IndexedDB: Sprinkle DISALLOW_COPY_AND_ASSIGN where appropriate

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 <set>
 #include <string>
@@ skipping 62 matching lines @@
     virtual leveldb::Status Next() OVERRIDE;
     virtual leveldb::Status Prev() OVERRIDE;
     virtual base::StringPiece Key() const OVERRIDE;
     virtual base::StringPiece Value() const OVERRIDE;
     bool IsDeleted() const;
 
    private:
     explicit DataIterator(LevelDBTransaction* transaction);
     DataType* data_;
     DataType::iterator iterator_;
+
+    DISALLOW_COPY_AND_ASSIGN(DataIterator);
   };
 
   class TransactionIterator : public LevelDBIterator {
    public:
     virtual ~TransactionIterator();
     static scoped_ptr<TransactionIterator> Create(
         scoped_refptr<LevelDBTransaction> transaction);
 
     virtual bool IsValid() const OVERRIDE;
     virtual leveldb::Status SeekToLast() OVERRIDE;
@@ skipping 18 matching lines @@
     mutable scoped_ptr<DataIterator> data_iterator_;
     scoped_ptr<LevelDBIterator> db_iterator_;
     LevelDBIterator* current_;
 
     enum Direction {
       FORWARD,
       REVERSE
     };
     Direction direction_;
     mutable bool data_changed_;
+
+    DISALLOW_COPY_AND_ASSIGN(TransactionIterator);
   };
 
   void 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_;
   std::set<TransactionIterator*> iterators_;
+
+  DISALLOW_COPY_AND_ASSIGN(LevelDBTransaction);
 };
 
 // Reads go straight to the database, ignoring any writes cached in
 // write_batch_, and writes are write-through, without consolidation.
 class LevelDBDirectTransaction {
  public:
   static scoped_ptr<LevelDBDirectTransaction> Create(LevelDBDatabase* db);
 
   ~LevelDBDirectTransaction();
   void Put(const base::StringPiece& key, const std::string* value);
   leveldb::Status Get(const base::StringPiece& key,
                       std::string* value,
                       bool* found);
   void Remove(const base::StringPiece& key);
   leveldb::Status Commit();
 
  private:
   explicit LevelDBDirectTransaction(LevelDBDatabase* db);
 
   LevelDBDatabase* db_;
   scoped_ptr<LevelDBWriteBatch> write_batch_;
   bool finished_;
+
+  DISALLOW_COPY_AND_ASSIGN(LevelDBDirectTransaction);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_TRANSACTION_H_