Added the aria-sort state to the accessibility tree.

ui/accessibility/ax_node_data.cc

 // Copyright 2013 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/accessibility/ax_node_data.h"
 
 #include <set>
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ skipping 170 matching lines @@
         break;
       case AX_ATTR_TABLE_HEADER_ID:
         result += " header_id=" + value;
         break;
       case AX_ATTR_TABLE_ROW_HEADER_ID:
         result += " row_header_id=" + value;
         break;
       case AX_ATTR_TABLE_ROW_INDEX:
         result += " row_index=" + value;
         break;
+      case AX_ATTR_SORT_DIRECTION:
+        switch (int_attributes[i].second) {
+          case AX_SORT_DIRECTION_UNSORTED:
+            result += " sort_direction=none";
+            break;
+          case AX_SORT_DIRECTION_ASCENDING:
+            result += " sort_direction=ascending";
+            break;
+          case AX_SORT_DIRECTION_DESCENDING:
+            result += " sort_direction=descending";
+            break;
+          case AX_SORT_DIRECTION_OTHER:
+            result += " sort_direction=other";
+            break;
+        }
+        break;
       case AX_ATTR_TITLE_UI_ELEMENT:
         result += " title_elem=" + value;
         break;
       case AX_ATTR_ACTIVEDESCENDANT_ID:
         result += " activedescendant=" + value;
         break;
       case AX_ATTR_COLOR_VALUE_RED:
         result += " color_value_red=" + value;
         break;
       case AX_ATTR_COLOR_VALUE_GREEN:
@@ skipping 234 matching lines @@
     }
   }
 
   if (!child_ids.empty())
     result += " child_ids=" + IntVectorToString(child_ids);
 
   return result;
 }
 
 }  // namespace ui