Added new adaptive "Suggest" tab on the New Tab Page, behing the flag, for the experiments.

chrome/browser/resources/ntp4/page_list_view.js

Index: chrome/browser/resources/ntp4/page_list_view.js
diff --git a/chrome/browser/resources/ntp4/page_list_view.js b/chrome/browser/resources/ntp4/page_list_view.js
index fc50b56a7d14b807ff730242e542133f30d31ca9..ad859e0e679e049735c2baad30da539a3a2858d6 100644
--- a/chrome/browser/resources/ntp4/page_list_view.js
+++ b/chrome/browser/resources/ntp4/page_list_view.js
@@ -59,6 +59,12 @@ cr.define('ntp4', function() {
     appsPages: undefined,
 
     /**
+     * The Suggestions page.
+     * @type {!Element|undefined}
+     */
+    suggestionsPage: undefined,
+
+    /**
      * The Most Visited page.
      * @type {!Element|undefined}
      */
@@ -197,9 +203,15 @@ cr.define('ntp4', function() {
      * the page list.
      */
     appendTilePage: function(page, title, titleIsEditable, opt_refNode) {
+      if (typeof ntp4.SuggestionsPage != 'undefined' &&

[Evan Stade, 2012/02/24 23:28:01]

this is a hack.

[GeorgeY, 2012/02/25 01:30:55]

I will not argue with you what is a hack or not here, but I changed the code.

+          page instanceof ntp4.SuggestionsPage &&
+          typeof this.appsPages != 'undefined' && this.appsPages.length > 0) {
+        // Add suggestion page before the apps page(s).
+        opt_refNode = this.appsPages[0];
+      }
       if (opt_refNode) {
         var refIndex = this.getTilePageIndex(opt_refNode);
-        this.cardSlider.insertCardAtIndex(page, refIndex);
+        this.cardSlider.addCardAtIndex(page, refIndex);
       } else {
         this.cardSlider.appendCard(page);
       }
@@ -212,6 +224,11 @@ cr.define('ntp4', function() {
         this.mostVisitedPage = page;
       }
 
+      if (typeof ntp4.SuggestionsPage != 'undefined' &&
+          page instanceof ntp4.SuggestionsPage) {
+        this.suggestionsPage = page;
+      }
+
       // If we're appending an AppsPage and it's a temporary page, animate it.
       var animate = page instanceof ntp4.AppsPage &&
                     page.classList.contains('temporary');
@@ -429,6 +446,10 @@ cr.define('ntp4', function() {
           if (this.mostVisitedPage)
             this.cardSlider.selectCardByValue(this.mostVisitedPage);
           break;
+        case templateData['suggestions_page_id']:
+          if (this.suggestionsPage)
+            this.cardSlider.selectCardByValue(this.suggestionsPage);
+          break;
       }
     },
 
@@ -543,6 +564,9 @@ cr.define('ntp4', function() {
         } else if (page.classList.contains('most-visited-page')) {
           this.shownPage = templateData.most_visited_page_id;
           this.shownPageIndex = 0;
+        } else if (page.classList.contains('suggestions-page')) {
+          this.shownPage = templateData.suggestions_page_id;
+          this.shownPageIndex = 0;
         } else {
           console.error('unknown page selected');
         }