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

chrome/browser/ui/webui/ntp/new_tab_ui.h

Index: chrome/browser/ui/webui/ntp/new_tab_ui.h
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui.h b/chrome/browser/ui/webui/ntp/new_tab_ui.h
index be6e84769d80fa1244c25abb4020976c9f719915..8b26c10645602355de1774ffe27338c4a9c98c7f 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.h
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.h
@@ -37,6 +37,9 @@ class NewTabUI : public content::WebUIController,
   // Returns whether or not the CWS footer experiment is enabled.
   static bool IsWebStoreExperimentEnabled();
 
+  // Returns whether or not the "suggested links page" is enabled.
+  static bool IsSuggestedPageEnabled();
+
   // Adds "url", "title", and "direction" keys on incoming dictionary, setting
   // title as the url as a fallback on empty title.
   static void SetURLTitleAndDirection(base::DictionaryValue* dictionary,