Show the ReusePasswordAccountType field to chrome://safe-browsing

Expose the ReusePasswordAccountType field (reused_password_account_type
and is_account_syncing) in the password reuse pings displayed on
chrome://safe-browsing/#tab-passwordprotection.

Picture: https://screenshot.googleplex.com/8QrHzgJkVVdjqVF

Bug: 1232230

Change-Id: I3dd70da8429fd0b87732ec5b37b801bb848a44f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3068084


Reviewed-by: Xinghui Lu <xinghuilu@chromium.org>
Commit-Queue: Rodney Sampson <rsamp@google.com>
Cr-Commit-Position: refs/heads/master@{#908695}