GitLab

First metric collects stats on bookmark addition
sliced on profile. Second and third metric collects stats
on the count of open tabs during bookmark all tabs, for
regular and incognito users.

Bug: 966747, 1006145
Change-Id: I29add57c472cf5344951b4a91be465872db45485
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1793184
Commit-Queue: Rohit Agarwal <roagarwal@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Ramin Halavati <rhalavati@chromium.org>
Cr-Commit-Position: refs/heads/master@{#699859}