GitLab

Delay expiry of frequently used histograms.

Updates the expires_after attribute for 44 histograms that show
frequent access in the past 90 days.  These are the 90% most
frequently used histograms over that time that do not already have a date later
than or within 60 days of 2020-09-13.

TBR=chrome-metrics-team@google.com

Change-Id: Ibc156c1e8be51e13a027853fe7bf645cc36b1305
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2106017
Commit-Queue: Brian White <bcwhite@chromium.org>
Reviewed-by: Chrome Metrics Logs <chrome-metrics-team+robot@google.com>
Cr-Commit-Position: refs/heads/master@{#751115}