Use multiline attribute to check for IA2_STATE_MULTILINE.

chrome/test/data/extensions/api_test/automation/tests/unit/test.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.
 
 chrome.test.runWithModuleSystem(function(moduleSystem) {
   window.AutomationRootNode =
       moduleSystem.require('automationNode').AutomationRootNode;
   window.privates = moduleSystem.privates;
   // Unused.
   window.automationUtil = function() {};
@@ skipping 280 matching lines @@
           'intAttributes': { 'scrollY': 583,
                              'scrollYMax': 9336 },
           'childIds': [2, 3]
         },
         {
           'id': 2, 'role': 'textField',
           'intAttributes': { 'textSelStart': 10, 'textSelEnd': 20 },
           'childIds': []
         },
         {
-          'id': 3, 'role': 'textArea',
+          'id': 3, 'role': 'textField',
           'childIds': []
         },
 
     ] };
 
     var tree = new AutomationRootNode();
     assertTrue(privates(tree).impl.unserialize(update));
     assertEq(true, tree.docLoaded);
     assertFalse('textSelStart' in tree);
     assertFalse('textSelEnd' in tree);
@@ skipping 186 matching lines @@
     assertEq(1, cell4.tableCellColumnIndex);
     assertEq(1, cell4.tableCellColumnSpan);
     assertEq(1, cell4.tableCellRowIndex);
     assertEq(1, cell4.tableCellRowSpan);
 
     succeed();
   }
 ];
 
 chrome.test.runTests(tests);