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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef NET_HTTP_HTTP_TRANSACTION_FACTORY_H_
      6 #define NET_HTTP_HTTP_TRANSACTION_FACTORY_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "net/base/net_export.h"
     10 #include "net/base/request_priority.h"
     11 
     12 namespace net {
     13 
     14 class HttpCache;
     15 class HttpNetworkSession;
     16 class HttpTransaction;
     17 
     18 // An interface to a class that can create HttpTransaction objects.
     19 class NET_EXPORT HttpTransactionFactory {
     20  public:
     21   virtual ~HttpTransactionFactory() {}
     22 
     23   // Creates a HttpTransaction object. On success, saves the new
     24   // transaction to |*trans| and returns OK.
     25   virtual int CreateTransaction(RequestPriority priority,
     26                                 scoped_ptr<HttpTransaction>* trans) = 0;
     27 
     28   // Returns the associated cache if any (may be NULL).
     29   virtual HttpCache* GetCache() = 0;
     30 
     31   // Returns the associated HttpNetworkSession used by new transactions.
     32   virtual HttpNetworkSession* GetSession() = 0;
     33 };
     34 
     35 }  // namespace net
     36 
     37 #endif  // NET_HTTP_HTTP_TRANSACTION_FACTORY_H_
     38