Add TransportSession interface to prepare for WebRTC-based transport.

remoting/protocol/ice_transport_factory.cc

+// Copyright 2015 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/protocol/ice_transport_factory.h"
+
+#include "remoting/protocol/ice_transport_session.h"
+#include "remoting/protocol/libjingle_transport_factory.h"
+#include "third_party/webrtc/p2p/client/httpportallocator.h"
+
+namespace remoting {
+namespace protocol {
+
+IceTransportFactory::IceTransportFactory(
+    SignalStrategy* signal_strategy,
+    scoped_ptr<cricket::HttpPortAllocatorBase> port_allocator,
+    const NetworkSettings& network_settings,
+    TransportRole role)
+    : libjingle_transport_factory_(
+          new LibjingleTransportFactory(signal_strategy,
+                                        port_allocator.Pass(),
+                                        network_settings,
+                                        role)) {}
+IceTransportFactory::~IceTransportFactory() {}
+
+void IceTransportFactory::PrepareTokens() {
+  libjingle_transport_factory_->PrepareTokens();
+}
+
+scoped_ptr<TransportSession>
+IceTransportFactory::CreateTransportSession() {
+  return make_scoped_ptr(
+      new IceTransportSession(libjingle_transport_factory_.get()));
+}
+
+}  // namespace protocol
+}  // namespace remoting