title: Chrome app start tcp server
body: <p>I tried to start a simple tcp-server:</p>
  
  <pre><code>chrome.sockets.tcpServer.create({}, function(info){
      chrome.sockets.tcpServer.listen(info.socketId, 'localhost', 2000, function(result){
          console.log(result);
      });
  });
  </code></pre>
  
  <p>But somehow <code>console.log(result);</code> always prints out <code>undefined</code>!</p>
  
  <p><a href="http://developer.chrome.com/apps/sockets_tcpServer#method-create" rel="noreferrer">http://developer.chrome.com/apps/sockets_tcpServer#method-create</a></p>
  
  <p><a href="http://developer.chrome.com/apps/sockets_tcpServer#method-listen" rel="noreferrer">http://developer.chrome.com/apps/sockets_tcpServer#method-listen</a></p>
  
  <p>What do i wrong? Thanks!</p>