Added unit test for DevTools' ephemeral port support.

net/socket/stream_listen_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.
 
 // Stream-based listen socket implementation that handles reading and writing
 // to the socket, but does not handle creating the socket nor connecting
 // sockets, which are handled by subclasses on creation and in Accept,
 // respectively.
 
 // StreamListenSocket handles IO asynchronously in the specified MessageLoop.
@@ skipping 54 matching lines @@
 
    protected:
     virtual ~Delegate() {}
   };
 
   // Send data to the socket.
   void Send(const char* bytes, int len, bool append_linefeed = false);
   void Send(const std::string& str, bool append_linefeed = false);
 
   // Copies the local address to |address|. Returns a network error code.
-  int GetLocalAddress(IPEndPoint* address);
+  // This method is virtual to support unit testing.
+  virtual int GetLocalAddress(IPEndPoint* address);
   // Copies the peer address to |address|. Returns a network error code.
-  int GetPeerAddress(IPEndPoint* address);
+  // This method is virtual to support unit testing.
+  virtual int GetPeerAddress(IPEndPoint* address);
 
   static const int kSocketError;
 
  protected:
   enum WaitState {
     NOT_WAITING      = 0,
     WAITING_ACCEPT   = 1,
     WAITING_READ     = 2
   };
 
@@ skipping 53 matching lines @@
   virtual ~StreamListenSocketFactory() {}
 
   // Returns a new instance of StreamListenSocket or NULL if an error occurred.
   virtual scoped_ptr<StreamListenSocket> CreateAndListen(
       StreamListenSocket::Delegate* delegate) const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_STREAM_LISTEN_SOCKET_H_