Mojo-ifying chrome://version.

components/version_ui/resources/about_version_ios.js

 // Copyright (c) 2011 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.
 
 /**
  * Callback from the backend with the list of variations to display.
  * This call will build the variations section of the version page, or hide that
  * section if there are none to display.
  * @param {!Array<string>} variationsList The list of variations.
  */
 function returnVariationInfo(variationsList) {
   $('variations-section').hidden = !variationsList.length;
   $('variations-list').appendChild(
       parseHtmlSubset(variationsList.join('<br>'), ['BR']));
 }
 
-/**
- * Callback from the backend with the executable and profile paths to display.
- * @param {string} execPath The executable path to display.
- * @param {string} profilePath The profile path to display.
- */
-function returnFilePaths(execPath, profilePath) {
-  $('executable_path').textContent = execPath;
-  $('profile_path').textContent = profilePath;
-}
-
-/**
- * Callback from the backend with the Flash version to display.
- * @param {string} flashVersion The Flash version to display.
- */
-function returnFlashVersion(flashVersion) {
-  $('flash_version').textContent = flashVersion;
-}
-
-/**
- * Callback from the backend with the OS version to display.
- * @param {string} osVersion The OS version to display.
- */
-function returnOsVersion(osVersion) {
-  $('os_version').textContent = osVersion;
-}
 
 /* All the work we do onload. */
 function onLoadWork() {

[Dan Beam, 2015/12/09 21:45:07]

nit: onLoad seems more like everywhere else, or just inlining the method

   chrome.send('requestVersionInfo');
 }
 
 document.addEventListener('DOMContentLoaded', onLoadWork);