GitLab

Added skeleton framework for AutofillStrikeDatabase.
It will be used to store data about the number of times a user
refuses to save their info.

Bug: 884817

Change-Id: Iaffac0ab45785e4c0ff261ecb9bbde31e270e00a
Reviewed-on: https://chromium-review.googlesource.com/1228774Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Commit-Queue: Anne Lim <annelim@google.com>
Cr-Commit-Position: refs/heads/master@{#592047}