Simplify security_interstitials::ControllerClient and other related classes

chrome/browser/ui/webui/interstitials/interstitial_ui.cc

Index: chrome/browser/ui/webui/interstitials/interstitial_ui.cc
diff --git a/chrome/browser/ui/webui/interstitials/interstitial_ui.cc b/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
index f02d0ca87606b2aea8cde6cfe5efeb34e954f98e..f92b1f12c8462a92bd2c46943c1aa2ca9a9a0aa4 100644
--- a/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
+++ b/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
@@ -152,7 +152,7 @@ SSLBlockingPage* CreateSSLBlockingPage(content::WebContents* web_contents) {
     options_mask |= security_interstitials::SSLErrorUI::SOFT_OVERRIDE_ENABLED;
   if (strict_enforcement)
     options_mask |= security_interstitials::SSLErrorUI::STRICT_ENFORCEMENT;
-  return new SSLBlockingPage(
+  return SSLBlockingPage::Create(
       web_contents, cert_error, ssl_info, request_url, options_mask,
       time_triggered_, nullptr,
       base::Callback<void(content::CertificateRequestResultType)>());