The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/34837a8fb19d4c384db7644cd8d3cdc356978d00

commit 34837a8fb19d4c384db7644cd8d3cdc356978d00
Author: bburns <bburns@chromium.org>
Date: Thu May 12 02:10:13 2016

Add some UMA for recent tabs

BUG= 608112 

Review-Url: https://codereview.chromium.org/1967793002
Cr-Commit-Position: refs/heads/master@{#393148}

[modify] https://crrev.com/34837a8fb19d4c384db7644cd8d3cdc356978d00/chrome/browser/android/offline_pages/recent_tab_helper.cc
[modify] https://crrev.com/34837a8fb19d4c384db7644cd8d3cdc356978d00/tools/metrics/histograms/histograms.xml