Convert //url to use std::unique_ptr

chrome/browser/interstitials/security_interstitial_page.cc

 // Copyright (c) 2014 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 "chrome/browser/interstitials/security_interstitial_page.h"
 
 #include <utility>
 
 #include "base/i18n/rtl.h"
 #include "base/metrics/histogram.h"
@@ skipping 95 matching lines @@
 void SecurityInterstitialPage::OpenExtendedReportingPrivacyPolicy() {
   controller_->OpenExtendedReportingPrivacyPolicy();
 }
 
 security_interstitials::MetricsHelper*
 SecurityInterstitialPage::metrics_helper() {
   return controller_->metrics_helper();
 }
 
 void SecurityInterstitialPage::set_metrics_helper(
-    scoped_ptr<security_interstitials::MetricsHelper> metrics_helper) {
+    std::unique_ptr<security_interstitials::MetricsHelper> metrics_helper) {
   controller_->set_metrics_helper(std::move(metrics_helper));
 }