Merge 159156 - Extensions Docs Server: Fix headings with no IDs

chrome/common/extensions/docs/templates/articles/notifications.html

 <h1>Desktop Notifications</h1>
 
 
 
 <p>
 Use desktop notifications to notify users that something
 important has happened.
 Notifications appear outside the browser window.
 As the following snapshots show,
 the details of how notifications look
@@ skipping 53 matching lines @@
 
 // Or create an HTML notification:
 var notification = webkitNotifications.createHTMLNotification(
   'notification.html'  // html url - can be relative
 );
 
 // Then show the notification.
 notification.show();
 </pre>
 
-<h2>API Reference</h2>
+<h2 id="reference">API Reference</h2>
 
 <p>See the <a href="http://dev.chromium.org/developers/design-documents/desktop-notifications/api-specification">Desktop Notifications Draft Specification</a>.</p>
 
 
 <h2 id="communication">Communicating with Other Views</h2>
 
 <p>
 You can communicate between a notification
 and other views in your extension using
 <a href="extension.html#method-getBackgroundPage">getBackgroundPage()</a> and
@@ skipping 22 matching lines @@
 and for help in viewing the source code,
 see <a href="samples.html">Samples</a>.
 </p>
 
 <p>
 Also see html5rocks.com's
 <a href="http://www.html5rocks.com/tutorials/notifications/quick/">notifications tutorial</a>.
 Ignore the permission-related code;
 it's unnecessary if you declare the "notifications" permission.
 </p>