Add bind(), recvFrom(), sendTo() for UDP socket.

chrome/browser/extensions/api/socket/udp_socket.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 CHROME_BROWSER_EXTENSIONS_API_SOCKET_UDP_SOCKET_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SOCKET_UDP_SOCKET_H_
 #pragma once
 
 #include <string>
 
 #include "chrome/browser/extensions/api/socket/socket.h"
-#include "net/udp/datagram_client_socket.h"
+#include "net/udp/udp_socket.h"
 
 namespace net {
 class Socket;
 }
 
 namespace extensions {
 
 class APIResourceEventNotifier;
 
 class UDPSocket : public Socket {
  public:
-  UDPSocket(const std::string& address, int port,
-            APIResourceEventNotifier* event_notifier);
+  explicit UDPSocket(APIResourceEventNotifier* event_notifier);
   virtual ~UDPSocket();
 
-  virtual bool IsValid() OVERRIDE;
-
-  virtual int Connect() OVERRIDE;
+  virtual int Connect(const std::string& address, int port) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
-
-  static UDPSocket* CreateSocketForTesting(
-      net::DatagramClientSocket* datagram_client_socket,
-      const std::string& address, int port,
-      APIResourceEventNotifier* event_notifier);
-
- protected:
-  virtual net::Socket* socket() OVERRIDE;
+  virtual int Bind(const std::string& address, int port) OVERRIDE;
+  virtual int Read(scoped_refptr<net::IOBuffer> io_buffer,
+                   int io_buffer_size) OVERRIDE;
+  virtual int Write(scoped_refptr<net::IOBuffer> io_buffer,
+                    int bytes) OVERRIDE;
+  virtual int RecvFrom(scoped_refptr<net::IOBuffer> io_buffer,
+                       int io_buffer_size,
+                       net::IPEndPoint* address) OVERRIDE;
+  virtual int SendTo(scoped_refptr<net::IOBuffer> io_buffer,
+                     int byte_count,
+                     const std::string& address,
+                     int port) OVERRIDE;
 
  private:
-  // Special constructor for testing.
-  UDPSocket(net::DatagramClientSocket* datagram_client_socket,
-            const std::string& address, int port,
-            APIResourceEventNotifier* event_notifier);
-
-  scoped_ptr<net::DatagramClientSocket> socket_;
+  scoped_ptr<net::UDPSocket> socket_;
 };
 
 }  //  namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SOCKET_UDP_SOCKET_H_