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']));
+}
+
+
+/* All the work we do onload. */
+function onLoadWork() {
+  chrome.send('requestVersionInfo');
+}
+
+document.addEventListener('DOMContentLoaded', onLoadWork);