Add finch flag for rendering a recently closed link on the local ntp.

chrome/browser/resources/local_ntp/local_ntp.js

Index: chrome/browser/resources/local_ntp/local_ntp.js
diff --git a/chrome/browser/resources/local_ntp/local_ntp.js b/chrome/browser/resources/local_ntp/local_ntp.js
index 3d7825ecb30befc3eb8256a8e22be04b6f14e7ce..9aed3fedeac59eee3d3b0a2619747561d0c3c17d 100644
--- a/chrome/browser/resources/local_ntp/local_ntp.js
+++ b/chrome/browser/resources/local_ntp/local_ntp.js
@@ -39,6 +39,7 @@ var CLASSES = {
   FAKEBOX_FOCUS: 'fakebox-focused', // Applies focus styles to the fakebox
   FAVICON: 'mv-favicon',
   GOOGLE_PAGE: 'google-page', // shows the Google logo and fakebox
+  HIDE_ATTRIBUTION: 'attribution-hide',
   HIDE_BLACKLIST_BUTTON: 'mv-x-hide', // hides blacklist button during animation
   HIDE_NOTIFICATION: 'mv-notice-hide',
   HIDE_NTP: 'hide-ntp', // hides NTP and disables scrollbars
@@ -66,14 +67,17 @@ var CLASSES = {
 var IDS = {
   ACTIVE_SUGGESTIONS_CONTAINER: 'active-suggestions-container',
   ATTRIBUTION: 'attribution',
+  ATTRIBUTION_TEXT: 'attribution-text',
   CURSOR: 'cursor',
   FAKEBOX: 'fakebox',
+  FOOTER: 'footer',
   LOGO: 'logo',
   NOTIFICATION: 'mv-notice',
   NOTIFICATION_CLOSE_BUTTON: 'mv-notice-x',
   NOTIFICATION_MESSAGE: 'mv-msg',
   NTP_CONTENTS: 'ntp-contents',
   PENDING_SUGGESTIONS_CONTAINER: 'pending-suggestions-container',
+  RECENT_TABS: 'recent-tabs',
   RESTORE_ALL_LINK: 'mv-restore',
   SUGGESTION_LOADER: 'suggestion-loader',
   SUGGESTION_STYLE: 'suggestion-style',
@@ -326,7 +330,7 @@ function onThemeChange() {
  */
 function updateAttribution(url) {
   if (!url) {
-    attribution.hidden = true;
+    attribution.classList.add(CLASSES.HIDE_ATTRIBUTION);
     return;
   }
   var attributionImage = new Image();
@@ -335,10 +339,10 @@ function updateAttribution(url) {
     if (oldAttributionImage)
       removeNode(oldAttributionImage);
     attribution.appendChild(attributionImage);
-    attribution.hidden = false;
+    attribution.classList.remove(CLASSES.HIDE_ATTRIBUTION);
   };
   attributionImage.onerror = function() {
-    attribution.hidden = true;
+    attribution.classList.add(CLASSES.HIDE_ATTRIBUTION);
   };
   attributionImage.src = url;
 }
@@ -1609,6 +1613,17 @@ function init() {
     ntpContents.insertBefore(logo, ntpContents.firstChild);
   }
 
+  var recentTabsText = templateData.recentTabs;
+  if (recentTabsText) {
+    var recentTabsLink = document.createElement('span');

[samarth, 2013/05/15 16:49:17]

Can this just be an <a href="chrome://history">? Of course the link won't work
but you could hijack the click handler and call navigateContentWindow. That way
things like hovering, etc will work better.

[jeremycho, 2013/05/16 20:06:47]

It would add a non-functioning "Open link in new tab", etc. to the context menu,
so I'm not sure this is what we want.

+    recentTabsLink.id = IDS.RECENT_TABS;
+    recentTabsLink.addEventListener('click', function() {

[samarth, 2013/05/15 16:49:17]

Can you also add logic to look for a modifier and handle it appropriately?
Ctrl/command/middle-clicking should really do the right thing. Take a look at
getDispositionFromClickButton for a start.

[jeremycho, 2013/05/16 20:06:47]

Done.

+      ntpApiHandle.navigateContentWindow('chrome://history');
+    });
+    recentTabsLink.textContent = recentTabsText;
+    var footer = $(IDS.FOOTER);
+    footer.insertBefore(recentTabsLink, footer.firstChild);
+  }
 
   var notificationMessage = $(IDS.NOTIFICATION_MESSAGE);
   notificationMessage.textContent = templateData.thumbnailRemovedNotification;
@@ -1618,7 +1633,7 @@ function init() {
   var restoreAllLink = $(IDS.RESTORE_ALL_LINK);
   restoreAllLink.addEventListener('click', onRestoreAll);
   restoreAllLink.textContent = templateData.restoreThumbnailsShort;
-  attribution.textContent = templateData.attributionIntro;
+  $(IDS.ATTRIBUTION_TEXT).textContent = templateData.attributionIntro;
 
   var notificationCloseButton = $(IDS.NOTIFICATION_CLOSE_BUTTON);
   notificationCloseButton.addEventListener('click', hideNotification);