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

ios/chrome/browser/safe_browsing/safe_browsing_service.h

 // 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.
 //
 // The Safe Browsing service is responsible for downloading anti-phishing and
 // anti-malware tables and checking urls against them.
 
 #ifndef IOS_CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 #define IOS_CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/callback_list.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "ios/chrome/browser/safe_browsing/util.h"
 #include "ios/web/public/web_thread.h"
 
 class PrefChangeRegistrar;
 class PrefService;
 class TrackedPreferenceValidationDelegate;
 
 namespace base {
@@ skipping 71 matching lines @@
   // headers (or SB_THREAT_TYPE_SAFE if no threat is indicated).
   SBThreatType CheckResponseFromProxyRequestHeaders(
       scoped_refptr<net::HttpResponseHeaders> headers);
 
   // Type for subscriptions to SafeBrowsing service state.
   typedef base::CallbackList<void(void)>::Subscription StateSubscription;
 
   // Adds a listener for when SafeBrowsing preferences might have changed.
   // To get the current state, the callback should call enabled_by_prefs().
   // Should only be called on the UI thread.
-  scoped_ptr<StateSubscription> RegisterStateCallback(
+  std::unique_ptr<StateSubscription> RegisterStateCallback(
       const base::Callback<void(void)>& callback);
 
   // Sends serialized download recovery report to backend.
   void SendDownloadRecoveryReport(const std::string& report);
 
  protected:
   // Creates the safe browsing service.  Need to initialize before using.
   SafeBrowsingService();
 
   virtual ~SafeBrowsingService();
@@ skipping 84 matching lines @@
   virtual ~SafeBrowsingServiceFactory() {}
   virtual SafeBrowsingService* CreateSafeBrowsingService() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingServiceFactory);
 };
 
 }  // namespace safe_browsing
 
 #endif  // IOS_CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_