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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 class HttpTransactionDelegate;
     18 
     19 // An interface to a class that can create HttpTransaction objects.
     20 class NET_EXPORT HttpTransactionFactory {
     21  public:
     22   virtual ~HttpTransactionFactory() {}
     23 
     24   // Creates a HttpTransaction object. On success, saves the new
     25   // transaction to |*trans| and returns OK.
     26   virtual int CreateTransaction(RequestPriority priority,
     27                                 scoped_ptr<HttpTransaction>* trans,
     28                                 HttpTransactionDelegate* delegate) = 0;
     29 
     30   // Returns the associated cache if any (may be NULL).
     31   virtual HttpCache* GetCache() = 0;
     32 
     33   // Returns the associated HttpNetworkSession used by new transactions.
     34   virtual HttpNetworkSession* GetSession() = 0;
     35 };
     36 
     37 }  // namespace net
     38 
     39 #endif  // NET_HTTP_HTTP_TRANSACTION_FACTORY_H__
     40