Stop using CertStore which is not compatible with PlzNavigate.

ios/chrome/browser/ssl/ios_ssl_blocking_page.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ios/chrome/browser/ssl/ios_ssl_blocking_page.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/security_interstitials/core/metrics_helper.h"
 #include "components/security_interstitials/core/ssl_error_ui.h"
 #include "grit/components_strings.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/interstitials/ios_chrome_controller_client.h"
 #include "ios/chrome/browser/interstitials/ios_chrome_metrics_helper.h"
 #include "ios/chrome/grit/ios_strings.h"
 #include "ios/public/provider/chrome/browser/browser_constants.h"
 #include "ios/web/public/cert_store.h"

[Eugene But (OOO till 7-30), 2016/09/08 16:57:46]

ditto

 #import "ios/web/public/navigation_item.h"
 #include "ios/web/public/ssl_status.h"
 #include "ios/web/public/web_state/web_state.h"
 #include "net/base/net_errors.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
 using security_interstitials::SSLErrorUI;
 
 namespace {
@@ skipping 156 matching lines @@
 }
 
 void IOSSSLBlockingPage::OverrideItem(web::NavigationItem* item) {
   item->SetTitle(l10n_util::GetStringUTF16(IDS_SSL_V2_TITLE));
 
   item->GetSSL().security_style = web::SECURITY_STYLE_AUTHENTICATION_BROKEN;
   item->GetSSL().cert_status = ssl_info_.cert_status;
   // On iOS cert may be null when it is not provided by API callback or can not
   // be parsed.
   if (ssl_info_.cert) {
-    item->GetSSL().cert_id = web::CertStore::GetInstance()->StoreCert(
-        ssl_info_.cert.get(), web_state()->GetCertGroupId());
+    item->GetSSL().certificate = ssl_info_.cert;
   }
 }
 
 void IOSSSLBlockingPage::NotifyDenyCertificate() {
   // It's possible that callback_ may not exist if the user clicks "Proceed"
   // followed by pressing the back button before the interstitial is hidden.
   // In that case the certificate will still be treated as allowed.
   if (callback_.is_null())
     return;
 
   callback_.Run(false);
   callback_.Reset();
 }
 
 // static
 bool IOSSSLBlockingPage::IsOverridable(int options_mask) {
   const bool is_overridable =
       (options_mask & SSLErrorUI::SOFT_OVERRIDE_ENABLED) &&
       !(options_mask & SSLErrorUI::STRICT_ENFORCEMENT);
   return is_overridable;
 }