Add the ability for DevTools to wrap network transactions.

chrome/browser/net/network_transaction_factory.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_NET_NETWORK_TRANSACTION_FACTORY_H_
+#define CHROME_BROWSER_NET_NETWORK_TRANSACTION_FACTORY_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "net/base/request_priority.h"
+#include "net/http/http_transaction_factory.h"
+
+class NetworkController;
+
+namespace net {
+class HttpCache;
+class HttpNetworkSession;
+class HttpTransaction;
+}  // namespace net
+
+// NetworkTransactionFactory wraps HttpNetworkTransactions.
+class NetworkTransactionFactory: public net::HttpTransactionFactory {
+
+ public:
+  NetworkTransactionFactory(
+      NetworkController* controller,
+      net::HttpNetworkSession* session);
+  virtual ~NetworkTransactionFactory();
+
+  // net::HttpTransactionFactory methods:
+  virtual int CreateTransaction(
+      net::RequestPriority priority,
+      scoped_ptr<net::HttpTransaction>* trans) OVERRIDE;
+  virtual net::HttpCache* GetCache() OVERRIDE;
+  virtual net::HttpNetworkSession* GetSession() OVERRIDE;
+
+ private:
+  NetworkController* controller_;
+  scoped_ptr<net::HttpTransactionFactory> network_layer_;
+
+  DISALLOW_COPY_AND_ASSIGN(NetworkTransactionFactory);
+};
+
+#endif  // CHROME_BROWSER_NET_NETWORK_TRANSACTION_FACTORY_H_