The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/385e17361005ba7d219e8eaa5c020115845a4ad4

commit 385e17361005ba7d219e8eaa5c020115845a4ad4
Author: Qiang Xu <warx@google.com>
Date: Thu May 24 21:31:24 2018

arc: add arc app shortcuts build menu time metrics

Metrics added: Arc.AppShortcuts.BuildMenuTime in unit of "ms".

Bug:  843676 
Test: chrome://histograms
Change-Id: I89887e965bcd9b6dce943fd54e0c00020ce513e8
Reviewed-on: https://chromium-review.googlesource.com/1069907
Commit-Queue: Qiang Xu <warx@google.com>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561639}
[modify] https://crrev.com/385e17361005ba7d219e8eaa5c020115845a4ad4/chrome/browser/chromeos/arc/app_shortcuts/arc_app_shortcuts_menu_builder.cc
[modify] https://crrev.com/385e17361005ba7d219e8eaa5c020115845a4ad4/chrome/browser/chromeos/arc/app_shortcuts/arc_app_shortcuts_menu_builder.h
[modify] https://crrev.com/385e17361005ba7d219e8eaa5c020115845a4ad4/tools/metrics/histograms/histograms.xml

Metrics for launching app shortcuts is recorded in "Apps.ContextMenuExecuteCommand.FromApp", where 1000-1999 is reserved to log actions on launching android app shortcuts. Probably this bug can be marked as fixed from here, if this is enough.

Alex, is this fixed? Or are there still things that need doing? And if so do you think it could happen this week? Otherwise we should probably move to M-71.

This is done! Thanks