Added usage of ScreenContext in EulaScreen.

ui/login/screen.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.
 
 /**
  * @fileoverview Base class for all login WebUI screens.
  */
 cr.define('login', function() {
   /** @const */ var CALLBACK_USER_ACTED = 'userActed';
   /** @const */ var CALLBACK_CONTEXT_CHANGED = 'contextChanged';
@@ skipping 302 matching lines @@
       Constructor.prototype.name = function() { return id; };
 
       api.contextChanged = function() {
         var screen = $(id);
         screen.contextChanged_.apply(screen, arguments);
       }
 
       api.register = function() {
         var screen = $(id);
         screen.__proto__ = new Constructor();
+        screen.initialize();

[Denis Kuznetsov (DE-MUC), 2014/11/25 17:31:17]

I'd say that initialize() should follow decorate(), not vice versa.

[ygorshenin1, 2014/11/26 11:45:40]

Done.

         screen.decorate();
         Oobe.getInstance().registerScreen(screen);
       };
 
       cr.define('login', function() {
         var result = {};
         result[name] = api;
         return result;
       });
     }
   };
 });