Migrate proxy-settings.html to options2.

chrome/browser/resources/chromeos/proxy_settings.js

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 var OptionsPage = options.OptionsPage;
 var Preferences = options.Preferences;
-var ProxyOptions = options.ProxyOptions;
+var DetailsInternetPage = options.internet.DetailsInternetPage;
 
 /**
  * DOMContentLoaded handler, sets up the page.
  */
 function load() {
   localStrings = new LocalStrings();
 
   if (cr.isChromeOS)
     document.documentElement.setAttribute('os', 'chromeos');
 
   // Decorate the existing elements in the document.
   cr.ui.decorate('input[pref][type=checkbox]', options.PrefCheckbox);
   cr.ui.decorate('input[pref][type=number]', options.PrefNumber);
   cr.ui.decorate('input[pref][type=radio]', options.PrefRadio);
   cr.ui.decorate('input[pref][type=range]', options.PrefRange);
   cr.ui.decorate('select[pref]', options.PrefSelect);
   cr.ui.decorate('input[pref][type=text]', options.PrefTextField);
   cr.ui.decorate('input[pref][type=url]', options.PrefTextField);
-  ProxyOptions.getInstance().initializePage();
+  DetailsInternetPage.initializeProxySettings();
 
   // TODO(ivankr): remove when http://crosbug.com/20660 is resolved.
   var inputs = document.querySelectorAll('input[pref]');
   for (var i = 0, el; el = inputs[i]; i++) {
     el.addEventListener('keyup', function(e) {
       cr.dispatchSimpleEvent(this, 'change');
     });
   }
 
   Preferences.getInstance().initialize();
   chrome.send('coreOptionsInitialize');
 
-  ProxyOptions.getInstance().visible = true;
+  DetailsInternetPage.showProxySettings();
 }
 
 document.addEventListener('DOMContentLoaded', load);