Ignore listMarker nodes and sync from left to right after a jump command.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background_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',
              '../../testing/assert_additions.js']);
 
 GEN_INCLUDE(['../../testing/mock_feedback.js']);
 
@@ skipping 793 matching lines @@
       <li tabindex=0>
         <button>ok</button>
       </li>
     </ul>
   */}, function(root) {
     var listItem = root.find({role: RoleType.listItem});
 
     mockFeedback.call(listItem.focus.bind(listItem))
         .expectSpeech('List item')
         .call(this.doCmd('nextObject'))
-        .expectSpeech('•')
-        .call(this.doCmd('previousObject'))
-        .expectSpeech('List item')
-        .call(this.doCmd('nextObject'))
-        .expectSpeech('•')
+        .expectSpeech('Button')
         .call(this.doCmd('previousObject'))
         .expectSpeech('List item')
         .call(this.doCmd('previousObject'))
         .expectSpeech('Edit text')
         .call(this.doCmd('previousObject'))
         .expectSpeech('Group')
         .replay();
   });
 });
 
@@ skipping 70 matching lines @@
         .expectSpeech('Fruits')
         .expectSpeech('with 2 items')
         .expectSpeech('apple')
         .expectSpeech(' 1 of 2 ')
         .call(doCmd('nextObject'))
         .expectSpeech('banana')
         .expectSpeech(' 2 of 2 ')
         .replay();
   });
 });
+
+TEST_F('BackgroundTest', 'ListMarkerIsIgnored', function() {
+  var mockFeedback = this.createMockFeedback();
+  this.runWithLoadedTree(function(root) {/*!
+    <ul><li>apple</ul>
+  */}, function(root) {
+    mockFeedback.call(doCmd('nextObject'))
+        .expectNextSpeechUtteranceIsNot('listMarker')
+        .expectSpeech('apple')
+        .replay();
+  });
+});
+
+TEST_F('BackgroundTest', 'SymetricComplexHeading', function() {
+  var mockFeedback = this.createMockFeedback();
+  this.runWithLoadedTree(function(root) {/*!
+    <h4><p>NW</p><p>NE</p></h4>
+    <h4><p>SW</p><p>SE</p></h4>
+  */}, function(root) {
+    mockFeedback.call(doCmd('nextHeading'))
+        .expectNextSpeechUtteranceIsNot('NE')
+        .expectSpeech('NW')
+        .call(doCmd('previousHeading'))
+        .expectNextSpeechUtteranceIsNot('NE')
+        .expectSpeech('NW')
+        .replay();
+  });
+});