Log a deprecation warning for HTTP-Based Public Key Pinning.

When we see the header, print a warning to the console.

Adapted from a suggestion from elawrence@.

Bug: 779166
Change-Id: Id68495a37f43436cd51833391dbf140d5eb9aef3
Reviewed-on: https://chromium-review.googlesource.com/1006194
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Eric Lawrence <elawrence@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550417}
1 file changed