Fix CvoxBrailleUtilUnitTest.TextFieldSelection

chrome/browser/resources/chromeos/chromevox/common/braille_util_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.
 
 // Include test fixture.
 GEN_INCLUDE(['../testing/chromevox_unittest_base.js']);
 
 /**
  * Test fixture.
  * @constructor
@@ skipping 188 matching lines @@
 
 /**
  * @export
  */
 TEST_F('CvoxBrailleUtilUnitTest', 'TextFieldSelection', function() {
   this.loadHtml(
       '<input id="1" type="text" value="strawberry">'
       );
 
   var inputElem = $('1');
+  inputElem.focus();
   var input = cvox.CursorSelection.fromNode(inputElem);
 
   // Selection.
   inputElem.selectionStart = 2;
   inputElem.selectionEnd = 5;
   this.assertBrailleEquals(
       {text: ': strawberry edtxt',
        startIndex: 4,
        endIndex: 7
       }, this.getBraille_(input, input));
@@ skipping 172 matching lines @@
   selectionSpan = s.getSpanInstanceOf(cvox.BrailleUtil.ValueSelectionSpan);
   assertEquals(5, s.getSpanStart(selectionSpan));
   assertEquals(5, s.getSpanEnd(selectionSpan));
 
   // All of the value selected selected with reversed start and end.
   s = cvox.BrailleUtil.createValue('value', 5, 0);
   selectionSpan = s.getSpanInstanceOf(cvox.BrailleUtil.ValueSelectionSpan);
   assertEquals(0, s.getSpanStart(selectionSpan));
   assertEquals(5, s.getSpanEnd(selectionSpan));
 });