Update web-platform-tests/content-security-policy from upstream.
Created attachment 402915 [details] Patch
Created attachment 402919 [details] Patch
Committed r263605: <https://trac.webkit.org/changeset/263605> All reviewed patches have been landed. Closing bug and clearing flags on attachment 402919 [details].
<rdar://problem/64828323>
<rdar://problem/64828327>