Add HasUpiVpaField metric to FormSubmitted UKM

BUG=925157
Screenshot -> https://screenshot.googleplex.com/UGN90fpgXWp

Change-Id: If04be84914125aed5e3e4908e96d092bd173bbfa
Reviewed-on: https://chromium-review.googlesource.com/c/1431474
Reviewed-by: Jared Saul <jsaul@google.com>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#626775}(cherry picked from commit 33e806ee460384290dfd6f81825173680c93cba3)
Reviewed-on: https://chromium-review.googlesource.com/c/1448799
Cr-Commit-Position: refs/branch-heads/3683@{#97}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
5 files changed