Fix typo in multi-iframe NTP JS

chrome/browser/resources/local_ntp/most_visited_util.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 Utilities for rendering most visited thumbnails and titles.
  */
 
 <include src="instant_iframe_validation.js">
@@ skipping 266 matching lines @@
       title: params.ti || '',
       direction: params.di || '',
       domain: params.dom || '',
       tileSource: NTPLoggingTileSource.SERVER
     };
   } else {
     var apiHandle = chrome.embeddedSearch.searchBox;
     data = apiHandle.getMostVisitedItemData(params.rid);
     if (!data)
       return;
-    data.tileSource: NTPLoggingTileSource.CLIENT;
+    data.tileSource = NTPLoggingTileSource.CLIENT;
   }
 
   if (isFinite(params.dummy) && parseInt(params.dummy, 10)) {
     data.dummy = true;
   }
   if (/^javascript:/i.test(data.url) ||
       /^javascript:/i.test(data.thumbnailUrl))
     return;
   if (data.direction)
     document.body.dir = data.direction;
   fill(params, data);
 }
 
 
 /**
  * Sends a POST request to ping url.
  * @param {string} url URL to be pinged.
  */
 function generatePing(url) {
   if (navigator.sendBeacon) {
     navigator.sendBeacon(url);
   } else {
     // if sendBeacon is not enabled, we fallback for "a ping".
     var a = document.createElement('a');
     a.href = '#';
     a.ping = url;
     a.click();
   }
 }