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 311c5bb0fd7a0044b9904580f7ed169cd2aa5ad2..6c491ab68fa645e237d1ff816b3eddc8d265bf1c 100644
--- a/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
+++ b/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
@@ -154,7 +154,7 @@ 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)>());