools/metrics/histograms/histograms.xml

Two of our team members carefully tested this change which affects UMA-related code only and is rather trivial, so I'm going ahead with a merge request.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ccbb674bcfe3f1f1395235edd0bb433670a63837

commit ccbb674bcfe3f1f1395235edd0bb433670a63837
Author: Mikel Astiz <mastiz@chromium.org>
Date: Thu Apr 27 08:40:54 2017

NTP: Fix TileType metrics on desktop

Follow-up to https://codereview.chromium.org/2796643002 where the
metrics were added but an inconsistency was introduced between the C++
enum and the Javascript counterpart. This caused the wrong buckets being
counted for NewTabPage.TileType (ThumbnailLocal instead Thumbnail;
ThumbnailServer instead of ThumbnailFailed). The affected buckets
were already deprecated (DeprecatedThumbnailLocal and
DeprecatedThumbnailServer) and hence, luckily, there are no conflated
buckets.

Besides, histograms.xml was missing the new suffixes for
NewTabPageIconTypes, used to provide desktop-specific breakdowns for
NewTabPage.MostVisited and NewTabPage.SuggestionsImpression.

BUG= 714095 , 703165 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2832173002
Cr-Commit-Position: refs/heads/master@{#467287}
(cherry picked from commit 79eaaf7eefb10a3006da5d1a56007e8c6f72ffe1)

Review-Url: https://codereview.chromium.org/2845863003 .
Cr-Commit-Position: refs/branch-heads/3071@{#261}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}

[modify] https://crrev.com/ccbb674bcfe3f1f1395235edd0bb433670a63837/chrome/browser/resources/local_ntp/most_visited_single.js
[modify] https://crrev.com/ccbb674bcfe3f1f1395235edd0bb433670a63837/tools/metrics/histograms/histograms.xml

Your change meets the bar and is auto-approved for M59. Please go ahead and merge the CL to branch 3071 manually. Please contact milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), gkihumba@(ChromeOS), Abdul Syed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

This has already been merged, so removing the merge-approved label.

Thanks marc. Marking this as fixed although 59.0.3071.30 or above is not yet on beta.