IndexedDB: WrapUnique(new T(args..)) -> MakeUnique<T>(args...)

content/browser/indexed_db/leveldb/leveldb_transaction.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_TRANSACTION_H_
 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_TRANSACTION_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 52 matching lines @@
         : comparator_(comparator) {}
     bool operator()(const base::StringPiece& a,
                     const base::StringPiece& b) const {
       return comparator_->Compare(a, b) < 0;
     }
 
    private:
     const LevelDBComparator* comparator_;
   };
 
-  typedef std::map<base::StringPiece, Record*, Comparator> DataType;
+  typedef std::map<base::StringPiece, std::unique_ptr<Record>, Comparator>
+      DataType;
 
   class DataIterator : public LevelDBIterator {
    public:
     static std::unique_ptr<DataIterator> Create(
         LevelDBTransaction* transaction);
     ~DataIterator() override;
 
     bool IsValid() const override;
     leveldb::Status SeekToLast() override;
     leveldb::Status Seek(const base::StringPiece& slice) override;
@@ skipping 43 matching lines @@
     std::unique_ptr<LevelDBIterator> db_iterator_;
     LevelDBIterator* current_;
 
     Direction direction_;
     mutable bool data_changed_;
 
     DISALLOW_COPY_AND_ASSIGN(TransactionIterator);
   };
   // Returns true if the key was originally marked deleted, false otherwise.
   bool Set(const base::StringPiece& key, std::string* value, bool deleted);
-  void Clear();
   void RegisterIterator(TransactionIterator* iterator);
   void UnregisterIterator(TransactionIterator* iterator);
   void NotifyIterators();
 
   LevelDBDatabase* db_;
   const LevelDBSnapshot snapshot_;
   const LevelDBComparator* comparator_;
   Comparator data_comparator_;
   DataType data_;
   bool finished_;
@@ skipping 22 matching lines @@
   LevelDBDatabase* db_;
   std::unique_ptr<LevelDBWriteBatch> write_batch_;
   bool finished_;
 
   DISALLOW_COPY_AND_ASSIGN(LevelDBDirectTransaction);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_TRANSACTION_H_