Use correct position when setting pos_in_set for tabs.

ui/views/controls/table/table_view.cc

 // Copyright (c) 2012 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 "ui/views/controls/table/table_view.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 425 matching lines @@
 
 void TableView::GetAccessibleNodeData(ui::AXNodeData* node_data) {
   node_data->role = ui::AX_ROLE_TABLE;
   node_data->AddStateFlag(ui::AX_STATE_READ_ONLY);
   node_data->AddIntAttribute(ui::AX_ATTR_SET_SIZE, RowCount());
 
   if (selection_model_.active() != ui::ListSelectionModel::kUnselectedIndex) {
     // Get information about the active item, this is not the same as the set
     // of selected items (of which there could be more than one).
     node_data->role = ui::AX_ROLE_ROW;
-    node_data->AddIntAttribute(ui::AX_ATTR_POS_IN_SET,
-                               selection_model_.active());
+    node_data->AddValidatedIntAttribute(ui::AX_ATTR_INDEX_IN_SET,
+                                        selection_model_.active());
     if (selection_model_.IsSelected(selection_model_.active())) {
       node_data->AddStateFlag(ui::AX_STATE_SELECTED);
     }
 
     std::vector<base::string16> name_parts;
     for (const VisibleColumn& visible_column : visible_columns_) {
       base::string16 value = model_->GetText(
           selection_model_.active(), visible_column.column.id);
       if (!value.empty()) {
         name_parts.push_back(visible_column.column.title);
@@ skipping 491 matching lines @@
   if (tooltip)
     *tooltip = text;
   if (tooltip_origin) {
     tooltip_origin->SetPoint(cell_bounds.x(),
                              cell_bounds.y() + kTextVerticalPadding);
   }
   return true;
 }
 
 }  // namespace views