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

chrome/browser/resources/ntp4/new_tab.js

Index: chrome/browser/resources/ntp4/new_tab.js
diff --git a/chrome/browser/resources/ntp4/new_tab.js b/chrome/browser/resources/ntp4/new_tab.js
index 621157ee7f597d4c29cb691793ae844d09742c0c..74604ba0892bf1db7836874a2448ac38606a0933 100644
--- a/chrome/browser/resources/ntp4/new_tab.js
+++ b/chrome/browser/resources/ntp4/new_tab.js
@@ -113,6 +113,12 @@ cr.define('ntp4', function() {
                               false);
     chrome.send('getMostVisited');
 
+    if (templateData.isSuggestionsPageEnabled) {
+      var suggestions_script = document.createElement('script');
+      suggestions_script.src = 'suggestions_page.js';
+      document.querySelector('head').appendChild(suggestions_script);

[Dan Beam, 2012/02/28 22:30:12]

Why not something along the lines of

  suggestions_script.onload = function() {
    newTabView.appendTilePage(new ntp4.SuggestionsPage(),
                              localStrings.getString('suggestions'),
                              false,
                              newTabView.appsPages[0]);
    chrome.send('getSuggestions');
  };

?

[GeorgeY, 2012/02/29 00:15:45]

Oh, this works as well, done.

+    }
+
     var webstoreLink = localStrings.getString('webStoreLink');
     if (templateData.isWebStoreExperimentEnabled) {
       var url = appendParam(webstoreLink, 'utm_source', 'chrome-ntp-launcher');
@@ -423,6 +429,10 @@ cr.define('ntp4', function() {
   function setMostVisitedPages(data, hasBlacklistedUrls) {
     newTabView.mostVisitedPage.data = data;
     cr.dispatchSimpleEvent(document, 'sectionready', true, true);
+  }
+
+  function setSuggestionsPages(data, hasBlacklistedUrls) {
+    newTabView.suggestionsPage.data = data;
   }
 
   /**
@@ -513,6 +523,10 @@ cr.define('ntp4', function() {
     return newTabView.cardSlider;
   }
 
+  function getNewTabView() {
+    return newTabView;
+  }
+
   function leaveRearrangeMode() {
     return newTabView.leaveRearrangeMode.apply(newTabView, arguments);
   }
@@ -535,11 +549,13 @@ cr.define('ntp4', function() {
     getAppsCallback: getAppsCallback,
     getAppsPageIndex: getAppsPageIndex,
     getCardSlider: getCardSlider,
+    getNewTabView: getNewTabView,
     onLoad: onLoad,
     leaveRearrangeMode: leaveRearrangeMode,
     saveAppPageName: saveAppPageName,
-    setAppToBeHighlighted: setAppToBeHighlighted,
+    setAppToBeHighlighted: setAppToBeHighlighted,
     setMostVisitedPages: setMostVisitedPages,
+    setSuggestionsPages: setSuggestionsPages,
     setRecentlyClosedTabs: setRecentlyClosedTabs,
     setStripeColor: setStripeColor,
     showNotification: showNotification,
@@ -554,8 +570,8 @@ cr.define('ntp4', function() {
 var getAppsCallback = ntp4.getAppsCallback;
 var appsPrefChangeCallback = ntp4.appsPrefChangeCallback;
 var themeChanged = ntp4.themeChanged;
-var recentlyClosedTabs = ntp4.setRecentlyClosedTabs;
-var setMostVisitedPages = ntp4.setMostVisitedPages;
+var recentlyClosedTabs = ntp4.setRecentlyClosedTabs;
+var setMostVisitedPages = ntp4.setMostVisitedPages;
 var updateLogin = ntp4.updateLogin;
 
 document.addEventListener('DOMContentLoaded', ntp4.onLoad);