Add TransportContext class.

remoting/host/cast_extension_session.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 "remoting/host/cast_extension_session.h"
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/synchronization/waitable_event.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "remoting/host/client_session.h"
 #include "remoting/proto/control.pb.h"
-#include "remoting/protocol/chromium_port_allocator_factory.h"
+#include "remoting/protocol/chromium_port_allocator.h"
 #include "remoting/protocol/client_stub.h"
 #include "remoting/protocol/webrtc_video_capturer_adapter.h"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
 #include "third_party/libjingle/source/talk/app/webrtc/test/fakeconstraints.h"
 #include "third_party/libjingle/source/talk/app/webrtc/videosourceinterface.h"
 
 namespace remoting {
 
 // Used as the type attribute of all Cast protocol::ExtensionMessages.
 const char kExtensionMessageType[] = "cast_message";
@@ skipping 464 matching lines @@
 
   // DTLS-SRTP is the preferred encryption method. If set to kValueFalse, the
   // peer connection uses SDES. Disabling SDES as well will cause the peer
   // connection to fail to connect.
   // Note: For protection and unprotection of SRTP packets, the libjingle
   // ENABLE_EXTERNAL_AUTH flag must not be set.
   webrtc::FakeConstraints constraints;
   constraints.AddMandatory(webrtc::MediaConstraintsInterface::kEnableDtlsSrtp,
                            webrtc::MediaConstraintsInterface::kValueTrue);
 
-  rtc::scoped_refptr<webrtc::PortAllocatorFactoryInterface>
-      port_allocator_factory = protocol::ChromiumPortAllocatorFactory::Create(
-          network_settings_, url_request_context_getter_);
+  scoped_ptr<cricket::PortAllocator> port_allocator =
+      protocol::ChromiumPortAllocator::Create(url_request_context_getter_);
 
   peer_connection_ = peer_conn_factory_->CreatePeerConnection(
-      rtc_config, &constraints, port_allocator_factory, nullptr, this);
+      rtc_config, &constraints,
+      rtc::scoped_ptr<cricket::PortAllocator>(port_allocator.release()),
+      nullptr, this);
 
   if (!peer_connection_.get()) {
     CleanupPeerConnection();
     return false;
   }
 
   VLOG(1) << "Created PeerConnection successfully.";
 
   create_session_desc_observer_ =
       CastCreateSessionDescriptionObserver::Create(this);
@@ skipping 137 matching lines @@
   json.SetString(kWebRtcCandidate, candidate_str);
   std::string json_str;
   if (!base::JSONWriter::Write(json, &json_str)) {
     LOG(ERROR) << "Failed to serialize candidate message.";
     return;
   }
   SendMessageToClient(kSubjectNewCandidate, json_str);
 }
 
 }  // namespace remoting