Add HttpsMonitor

BUG=625226
R=sergeyberezin@chromium.org

Review-Url: https://codereview.chromium.org/2114073002
Cr-Mirrored-From: https://chromium.googlesource.com/infra/infra
Cr-Mirrored-Commit: 2f08d02cb4cb2bff8b9c8885487792cc213675cf
9 files changed