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Update the set of known roots for Windows and Mac

Update the set of known roots for Windows and Mac. This affects the
|is_issued_by_known_roots| check on these platforms, which controls
things such as the enforcement of Baseline Requirements.

BUG=481573
R=davidben@chromium.org

Review URL: https://codereview.chromium.org/1141173003

Cr-Commit-Position: refs/heads/master@{#330868}