Add the ability for DevTools to wrap network transactions.

chrome/browser/net/network_transaction_factory.cc

+// 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.
+
+#include "chrome/browser/net/network_transaction_factory.h"
+
+#include "chrome/browser/net/network_controller.h"
+#include "chrome/browser/net/network_transaction.h"
+#include "net/base/request_priority.h"
+#include "net/http/http_network_layer.h"
+#include "net/http/http_network_session.h"
+#include "net/http/http_network_transaction.h"
+
+NetworkTransactionFactory::NetworkTransactionFactory(
+    NetworkController* controller,
+    net::HttpNetworkSession* session)
+    : controller_(controller),
+      network_layer_(new net::HttpNetworkLayer(session)) {
+}
+
+NetworkTransactionFactory::~NetworkTransactionFactory() {
+}
+
+int NetworkTransactionFactory::CreateTransaction(
+    net::RequestPriority priority,
+    scoped_ptr<net::HttpTransaction>* trans) {
+  scoped_ptr<net::HttpTransaction> network_transaction;
+  int rv = network_layer_->CreateTransaction(priority, &network_transaction);
+  if (rv != net::OK) {
+    return rv;
+  }
+  trans->reset(new NetworkTransaction(controller_, network_transaction));
+  return net::OK;
+}
+
+net::HttpCache* NetworkTransactionFactory::GetCache() {
+  return network_layer_->GetCache();
+}
+
+net::HttpNetworkSession* NetworkTransactionFactory::GetSession() {
+  return network_layer_->GetSession();
+}