The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/17a735374c3ac345a48a45f767983ec6aa8e61a7

commit 17a735374c3ac345a48a45f767983ec6aa8e61a7
Author: Min Qin <qinmin@chromium.org>
Date: Tue Nov 20 02:17:08 2018

Add UMA to track how many downloads are resumed when browser process is not running

Bug: 906287
Change-Id: Ia3b48e13ac444d7569333141c6bba0c7dc14302e
Reviewed-on: https://chromium-review.googlesource.com/c/1340806
Commit-Queue: Min Qin <qinmin@chromium.org>
Reviewed-by: Shakti Sahu <shaktisahu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609563}
[modify] https://crrev.com/17a735374c3ac345a48a45f767983ec6aa8e61a7/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadBroadcastManager.java
[modify] https://crrev.com/17a735374c3ac345a48a45f767983ec6aa8e61a7/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
[modify] https://crrev.com/17a735374c3ac345a48a45f767983ec6aa8e61a7/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationUmaHelper.java
[modify] https://crrev.com/17a735374c3ac345a48a45f767983ec6aa8e61a7/tools/metrics/histograms/enums.xml

Is crbug.com/864625 included in this?