Make ChromeVox use child-index based offsets again for selection.

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs b/chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs
index 1bcc45ea687c549b486dcf8849c5216a987e11ae..534079fb0947c80c080cb3bdfae27530d5467624 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/cursors_test.extjs
@@ -347,7 +347,7 @@ TEST_F('CursorsTest', 'SingleDocSelection', function() {
         assertEquals(link.firstChild, root.anchorObject);
         assertEquals(0, root.anchorOffset);
         assertEquals(link.firstChild, root.focusObject);
-        assertEquals(16, root.focusOffset);
+        assertEquals(1, root.focusOffset);
         this.listenOnce(root, 'textSelectionChanged', verifySel);
         multiSel.select();
       } else {
@@ -381,16 +381,14 @@ TEST_F('CursorsTest', 'MultiLineOffsetSelection', function() {
     secondLineCursor = new cursors.Cursor(secondLine, 1);
     assertEquals(7, secondLineCursor.selectionIndex_);
 
-    // Now, try selecting via node offsets. This defaults to index 0 and not
-    // index in parent because Blink accessibility selection doesn't always
-    // work.
+    // Now, try selecting via node offsets.
     var cursor = new cursors.Cursor(root.firstChild, -1);
-    assertEquals(root.firstChild, cursor.selectionNode_);
+    assertEquals(root, cursor.selectionNode_);
     assertEquals(0, cursor.selectionIndex_);
 
     cursor = new cursors.Cursor(root.firstChild.nextSibling, -1);
-    assertEquals(root.firstChild.nextSibling, cursor.selectionNode_);
-    assertEquals(0, cursor.selectionIndex_);
+    assertEquals(root, cursor.selectionNode_);
+    assertEquals(1, cursor.selectionIndex_);
   });
 });