Add a chrome://nacl page to show if NaCl is enabled and if PNaCl is installed.

chrome/browser/resources/about_nacl.js

 /**
 * Takes the |moduleListData| input argument which represents data about
 * the currently available modules and populates the html jstemplate
 * with that data. It expects an object structure like the above.
 * @param {Object} moduleListData Information about available modules
 */
 function renderTemplate(moduleListData) {
   // This is the javascript code that processes the template:
   var input = new JsEvalContext(moduleListData);
-  var output = document.getElementById('flashInfoTemplate');
+  var output = document.getElementById('naclInfoTemplate');
   jstProcess(input, output);
 }
 
 /**
-* Asks the C++ FlashUIDOMHandler to get details about the Flash and return
-* the data in returnFlashInfo() (below).
+* Asks the C++ NaClUIDOMHandler to get details about the NaCl and return
+* the data in returnNaClInfo() (below).
 */
-function requestFlashInfo() {
-  chrome.send('requestFlashInfo', []);
+function requestNaClInfo() {
+  chrome.send('requestNaClInfo');
 }
 
 /**
 * Called by the WebUI to re-populate the page with data representing the
-* current state of Flash.
+* current state of NaCl.
+* @param {Object} moduleListData Information about available modules
 */
-function returnFlashInfo(moduleListData) {
+function returnNaClInfo(moduleListData) {
   document.getElementById('loading-message').style.visibility = 'hidden';
   document.getElementById('body-container').style.visibility = 'visible';
   renderTemplate(moduleListData);
 }
 
 // Get data and have it displayed upon loading.
-document.addEventListener('DOMContentLoaded', requestFlashInfo);
-
+document.addEventListener('DOMContentLoaded', requestNaClInfo);