Revert of Reset Screen moved to ScreenContext.

chrome/browser/resources/chromeos/login/oobe_screen_reset_confirmation_overlay.js

 // Copyright 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.
 
 cr.define('reset', function() {
 
-  var USER_ACTION_RESET_CONFIRM_DISMISSED = 'reset-confirm-dismissed';
   /**
    * ResetScreenConfirmationOverlay class
    * Encapsulated handling of the 'Confirm reset device' overlay OOBE page.
    * @class
    */
   function ConfirmResetOverlay() {
   }
 
   cr.addSingletonGetter(ConfirmResetOverlay);
 
   ConfirmResetOverlay.prototype = {
     /**
      * Initialize the page.
      */
     initializePage: function() {
       var overlay = $('reset-confirm-overlay');
-      overlay.addEventListener('cancelOverlay', function(e) {
-        $('reset').send(login.Screen.CALLBACK_USER_ACTED,
-                        USER_ACTION_RESET_CONFIRM_DISMISSED);
-        e.stopPropagation();
-      });
+      overlay.addEventListener('cancelOverlay', this.handleDismiss_.bind(this));
+
+      $('reset-confirm-dismiss').addEventListener('click', this.handleDismiss_);
+      $('reset-confirm-commit').addEventListener('click', this.handleCommit_);
+
       $('overlay-reset').removeAttribute('hidden');
     },
+
+    /**
+     * Handles a click on the dismiss button.
+     * @param {Event} e The click event.
+     */
+    handleDismiss_: function(e) {
+      $('reset').isConfirmational = false;
+      $('overlay-reset').setAttribute('hidden', true);
+      e.stopPropagation();
+    },
+
+    /**
+     * Handles a click on the commit button.
+     * @param {Event} e The click event.
+     */
+    handleCommit_: function(e) {
+      $('reset').isConfirmational = false;
+      chrome.send('powerwashOnReset', [$('reset').rollbackChecked]);
+      $('overlay-reset').setAttribute('hidden', true);
+      e.stopPropagation();
+    },
   };
 
   // Export
   return {
     ConfirmResetOverlay: ConfirmResetOverlay
   };
 });