Turn on dynamic Expect-CT by default

Expect-CT headers are launching in Chrome 61 (approved via blink-dev OWP process
and launch review) so we can enable the Finch feature by default.

Bug: 679012
Change-Id: I1502c18bd1ad6ed218e527f7acd808c14124cc76
Reviewed-on: https://chromium-review.googlesource.com/596407
Commit-Queue: Emily Stark <estark@chromium.org>
Reviewed-by: Matt Mueller <mattm@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#495761}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 41b44be779b6df756738b8cf615e2b417b6ffcdd
1 file changed