title: Is it possible to call setBadgeText on pageAction in a chrome extension?
body: <p>I'm trying to set the badge text for my chrome extension with the code below:</p>
  
  <pre class="lang-js prettyprint-override"><code>chrome.pageAction.setBadgeText({"text":'3'})
  </code></pre>
  
  <p>This throws an error <code>Object #&lt;Object&gt; has no method setBadgeText</code>.</p>