Fix webui cert viewer showing wrong cert chain on NSS and no chain on OpenSSL.
The webui cert viewer was still using x509_certificate_model::GetCertChainFromCert instead of X509Certificate::GetIntermediateCertificates. This was fixed in the gtk cert viewer in r135231, but the webui cert viewer was missed. (x509_certificate_model::GetCertChainFromCert was not implemented on OpenSSL, and on NSS the chain it returned may differ from the the chain that was actually used.)
BUG=77757,338887
Review URL: https://codereview.chromium.org/
376753002
Cr-Commit-Position: refs/heads/master@{#289994}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289994 0039d316-1c4b-4281-b951-d872f2087c98