[Most Visited] Support two additional parameters in the iframes

chrome/browser/resources/local_ntp/most_visited_thumbnail.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 /**
  * @fileoverview Rendering for iframed most visited thumbnails.
  */
 
 window.addEventListener('DOMContentLoaded', function() {
   'use strict';
 
   fillMostVisited(document.location, function(params, data) {
     function logEvent(eventName) {
       chrome.embeddedSearch.newTabPage.logEvent(eventName);
     }
     function logMostVisitedImpression(tileIndex, provider) {
       chrome.embeddedSearch.newTabPage.logMostVisitedImpression(
           tileIndex, provider);
     }
     function displayLink(link) {
       document.body.appendChild(link);
       window.parent.postMessage('linkDisplayed', '{{ORIGIN}}');
     }
     function showDomainElement() {
       var link = createMostVisitedLink(
-          params, data.url, data.title, undefined, data.provider);
+          params, data.url, data.title, undefined, data.direction,
+          data.provider);
       var domain = document.createElement('div');
       domain.textContent = data.domain;
       link.appendChild(domain);
       displayLink(link);
     }
     // Called on intentionally empty tiles for which the visuals are handled
     // externally by the page itself.
     function showEmptyTile() {
       displayLink(createMostVisitedLink(
-          params, data.url, data.title, undefined, data.provider));
+          params, data.url, data.title, undefined, data.direction,
+          data.provider));
     }
     // Creates and adds an image.
     function createThumbnail(src) {
       var image = document.createElement('img');
       image.onload = function() {
         var shadow = document.createElement('span');
         shadow.className = 'shadow';
         var link = createMostVisitedLink(
-            params, data.url, data.title, undefined, data.provider);
+            params, data.url, data.title, undefined, data.direction,
+            data.provider);
         link.appendChild(shadow);
         link.appendChild(image);
         displayLink(link);
       };
       image.onerror = function() {
         if (data.domain) {
           showDomainElement();
           logEvent(NTP_LOGGING_EVENT_TYPE.NTP_GRAY_TILE_FALLBACK);
         } else {
           showEmptyTile();
@@ skipping 15 matching lines @@
       logEvent(NTP_LOGGING_EVENT_TYPE.NTP_EXTERNAL_TILE);
     }
     logEvent(NTP_LOGGING_EVENT_TYPE.NTP_TILE);
 
     // Log an impression if we know the position of the tile.
     if (isFinite(params.pos) && data.provider) {
       logMostVisitedImpression(parseInt(params.pos, 10), data.provider);
     }
   });
 });