The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1ca52852f992b97cf3bfefff7e70a605ed2295bc

commit 1ca52852f992b97cf3bfefff7e70a605ed2295bc
Author: phweiss <phweiss@chromium.org>
Date: Thu Sep 22 13:48:40 2016

Separate ARC++ Provisioning Histogram into managed and unmanaged

Deprecate "Arc.Provisioning.Result" and replace it by
"Arc.Provisioning.Result.Managed" and "Arc.Provisioning.Result.Unmanaged"
for more detailed feedback.

BUG= 647670 
BUG=b/31442315

Review-Url: https://codereview.chromium.org/2339393002
Cr-Commit-Position: refs/heads/master@{#420322}

[modify] https://crrev.com/1ca52852f992b97cf3bfefff7e70a605ed2295bc/chrome/browser/chromeos/arc/arc_auth_service.cc
[modify] https://crrev.com/1ca52852f992b97cf3bfefff7e70a605ed2295bc/chrome/browser/chromeos/arc/arc_optin_uma.cc
[modify] https://crrev.com/1ca52852f992b97cf3bfefff7e70a605ed2295bc/chrome/browser/chromeos/arc/arc_optin_uma.h
[modify] https://crrev.com/1ca52852f992b97cf3bfefff7e70a605ed2295bc/tools/metrics/histograms/histograms.xml

Your change meets the bar and is auto-approved for M54 (branch: 2840)

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

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Merging failed, "Got exception while uploading" was the only error message from git drover. Maybe because I never got around to become full committer? Luis, could you try to run this command?

git drover --branch 2840 --cherry-pick 1ca52852f992b97cf3bfefff7e70a605ed2295bc

Never mind, I did it manually:
https://codereview.chromium.org/2373473003

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ed36c84b926b5cd8aa294a9b662a149b58b89b3b

commit ed36c84b926b5cd8aa294a9b662a149b58b89b3b
Author: phweiss <phweiss@chromium.org>
Date: Tue Sep 27 14:52:47 2016

Separate ARC++ Provisioning Histogram into managed and unmanaged

Deprecate "Arc.Provisioning.Result" and replace it by
"Arc.Provisioning.Result.Managed" and "Arc.Provisioning.Result.Unmanaged"
for more detailed feedback.

BUG= 647670 
BUG=b/31442315
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2339393002
Cr-Commit-Position: refs/heads/master@{#420322}
(cherry picked from commit 1ca52852f992b97cf3bfefff7e70a605ed2295bc)

Review-Url: https://codereview.chromium.org/2373473003
Cr-Commit-Position: refs/branch-heads/2840@{#545}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_auth_service.cc
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_optin_uma.cc
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_optin_uma.h
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/tools/metrics/histograms/histograms.xml

https://uma.googleplex.com/p/chrome/histograms/?endDate=20161017&dayCount=7&histograms=Arc.Provisioning.Result%2CArc.Provisioning.Result.Unmanaged&fixupData=true&showMax=true&filters=channel%2Ceq%2C3%2Cisofficial%2Ceq%2CTrue&implicitFilters=isofficial

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ed36c84b926b5cd8aa294a9b662a149b58b89b3b

commit ed36c84b926b5cd8aa294a9b662a149b58b89b3b
Author: phweiss <phweiss@chromium.org>
Date: Tue Sep 27 14:52:47 2016

Separate ARC++ Provisioning Histogram into managed and unmanaged

Deprecate "Arc.Provisioning.Result" and replace it by
"Arc.Provisioning.Result.Managed" and "Arc.Provisioning.Result.Unmanaged"
for more detailed feedback.

BUG= 647670 
BUG=b/31442315
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2339393002
Cr-Commit-Position: refs/heads/master@{#420322}
(cherry picked from commit 1ca52852f992b97cf3bfefff7e70a605ed2295bc)

Review-Url: https://codereview.chromium.org/2373473003
Cr-Commit-Position: refs/branch-heads/2840@{#545}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_auth_service.cc
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_optin_uma.cc
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/chrome/browser/chromeos/arc/arc_optin_uma.h
[modify] https://crrev.com/ed36c84b926b5cd8aa294a9b662a149b58b89b3b/tools/metrics/histograms/histograms.xml