Add information to SSLInfo about CT EV policy compliance

This CL adds a field to SSLInfo to record whether CT policies were
enforced on the connection and details about the connection's compliance
with the CT EV policy.

This will eventually allow UI to explain to domain owners why their
site's EV status might be getting stripped.

This also lays the groundwork for introducing an Expect-CT policy, which
will be applied on all certificates. //net will apply the expect CT
policy and export the result via the new field in SSLInfo, so that code
outside net can send a report if desired.

BUG=568806

Review URL: https://codereview.chromium.org/1652603002

Cr-Commit-Position: refs/heads/master@{#376256}

0 files changed, 0 insertions, 0 deletions