Make transport security state generator part of the build process.

Rebased reland of https://chromium-review.googlesource.com/c/471529/.

This CL adds a build step to generate transport_security_state_static.h
when required.

Bug:595493

Change-Id: I4ea60b4052700446c0286884566d509b25696ce3
Reviewed-on: https://chromium-review.googlesource.com/484301
Commit-Queue: Martijn Croonen <martijn@martijnc.be>
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Lucas Garron <lgarron@chromium.org>
Cr-Commit-Position: refs/heads/master@{#474379}
4 files changed