GitLab

Updates the expires_after attribute for 78 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 2020-09-06.

Change-Id: Idee8bde9832388acf36da0314ac1ddaf8676dc71
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2093534Reviewed-by: Brian White <bcwhite@chromium.org>
Commit-Queue: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#748934}