Revert of Removing references to webrtc::PortAllocatorFactoryInterface.

content/renderer/p2p/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 CONTENT_RENDERER_P2P_PORT_ALLOCATOR_H_
 #define CONTENT_RENDERER_P2P_PORT_ALLOCATOR_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
 #include "third_party/webrtc/p2p/client/basicportallocator.h"
 #include "url/gurl.h"
 
 namespace content {
 
+class P2PPortAllocatorSession;
 class P2PSocketDispatcher;
 
 class P2PPortAllocator : public cricket::BasicPortAllocator {
  public:
   struct Config {
+    Config();
+    ~Config();
+
+    struct RelayServerConfig {
+      RelayServerConfig();
+      ~RelayServerConfig();
+
+      std::string username;
+      std::string password;
+      std::string server_address;
+      int port;
+      std::string transport_type;
+      bool secure;
+    };
+
+    std::set<rtc::SocketAddress> stun_servers;
+
+    std::vector<RelayServerConfig> relays;
+
     // Enable non-proxied UDP-based transport when set to true. When set to
     // false, it effectively disables all UDP traffic until UDP-supporting proxy
     // RETURN is available in the future.
     bool enable_nonproxied_udp = true;
 
     // Request binding to individual NICs. Whether multiple routes is allowed is
     // subject to the permission check on mic/camera. When specified as false or
     // the permission request is denied, it still uses the default local address
     // to generate a single local candidate. TODO(guoweis): Rename this to
     // |request_multiple_routes|.
     bool enable_multiple_routes = true;
 
     // Enable exposing the default local address when set to true. This is
     // only in effect when the |enable_multiple_routes| is false or the
     // permission check of mic/camera is denied.
     bool enable_default_local_candidate = true;
   };
 
   P2PPortAllocator(
       const scoped_refptr<P2PSocketDispatcher>& socket_dispatcher,
       scoped_ptr<rtc::NetworkManager> network_manager,
       rtc::PacketSocketFactory* socket_factory,
       const Config& config,
       const GURL& origin,
       const scoped_refptr<base::SingleThreadTaskRunner> task_runner);
   ~P2PPortAllocator() override;
 
+  cricket::PortAllocatorSession* CreateSessionInternal(
+      const std::string& content_name,
+      int component,
+      const std::string& ice_username_fragment,
+      const std::string& ice_password) override;
+
  private:
+  friend class P2PPortAllocatorSession;
   scoped_ptr<rtc::NetworkManager> network_manager_;
   scoped_refptr<P2PSocketDispatcher> socket_dispatcher_;
   Config config_;
   GURL origin_;
 
   // This is the thread |network_manager_| is associated with and must be used
   // to delete |network_manager_|.
   const scoped_refptr<base::SingleThreadTaskRunner>
       network_manager_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(P2PPortAllocator);
 };
 
+class P2PPortAllocatorSession : public cricket::BasicPortAllocatorSession {
+ public:
+  P2PPortAllocatorSession(
+      P2PPortAllocator* allocator,
+      const std::string& content_name,
+      int component,
+      const std::string& ice_username_fragment,
+      const std::string& ice_password);
+  ~P2PPortAllocatorSession() override;
+
+ protected:
+  // Overrides for cricket::BasicPortAllocatorSession.
+  void GetPortConfigurations() override;
+
+ private:
+  P2PPortAllocator* allocator_;
+
+  DISALLOW_COPY_AND_ASSIGN(P2PPortAllocatorSession);
+};
+
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_P2P_PORT_ALLOCATOR_H_