Ship the 'unsafe-dynamic' CSP source expression.

Spec: https://lists.w3.org/Archives/Public/public-webappsec/2016Apr/0025.html

Intent to Ship: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/g3qEQkTv5dU

BUG=589380
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1893293005

Cr-Commit-Position: refs/heads/master@{#388193}
2 files changed