title: Get chrome.topSites and recently closed tab
body: <p>I am developing chrome extension which will replace the new tab UI
  I am able to retrieve the installed app info.
  however I am not able to retriev the most visited and recenlty cloed tab info..</p>
  
  <p>my manifest.json</p>
  
  <pre><code>{
   "name": "Cloud Tab",
  "version": "1.0",
  "description": "New Tab with cloud UI.",
  "background_page": "background.html",
  "permissions": [ "tabs","management","topSites",
      "chrome://favicon/"],
  
  "chrome_url_overrides": {
  "newtab": "CloudTab.html"
  }
  }
  </code></pre>
  
  <p>My CloudTab.html page's script tag contains</p>
  
  <pre><code> chrome.topSites.get(function(info){
     for(var i=0;i&lt;info.length;i++) {alert(info[i].url);}
    });
  </code></pre>
  
  <p>but I get error ><b>Uncaught TypeError: Cannot call method 'get' of undefined</b>
  I have refered the google's api for this but no luck
  i m running chrome's version 13.0.782
  Any suggestion how to do ?</p>