Rename "managed (mode|user)" to "supervised user" (part 6)

chrome/browser/resources/managed_mode_block_interstitial.js

-// Copyright (c) 2012 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.
-
-function sendCommand(cmd) {
-  window.domAutomationController.setAutomationId(1);
-  window.domAutomationController.send(cmd);
-}
-
-function initialize() {
-  if (loadTimeData.getBoolean('allowAccessRequests')) {
-    $('request-access-button').onclick = function(event) {
-      updateAfterRequestSent();
-      sendCommand('request');
-    };
-  } else {
-    $('request-access-button').hidden = true;
-  }
-  $('back-button').onclick = function(event) {
-    sendCommand('back');
-  };
-}
-
-/**
- * Updates the interstitial to show that the request was sent.
- */
-function updateAfterRequestSent() {
-  $('error-img').hidden = true;
-  $('request-access-button').hidden = true;
-  $('block-page-message').hidden = true;
-  $('request-sent-message').hidden = false;
-}
-
-document.addEventListener('DOMContentLoaded', initialize);