Add IPC for DNS host address resolution.

content/browser/renderer_host/p2p/socket_dispatcher_host.h

 // Copyright (c) 2011 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_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_
 
 #include <map>
 
 #include "content/browser/browser_message_filter.h"
 #include "content/common/p2p_sockets.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/network_change_notifier.h"
 
+namespace content {
+class ResourceContext;
+}  // namespace content
+
 class P2PSocketHost;
 
 class P2PSocketDispatcherHost
     : public BrowserMessageFilter,
       public net::NetworkChangeNotifier::IPAddressObserver {
  public:
-  P2PSocketDispatcherHost();
+  P2PSocketDispatcherHost(const content::ResourceContext* resource_context);
   virtual ~P2PSocketDispatcherHost();
 
   // BrowserMessageFilter overrides.
   virtual void OnChannelClosing() OVERRIDE;
   virtual void OnDestruct() const OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
 
   // net::NetworkChangeNotifier::IPAddressObserver interface.
   virtual void OnIPAddressChanged() OVERRIDE;
 
  private:
   typedef std::pair<int32, int> ExtendedSocketId;
   typedef std::map<ExtendedSocketId, P2PSocketHost*> SocketsMap;
 
+  class DnsRequest;
+
   P2PSocketHost* LookupSocket(int32 routing_id, int socket_id);
 
   // Handlers for the messages coming from the renderer.
   void OnStartNetworkNotifications(const IPC::Message& msg);
   void OnStopNetworkNotifications(const IPC::Message& msg);
 
+  void OnGetHostAddress(const IPC::Message& msg,
+                        const std::string& host_name,
+                        int32 request_id);
+
   void OnCreateSocket(const IPC::Message& msg,
                       P2PSocketType type,
                       int socket_id,
                       const net::IPEndPoint& local_address,
                       const net::IPEndPoint& remote_address);
   void OnAcceptIncomingTcpConnection(const IPC::Message& msg,
                                      int listen_socket_id,
                                      const net::IPEndPoint& remote_address,
                                      int connected_socket_id);
   void OnSend(const IPC::Message& msg, int socket_id,
               const net::IPEndPoint& socket_address,
               const std::vector<char>& data);
   void OnDestroySocket(const IPC::Message& msg, int socket_id);
 
   void DoGetNetworkList();
   void SendNetworkList(const net::NetworkInterfaceList& list);
 
+  void OnAddressResolved(DnsRequest* request,
+                         const net::IPAddressNumber& result);
+
+  const content::ResourceContext* resource_context_;
+
   SocketsMap sockets_;
 
   bool monitoring_networks_;
 
   // List or routing IDs for the hosts that have subscribed to the
   // network list notifications.
   std::set<int> notifications_routing_ids_;
 
+  std::set<DnsRequest*> dns_requests_;
+
   DISALLOW_COPY_AND_ASSIGN(P2PSocketDispatcherHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_