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This metric is added to record that users come back to app menu and
select a similar menu item in short period (10 seconds) of time.

Bug: 1143780
Change-Id: I5f5522e4b77103d324b6ebe02a2f832d43d81a3a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2508351
Commit-Queue: Gang Wu <gangwu@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823239}