Add TransportContext class.

remoting/client/plugin/pepper_port_allocator.h

 // Copyright (c) 2012 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 REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/cpp/instance_handle.h"
+#include "remoting/protocol/port_allocator_factory.h"
 #include "third_party/webrtc/p2p/client/httpportallocator.h"
 
 namespace remoting {
 
 // An implementation of cricket::PortAllocator for libjingle that is
 // used by the client plugin. There are two differences from
 // cricket::HttpPortAllocator:
 //   * PepperPortAllocator uses Pepper URLLoader API when creating
 //     relay sessions.
 //   * PepperPortAllocator resolves STUN DNS names and passes IP
@@ skipping 19 matching lines @@
       scoped_ptr<rtc::NetworkManager> network_manager,
       scoped_ptr<rtc::PacketSocketFactory> socket_factory);
 
   pp::InstanceHandle instance_;
   scoped_ptr<rtc::NetworkManager> network_manager_;
   scoped_ptr<rtc::PacketSocketFactory> socket_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPortAllocator);
 };
 
+class PepperPortAllocatorFactory : public protocol::PortAllocatorFactory {
+ public:
+  PepperPortAllocatorFactory(const pp::InstanceHandle& instance);
+  ~PepperPortAllocatorFactory() override;
+
+   // PortAllocatorFactory interface.
+  scoped_ptr<cricket::HttpPortAllocatorBase> CreatePortAllocator() override;
+
+ private:
+  pp::InstanceHandle instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperPortAllocatorFactory);
+};
+
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_PORT_ALLOCATOR_H_