Convert //chrome/browser/sync_file_system from scoped_ptr to std::unique_ptr

chrome/browser/sync_file_system/drive_backend/sync_task_token.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_TOKEN_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_TOKEN_H_
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sync_file_system/sync_callbacks.h"
 #include "chrome/browser/sync_file_system/task_logger.h"
 
 namespace sync_file_system {
 namespace drive_backend {
 
 class SyncTaskManager;
 struct TaskBlocker;
 
 // Represents a running sequence of SyncTasks.  Owned by a callback chain that
 // should run exclusively, and held by SyncTaskManager when no task is running.
 class SyncTaskToken {
  public:
   static const int64_t kTestingTaskTokenID;
   static const int64_t kForegroundTaskTokenID;
   static const int64_t kMinimumBackgroundTaskTokenID;
 
-  static scoped_ptr<SyncTaskToken> CreateForTesting(
+  static std::unique_ptr<SyncTaskToken> CreateForTesting(
       const SyncStatusCallback& callback);
-  static scoped_ptr<SyncTaskToken> CreateForForegroundTask(
+  static std::unique_ptr<SyncTaskToken> CreateForForegroundTask(
       const base::WeakPtr<SyncTaskManager>& manager,
       base::SequencedTaskRunner* task_runner);
-  static scoped_ptr<SyncTaskToken> CreateForBackgroundTask(
+  static std::unique_ptr<SyncTaskToken> CreateForBackgroundTask(
       const base::WeakPtr<SyncTaskManager>& manager,
       base::SequencedTaskRunner* task_runner,
       int64_t token_id,
-      scoped_ptr<TaskBlocker> task_blocker);
+      std::unique_ptr<TaskBlocker> task_blocker);
 
   void UpdateTask(const tracked_objects::Location& location,
                   const SyncStatusCallback& callback);
 
   const tracked_objects::Location& location() const { return location_; }
   virtual ~SyncTaskToken();
 
-  static SyncStatusCallback WrapToCallback(scoped_ptr<SyncTaskToken> token);
+  static SyncStatusCallback WrapToCallback(
+      std::unique_ptr<SyncTaskToken> token);
 
   SyncTaskManager* manager() { return manager_.get(); }
 
   const SyncStatusCallback& callback() const { return callback_; }
   void clear_callback() { callback_.Reset(); }
 
-  void set_task_blocker(scoped_ptr<TaskBlocker> task_blocker);
+  void set_task_blocker(std::unique_ptr<TaskBlocker> task_blocker);
   const TaskBlocker* task_blocker() const;
   void clear_task_blocker();
 
   int64_t token_id() const { return token_id_; }
 
   void InitializeTaskLog(const std::string& task_description);
   void FinalizeTaskLog(const std::string& result_description);
   void RecordLog(const std::string& message);
 
   bool has_task_log() const { return !!task_log_; }
-  void SetTaskLog(scoped_ptr<TaskLogger::TaskLog> task_log);
-  scoped_ptr<TaskLogger::TaskLog> PassTaskLog();
+  void SetTaskLog(std::unique_ptr<TaskLogger::TaskLog> task_log);
+  std::unique_ptr<TaskLogger::TaskLog> PassTaskLog();
 
  private:
   SyncTaskToken(const base::WeakPtr<SyncTaskManager>& manager,
                 const scoped_refptr<base::SequencedTaskRunner>& task_runner,
                 int64_t token_id,
-                scoped_ptr<TaskBlocker> task_blocker,
+                std::unique_ptr<TaskBlocker> task_blocker,
                 const SyncStatusCallback& callback);
 
   base::WeakPtr<SyncTaskManager> manager_;
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   tracked_objects::Location location_;
   int64_t token_id_;
   SyncStatusCallback callback_;
 
-  scoped_ptr<TaskLogger::TaskLog> task_log_;
-  scoped_ptr<TaskBlocker> task_blocker_;
+  std::unique_ptr<TaskLogger::TaskLog> task_log_;
+  std::unique_ptr<TaskBlocker> task_blocker_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncTaskToken);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_TOKEN_H_