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

ios/chrome/browser/ui/webui/sync_internals/sync_internals_message_handler.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.
 
 #ifndef IOS_CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_SYNC_INTERNALS_MESSAGE_HANDLER_H_
 #define IOS_CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_SYNC_INTERNALS_MESSAGE_HANDLER_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 34 matching lines @@
   void HandleRequestListOfTypes(const base::ListValue* args);
 
   // Handler for getAllNodes message.  Needs a |request_id| argument.
   void HandleGetAllNodes(const base::ListValue* args);
 
   // syncer::JsEventHandler implementation.
   void HandleJsEvent(const std::string& name,
                      const syncer::JsEventDetails& details) override;
 
   // Callback used in GetAllNodes.
-  void OnReceivedAllNodes(int request_id, scoped_ptr<base::ListValue> nodes);
+  void OnReceivedAllNodes(int request_id,
+                          std::unique_ptr<base::ListValue> nodes);
 
   // sync_driver::SyncServiceObserver implementation.
   void OnStateChanged() override;
 
   // ProtocolEventObserver implementation.
   void OnProtocolEvent(const syncer::ProtocolEvent& e) override;
 
   // TypeDebugInfoObserver implementation.
   void OnCommitCountersUpdated(syncer::ModelType type,
                                const syncer::CommitCounters& counters) override;
   void OnUpdateCountersUpdated(syncer::ModelType type,
                                const syncer::UpdateCounters& counters) override;
   void OnStatusCountersUpdated(syncer::ModelType type,
                                const syncer::StatusCounters& counters) override;
 
   // Helper to emit counter updates.
   //
   // Used in implementation of On*CounterUpdated methods.  Emits the given
   // dictionary value with additional data to specify the model type and
   // counter type.
   void EmitCounterUpdate(syncer::ModelType type,
                          const std::string& counter_type,
-                         scoped_ptr<base::DictionaryValue> value);
+                         std::unique_ptr<base::DictionaryValue> value);
 
  private:
   // Fetches updated aboutInfo and sends it to the page in the form of an
   // onAboutInfoUpdated event.
   void SendAboutInfo();
 
   sync_driver::SyncService* GetSyncService();
 
   base::WeakPtr<syncer::JsController> js_controller_;
 
   // A flag used to prevent double-registration with ProfileSyncService.
   bool is_registered_;
 
   // A flag used to prevent double-registration as TypeDebugInfoObserver with
   // ProfileSyncService.
   bool is_registered_for_counters_;
 
   base::WeakPtrFactory<SyncInternalsMessageHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncInternalsMessageHandler);
 };
 
 #endif  // IOS_CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_SYNC_INTERNALS_MESSAGE_HANDLER_H_