Add tests for HistoryDeletionBridge

Bug: 964072
Change-Id: I39cb3257e8293838a14fdcea398e53e776fc47e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1617918
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Brandon Wylie <wylieb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661443}
3 files changed