title: Native messaging of Chrome extension
body: <p>I am running an example application that uses native messaging on OS X.</p>
  
  <p>After downloading <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/api/nativeMessaging" rel="nofollow">an example of chrome</a>, I registered an extension and located a native messaging host file at /Library/Google/Chrome/NativeMessagingHosts/com.google.chrome.example.echo.json.</p>
  
  <p>According to <a href="http://developer.chrome.com/extensions/messaging.html#native-messaging-host" rel="nofollow">the guide</a>, Chrome starts a native messaging host in a separate process. 
  But I cannot look for that process.</p>
  
  <p>Is there a way for chrome to run host process? 
  What do I miss?</p>