It is time.

ui/accessibility/extensions/highcontrast/popup.js

-// Copyright (c) 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.
-
-var site;
-var key1;
-var key2;
-
-function setRadio(name, value) {
-  var radios = document.querySelectorAll('input[name="' + name + '"]');
-  for (var i = 0; i < radios.length; i++) {
-    radios[i].checked = (radios[i].value == value);
-    radios[i].disabled = !getEnabled();
-  }
-}
-
-function update() {
-  document.body.className = getEnabled() ? '' : 'disabled';
-
-  if (getEnabled()) {
-    $('title').innerText = 'High Contrast is Enabled';
-    $('toggle').innerHTML = '<b>Disable</b> ' +
-                            '<span class="kb">(' + key1 + ')</span>';
-    $('subcontrols').style.display = 'block';
-  } else {
-    $('title').innerText = 'High Contrast is Disabled';
-    $('toggle').innerHTML = '<b>Enable</b> ' +
-                            '<span class="kb">(' + key1 + ')</span>';
-    $('subcontrols').style.display = 'none';
-  }
-
-  setRadio('keyaction', getKeyAction());
-  if (site) {
-    setRadio('scheme', getSiteScheme(site));
-    $('make_default').disabled = (getSiteScheme(site) == getDefaultScheme());
-  } else {
-    setRadio('scheme', getDefaultScheme());
-  }
-  if (getEnabled()) {
-    document.documentElement.setAttribute(
-        'hc',
-        site ? 'a' + getSiteScheme(site) : 'a' + getDefaultScheme());
-  } else {
-    document.documentElement.setAttribute('hc', 'a0');
-  }
-  chrome.extension.getBackgroundPage().updateTabs();
-}
-
-function onToggle() {
-  setEnabled(!getEnabled());
-  update();
-}
-
-function onForget() {
-  resetSiteSchemes();
-  update();
-}
-
-function onRadioChange(name, value) {
-  switch (name) {
-    case 'keyaction':
-      setKeyAction(value);
-      break;
-    case 'apply':
-      setApply(value);
-      break;
-    case 'scheme':
-      if (site) {
-        setSiteScheme(site, value);
-      } else {
-        setDefaultScheme(value);
-      }
-      break;
-  }
-  update();
-}
-
-function onMakeDefault() {
-  setDefaultScheme(getSiteScheme(site));
-  update();
-}
-
-function addRadioListeners(name) {
-  var radios = document.querySelectorAll('input[name="' + name + '"]');
-  for (var i = 0; i < radios.length; i++) {
-    radios[i].addEventListener('change', function(evt) {
-      onRadioChange(evt.target.name, evt.target.value);
-    }, false);
-    radios[i].addEventListener('click', function(evt) {
-      onRadioChange(evt.target.name, evt.target.value);
-    }, false);
-  }
-}
-
-function init() {
-  var i18nElements = document.querySelectorAll('*[i18n-content]');
-  for (var i = 0; i < i18nElements.length; i++) {
-    var elem = i18nElements[i];
-    var msg = elem.getAttribute('i18n-content');
-    elem.innerHTML = chrome.i18n.getMessage(msg);
-  }
-
-  addRadioListeners('keyaction');
-  addRadioListeners('apply');
-  addRadioListeners('scheme');
-  $('toggle').addEventListener('click', onToggle, false);
-  $('make_default').addEventListener('click', onMakeDefault, false);
-  $('forget').addEventListener('click', onForget, false);
-  if (navigator.appVersion.indexOf('Mac') != -1) {
-    key1 = '&#x2318;+Shift+F11';
-    key2 = '&#x2318;+Shift+F12';
-  } else {
-    key1 = 'Shift+F11';
-    key2 = 'Shift+F12';
-  }
-
-  chrome.windows.getLastFocused({'populate': true}, function(window) {
-    for (var i = 0; i < window.tabs.length; i++) {
-      var tab = window.tabs[i];
-      if (tab.active) {
-        if (isDisallowedUrl(tab.url)) {
-          $('scheme_title').innerText = 'Default color scheme:';
-          $('make_default').style.display = 'none';
-        } else {
-          site = siteFromUrl(tab.url);
-          $('scheme_title').innerHTML = 'Color scheme for <b>' + site +
-              '</b>:<br><span class="kb">(' + key2 + ')</span>';
-          $('make_default').style.display = 'block';
-        }
-        update();
-        return;
-      }
-    }
-    site = 'unknown site';
-    update();
-  });
-}
-
-window.addEventListener('load', init, false);