[ObjC ARC] Converts ios/chrome/browser/ssl:ssl to ARC.Automatically generated ARCMigrate commitN…

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 "components/strings/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"
 #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"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 using security_interstitials::SSLErrorUI;
 
 namespace {
 // Events for UMA. Do not reorder or change!
 enum SSLExpirationAndDecision {
   EXPIRED_AND_PROCEED,
   EXPIRED_AND_DO_NOT_PROCEED,
   NOT_EXPIRED_AND_PROCEED,
   NOT_EXPIRED_AND_DO_NOT_PROCEED,
   END_OF_SSL_EXPIRATION_AND_DECISION,
@@ skipping 155 matching lines @@
 
   callback_.Run(false);
   callback_.Reset();
 }
 
 // static
 bool IOSSSLBlockingPage::IsOverridable(int options_mask) {
   return (options_mask & SSLErrorUI::SOFT_OVERRIDE_ENABLED) &&
          !(options_mask & SSLErrorUI::STRICT_ENFORCEMENT);
 }