GitLab

Unrecoverable SSL errors were broken in 	Merge 229993, by the upstream CL:
https://codereview.chromium.org/23965003/.
This fix removes the iOS specific interstitial.mm and uses interstitial_page_impl
instead.
It also adds support for unrecoverable errors, by returning a DENIED judgment
to some errors.

BUG=310607
TEST=Go to https://test-sspev.verisign.com/. Clicking on "Revoked" should trigger an unrecoverable error, clicking on "Expired" should trigger a recoverable error (with a "proceed anyway" button)

Review URL: https://chromereviews.googleplex.com/12347017

Review URL: https://codereview.chromium.org/1469063002

Cr-Commit-Position: refs/heads/master@{#361109}