Rename SecurityLevels to be more clear

SECURITY_ERROR -> DANGEROUS
SECURITY_POLICY_WARNING -> SECURE_WITH_POLICY_INSTALLED_CERT

Note that SECURITY_WARNING is being removed in a separate CL, so I
left it alone.

BUG=

Review-Url: https://codereview.chromium.org/2363493002
Cr-Commit-Position: refs/heads/master@{#421048}
diff --git a/chrome/browser/ui/website_settings/website_settings.cc b/chrome/browser/ui/website_settings/website_settings.cc
index f0eb94a..f451949a 100644
--- a/chrome/browser/ui/website_settings/website_settings.cc
+++ b/chrome/browser/ui/website_settings/website_settings.cc
@@ -433,7 +433,7 @@
        net::IsCertStatusMinorError(security_info.cert_status))) {
     // There are no major errors. Check for minor errors.
     if (security_info.security_level ==
-        SecurityStateModel::SECURITY_POLICY_WARNING) {
+        SecurityStateModel::SECURE_WITH_POLICY_INSTALLED_CERT) {
       site_identity_status_ = SITE_IDENTITY_STATUS_ADMIN_PROVIDED_CERT;
       site_identity_details_ = l10n_util::GetStringFUTF16(
           IDS_CERT_POLICY_PROVIDED_CERT_MESSAGE, UTF8ToUTF16(url.host()));