Decouple DevTools from socket implementation.

net/base/tcp_listen_socket.h

Index: net/base/tcp_listen_socket.h
diff --git a/net/base/tcp_listen_socket.h b/net/base/tcp_listen_socket.h
index fed1df36689d7b2f67a8728a4af981b7ff3a614b..caab8f7d38a834fc27136ac4bcf8f1d47e9677b9 100644
--- a/net/base/tcp_listen_socket.h
+++ b/net/base/tcp_listen_socket.h
@@ -25,8 +25,6 @@ class NET_EXPORT TCPListenSocket : public StreamListenSocket {
   static scoped_refptr<TCPListenSocket> CreateAndListen(
       const std::string& ip, int port, StreamListenSocket::Delegate* del);
 
-  virtual ~TCPListenSocket();
-
  protected:
   TCPListenSocket(SOCKET s, StreamListenSocket::Delegate* del);
 
@@ -36,9 +34,29 @@ class NET_EXPORT TCPListenSocket : public StreamListenSocket {
   virtual void Accept() OVERRIDE;
 
  private:
+  friend class scoped_refptr<TCPListenSocket>;
+  virtual ~TCPListenSocket();
+
   DISALLOW_COPY_AND_ASSIGN(TCPListenSocket);
 };
 
+// Factory that can be used to instantiate TCPListenSocket.
+class TCPListenSocketFactory : public StreamListenSocketFactory {
+ public:
+  TCPListenSocketFactory(const std::string& ip, int port);
+  virtual ~TCPListenSocketFactory();
+
+  // StreamListenSocketFactory overrides.
+  virtual scoped_refptr<StreamListenSocket> CreateAndListen(
+      StreamListenSocket::Delegate* delegate) const OVERRIDE;
+
+ private:
+  const std::string ip_;
+  const int port_;
+
+  DISALLOW_COPY_AND_ASSIGN(TCPListenSocketFactory);
+};
+
 }  // namespace net
 
 #endif  // NET_BASE_TCP_LISTEN_SOCKET_H_