Add ARC version to help and version pages

chrome/browser/resources/help/help_page.js

 // Copyright 2014 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.
 
 cr.define('help', function() {
   var Page = cr.ui.pageManager.Page;
   var PageManager = cr.ui.pageManager.PageManager;
 
   /**
    * Encapsulated handling of the About page. Called 'help' internally to avoid
@@ skipping 487 matching lines @@
      */
     setOSVersion_: function(version) {
       if (!cr.isChromeOS)
         console.error('OS version unsupported on non-CrOS');
 
       $('os-version').parentNode.hidden = (version == '');
       $('os-version').textContent = version;
     },
 
     /**
+     * @param {string} version Version of ARC.
+     * @private
+     */
+    setARCVersion_: function(version) {
+      if (!cr.isChromeOS)
+        console.error('ARC version unsupported on non-CrOS');
+
+      $('arc-version').parentNode.hidden = (version == '');
+      $('arc-version').textContent = version;
+    },
+
+    /**
      * @param {string} firmware Firmware on Chrome OS.
      * @private
      */
     setOSFirmware_: function(firmware) {
       if (!cr.isChromeOS)
         console.error('OS firmware unsupported on non-CrOS');
 
       $('firmware').parentNode.hidden = (firmware == '');
       $('firmware').textContent = firmware;
     },
@@ skipping 145 matching lines @@
   };
 
   HelpPage.setObsoleteSystemEndOfTheLine = function(endOfTheLine) {
     HelpPage.getInstance().setObsoleteSystemEndOfTheLine_(endOfTheLine);
   };
 
   HelpPage.setOSVersion = function(version) {
     HelpPage.getInstance().setOSVersion_(version);
   };
 
+  HelpPage.setARCVersion = function(version) {
+    HelpPage.getInstance().setARCVersion_(version);
+  };
+
   HelpPage.setOSFirmware = function(firmware) {
     HelpPage.getInstance().setOSFirmware_(firmware);
   };
 
   HelpPage.updateIsEnterpriseManaged = function(isEnterpriseManaged) {
     if (!cr.isChromeOS)
       return;
     HelpPage.getInstance().updateIsEnterpriseManaged_(isEnterpriseManaged);
   };
 
@@ skipping 29 matching lines @@
   HelpPage.setRegulatoryLabelText = function(text) {
     assert(cr.isChromeOS);
     HelpPage.getInstance().setRegulatoryLabelText_(text);
   };
 
   // Export
   return {
     HelpPage: HelpPage
   };
 });