Add message and image to NTP to promote extensions and bookmark sync....

chrome/browser/resources/new_new_tab.js

 
 // Helpers
 
 // TODO(arv): Remove these when classList is available in HTML5.
 // https://bugs.webkit.org/show_bug.cgi?id=20709
 function hasClass(el, name) {
   return el.nodeType == 1 && el.className.split(/\s+/).indexOf(name) != -1;
 }
 
 function addClass(el, name) {
@@ skipping 1569 matching lines @@
 function fixLinkUnderline(el) {
   var span = document.createElement('span');
   span.className = 'link-color';
   while (el.hasChildNodes()) {
     span.appendChild(el.firstChild);
   }
   el.appendChild(span);
 }
 
 updateAttribution();
+
+/* Close the promo notices when close button on the promo-line is clicked. */

[arv (Not doing code reviews), 2009/11/16 17:47:48]

// Comment in JS.

/**
 * JSDoc comment
 */

In this case you should use a comment.

[Miranda Callahan, 2009/11/16 22:10:54]

Done.

+$('promo-close').onclick = function (e) {
+  $('promo-line').style.display = 'none';
+  $('bottom-right-promo').style.display = 'none';
+  chrome.send('stopPromoMessages');
+  e.preventDefault();
+};