Reland: Make the check for compat mode explicit.

chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs

 // 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_next_e2e_test_base.js']);
 
 /**
  * Test fixture for cvox2.cursors.
  * @constructor
@@ skipping 285 matching lines @@
 TEST_F('CursorsTest', 'WrappingCursors', function() {
   this.runWithLoadedTree(this.multiInlineDoc, function(root) {
     var para = root.firstChild;
     var cursor = new cursors.WrappingCursor(para, -1);
     cursor = cursor.move(DOM_NODE, DIRECTIONAL, BACKWARD);
     assertEquals(root.lastChild.firstChild, cursor.node);
     cursor = cursor.move(DOM_NODE, DIRECTIONAL, FORWARD);
     assertEquals(root.firstChild.firstChild, cursor.node);
   });
 });
+
+TEST_F('CursorsTest', 'IsInWebRange', function() {
+  this.runWithLoadedTree(this.simpleDoc, function(root) {
+    var para = root.firstChild;
+    var webRange = new cursors.Range.fromNode(para);
+    var auraRange = cursors.Range.fromNode(root.parent);
+    assertFalse(auraRange.isWebRange());
+    assertTrue(webRange.isWebRange());
+  });
+});