The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bbe9ad733bbdf501cc63db9b624cfed076d33c32

commit bbe9ad733bbdf501cc63db9b624cfed076d33c32
Author: qinmin <qinmin@chromium.org>
Date: Wed Apr 19 00:50:53 2017

Record more download resumption UMAs to analyze the how download is resumed

This CL adds the metrics to study how many resumption is attempted for a download.
This allows us to study the high download interruption counts.
And choose a better throttling strategy.

BUG= 712318 

Review-Url: https://codereview.chromium.org/2820193002
Cr-Commit-Position: refs/heads/master@{#465451}

[modify] https://crrev.com/bbe9ad733bbdf501cc63db9b624cfed076d33c32/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
[modify] https://crrev.com/bbe9ad733bbdf501cc63db9b624cfed076d33c32/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

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a74d0227cdfe9c570717e48439aafb73d42f3635

commit a74d0227cdfe9c570717e48439aafb73d42f3635
Author: Min Qin <qinmin@chromium.org>
Date: Wed Apr 19 16:34:35 2017

Record more download resumption UMAs to analyze the how download is resumed

This CL adds the metrics to study how many resumption is attempted for a download.
This allows us to study the high download interruption counts.
And choose a better throttling strategy.

BUG= 712318 
TBR=dtrainor@chromium.org, isherman@chromium.org

Review-Url: https://codereview.chromium.org/2820193002
Cr-Commit-Position: refs/heads/master@{#465451}
(cherry picked from commit bbe9ad733bbdf501cc63db9b624cfed076d33c32)

Review-Url: https://codereview.chromium.org/2831603003 .
Cr-Commit-Position: refs/branch-heads/3071@{#51}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}

[modify] https://crrev.com/a74d0227cdfe9c570717e48439aafb73d42f3635/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
[modify] https://crrev.com/a74d0227cdfe9c570717e48439aafb73d42f3635/tools/metrics/histograms/histograms.xml