GitLab

This was originally created in Aug 2017 in this CL:
https://chromium-review.googlesource.com/603690

This metric is no longer being used and has already expired
9 months ago.

Per go/histogram-expiry-guidelines:
"If the histogram is not in use now,
but might be useful in the far future, remove it."

Change-Id: I6903617fcfaf8ca3d9c46433386d7ccca508105f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2580697
Auto-Submit: edchin <edchin@chromium.org>
Commit-Queue: Rohit Rao <rohitrao@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835326}