title: chrome.management.onInstalled event not fired
body: <p>I have nothing in my background.js except </p>
  
  <pre><code>var extensionID;
  chrome.management.onInstalled.addListener(function(info) {
      console.log('somethingz installed...');
  });
  </code></pre>
  
  <p>I also have "management" permission declared in manifest.json.
  However, the onInstalled Event is not fired and console never output the sentence...
  chrome.runtime.onInstalled does work, but I need to listen to uninstalled event to do some cleaning work in my code. Chrome.runtime seems does not support uninstalled event.</p>
  
  <p>Could someone tell me what's the problem is? Thank you in advance!</p>