Use multiline attribute to check for IA2_STATE_MULTILINE.

chrome/test/data/extensions/api_test/automation/tests/tabs/mixins.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.
 
 var ActiveDescendantMixin = [ 'activedescendant' ];
 var LinkMixins = [ 'url' ];
 var DocumentMixins = [ 'docUrl',
                        'docTitle',
                        'docLoaded',
                        'docLoadingProgress' ];
@@ skipping 67 matching lines @@
 
     var ariaLink = links[1];
     assertEq('ARIA link', ariaLink.name);
     assertTrue('url' in ariaLink, 'ariaLink should have a url attribute');
     assertEq('', ariaLink.url);
     chrome.test.succeed();
   },
 
   function testEditableTextMixins() {
     var textFields = rootNode.findAll({ role: 'textField' });
-    assertEq(2, textFields.length);
+    assertEq(3, textFields.length);
     var EditableTextMixins = [ 'textSelStart', 'textSelEnd' ];
     for (var i = 0; i < textFields.length; i++) {
       var textField = textFields[i];
       var id = textField.attributes.id;
       for (var j = 0; j < EditableTextMixins.length; j++) {
         var mixinAttribute = EditableTextMixins[j];
         assertTrue(mixinAttribute in textField,
                    'textField (' + id + ') should have a ' + mixinAttribute +
                    ' attribute');
       }
     }
     var input = textFields[0];
     assertEq('text-input', input.attributes.id);
     assertEq(2, input.textSelStart);
     assertEq(8, input.textSelEnd);
 
-    var ariaTextbox = textFields[1];
-    assertEq('textbox-role', ariaTextbox.attributes.id);
-    assertEq(0, ariaTextbox.textSelStart);
-    assertEq(0, ariaTextbox.textSelEnd);
-
-    var textArea = rootNode.find({ role: 'textArea' });
-    assertFalse(textArea == null, 'Should find a textArea in the page');
+    var textArea = textFields[1];
     assertEq('textarea', textArea.attributes.id);
     for (var i = 0; i < EditableTextMixins.length; i++) {
       var mixinAttribute = EditableTextMixins[i];
       assertTrue(mixinAttribute in textArea,
                  'textArea should have a ' + mixinAttribute + ' attribute');
     }
     assertEq(0, textArea.textSelStart);
     assertEq(0, textArea.textSelEnd);
 
+    var ariaTextbox = textFields[2];
+    assertEq('textbox-role', ariaTextbox.attributes.id);
+    assertEq(0, ariaTextbox.textSelStart);
+    assertEq(0, ariaTextbox.textSelEnd);
+
     chrome.test.succeed();
   },
 
   function testRangeMixins() {
     var sliders = rootNode.findAll({ role: 'slider' });
     assertEq(2, sliders.length);
     var spinButtons = rootNode.findAll({ role: 'spinButton' });
     assertEq(1, spinButtons.length);
     var progressIndicators = rootNode.findAll({ role: 'progressIndicator' });
     assertEq(1, progressIndicators.length);
@@ skipping 107 matching lines @@
                               TableMixins,
                               TableCellMixins);
     for (var mixinAttr in allMixins) {
       assertFalse(mixinAttr in div);
     }
     chrome.test.succeed();
   }
 ];
 
 setUpAndRunTests(allTests, 'mixins.html');