Implementing support for 'Cross-Origin-Resource-Policy' response header.

See also
https://fetch.spec.whatwg.org/#cross-origin-resource-policy-header

Bug: 853723
Change-Id: I1bafc0c75c84dc0fff36fcf92fab34ea4206d689
Reviewed-on: https://chromium-review.googlesource.com/c/1416813
Commit-Queue: Ɓukasz Anforowicz <lukasza@chromium.org>
Reviewed-by: Charlie Reis <creis@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625676}
35 files changed