Convert //ios from scoped_ptr to std::unique_ptr.

ios/chrome/browser/safe_browsing/safe_browsing_service.cc

 // Copyright 2015 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/safe_browsing/safe_browsing_service.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 72 matching lines @@
   void ServiceShuttingDown();
 
  protected:
   ~SafeBrowsingURLRequestContextGetter() override;
 
  private:
   bool shut_down_;
 
   scoped_refptr<net::URLRequestContextGetter> system_context_getter_;
 
-  scoped_ptr<net::CookieStore> safe_browsing_cookie_store_;
+  std::unique_ptr<net::CookieStore> safe_browsing_cookie_store_;
 
-  scoped_ptr<net::URLRequestContext> safe_browsing_request_context_;
+  std::unique_ptr<net::URLRequestContext> safe_browsing_request_context_;
 
   scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
 };
 
 SafeBrowsingURLRequestContextGetter::SafeBrowsingURLRequestContextGetter(
     scoped_refptr<net::URLRequestContextGetter> system_context_getter)
     : shut_down_(false),
       system_context_getter_(system_context_getter),
       network_task_runner_(
           web::WebThread::GetTaskRunnerForThread(web::WebThread::IO)) {}
@@ skipping 274 matching lines @@
 void SafeBrowsingService::RemovePrefService(PrefService* pref_service) {
   if (prefs_map_.find(pref_service) != prefs_map_.end()) {
     delete prefs_map_[pref_service];
     prefs_map_.erase(pref_service);
     RefreshState();
   } else {
     NOTREACHED();
   }
 }
 
-scoped_ptr<SafeBrowsingService::StateSubscription>
+std::unique_ptr<SafeBrowsingService::StateSubscription>
 SafeBrowsingService::RegisterStateCallback(
     const base::Callback<void(void)>& callback) {
   DCHECK_CURRENTLY_ON(web::WebThread::UI);
   return state_callback_list_.Add(callback);
 }
 
 void SafeBrowsingService::RefreshState() {
   DCHECK_CURRENTLY_ON(web::WebThread::UI);
   // Check if any browser state requires the service to be active.
   bool enable = false;
@@ skipping 25 matching lines @@
 }
 
 void SafeBrowsingService::OnSendDownloadRecoveryReport(
     const std::string& report) {
   DCHECK_CURRENTLY_ON(web::WebThread::IO);
   if (ping_manager())
     ping_manager()->ReportThreatDetails(report);
 }
 
 }  // namespace safe_browsing