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

chrome/browser/sync_file_system/drive_backend/leveldb_wrapper.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_LEVELDB_WRAPPER_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LEVELDB_WRAPPER_H_
 
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "third_party/leveldatabase/src/include/leveldb/slice.h"
 
 namespace leveldb {
 class DB;
 class Iterator;
 class Slice;
 class Status;
 class WriteBatch;
 }
 
@@ skipping 35 matching lines @@
     void Next();
     void Delete();
     leveldb::Slice key();
     leveldb::Slice value();
 
    private:
     // Advances internal iterators to be valid.
     void AdvanceIterators();
 
     LevelDBWrapper* db_;  // do not own
-    scoped_ptr<leveldb::Iterator> db_iterator_;
+    std::unique_ptr<leveldb::Iterator> db_iterator_;
     PendingOperationMap::iterator map_iterator_;
 
     DISALLOW_COPY_AND_ASSIGN(Iterator);
   };
 
-  explicit LevelDBWrapper(scoped_ptr<leveldb::DB> db);
+  explicit LevelDBWrapper(std::unique_ptr<leveldb::DB> db);
   ~LevelDBWrapper();
 
   // Wrapping methods of leveldb::WriteBatch
   void Put(const std::string& key, const std::string& value);
   void Delete(const std::string& key);
 
   // Wrapping methods of leveldb::DB
   leveldb::Status Get(const std::string& key, std::string* value);
-  scoped_ptr<Iterator> NewIterator();
+  std::unique_ptr<Iterator> NewIterator();
 
   // Commits pending transactions to |db_| and clears cached transactions.
   // Returns true if the commitment succeeds.
   leveldb::Status Commit();
 
   // Clears pending transactions.
   void Clear();
 
   // Returns the number of pending PUT/DELETE operations.
   // Each counter counts operations independently, so operations on a key
   // may be counted more than once.
   int64_t num_puts() { return num_puts_; }
   int64_t num_deletes() { return num_deletes_; }
 
   // TODO(peria): Rename this method to GetLevelDBForTesting, after removing
   // usages of drive_backend::MigrateDatabaseFromVxToVy() under
   // drive_backend_v1/.
   leveldb::DB* GetLevelDB();
 
  private:
-  scoped_ptr<leveldb::DB> db_;
+  std::unique_ptr<leveldb::DB> db_;
 
   PendingOperationMap pending_;
   int64_t num_puts_;
   int64_t num_deletes_;
 
   DISALLOW_COPY_AND_ASSIGN(LevelDBWrapper);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LEVELDB_WRAPPER_H_