[ios] Call SSLStatusUpdated callback when load is failed with SSL error.
[ios] Call SSLStatusUpdated callback when load is failed with SSL error.

Allows moving some Tab code from presentSSLError:forSSLStatus: to
webControllerDidUpdateSSLStatusForCurrentNavigationItem:

Prerequesite for this CL:
https://chromereviews.googleplex.com/426207013

BUG=602298

Review-Url: https://codereview.chromium.org/1984513002
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#394143}

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