Removing unused roles(7) from chromium.

ui/accessibility/ax_enums.idl

 // 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.
 
 // These should be kept in sync with third_party/WebKit/public/web/WebAXEnums.h
 // until the Chromium and Blink trees are merged.
 [camel_case_enum_to_string=true] namespace ui {
 
   // For new entries to the following three enums, also add to
   // chrome/common/extensions/api/automation.idl.
@@ skipping 52 matching lines @@
   };
 
   enum AXRole {
     alert_dialog,
     alert,
     annotation,
     application,
     article,
     banner,
     blockquote,
-    browser,
     busy_indicator,
     button,
     button_drop_down,
     canvas,
     cell,
     check_box,
     client,
     color_well,
     column_header,
     column,
     combo_box,
     complementary,
     content_info,
     date,
     date_time,
     definition,
     description_list_detail,
     description_list,
     description_list_term,
     desktop,
     details,
     dialog,
     directory,
     disclosure_triangle,
     div,
     document,
-    drawer,
     editable_text,
     embedded_object,
     figcaption,
     figure,
     footer,
     form,
     grid,
     group,
     grow_area,
     heading,
-    help_tag,
     iframe,
     ignored,
     image_map_link,
     image_map,
     image,
     inline_text_box,
     label_text,
     legend,
     link,
     list_box_option,
     list_box,
     list_item,
     list_marker,
     list,
     location_bar,
     log,
     main,
     marquee,
     math,
-    matte,
     menu_bar,
     menu_button,
     menu_item,
     menu_item_check_box,
     menu_item_radio,
     menu_list_option,
     menu_list_popup,
     menu,
     meter,
     navigation,
     note,
     outline,
     pane,
     paragraph,
     pop_up_button,
     pre,
     presentational,
     progress_indicator,
     radio_button,
     radio_group,
     region,
     root_web_area,
     row_header,
     row,
     ruby,
-    ruler_marker,
     ruler,
     svg_root,
     scroll_area,
     scroll_bar,
     seamless_web_area,
     search,
-    sheet,
     slider,
     slider_thumb,
     spin_button_part,
     spin_button,
     split_group,
     splitter,
     static_text,
     status,
-    system_wide,
     tab_group,
     tab_list,
     tab_panel,
     tab,
     table_header_container,
     table,
     text_area,
     text_field,
     time,
     timer,
     title_bar,
     toggle_button,
     toolbar,
     tree_grid,
     tree_item,
     tree,
     unknown,
     tooltip,
-    value_indicator,
     web_area,
     web_view,
     window
   };
 
   // TODO(dmazzoni): switch content/ to use AX_STATE_DISABLED instead of
   // !AX_STATE_ENABLED, and AX_STATE_EDITABLE instead of !AX_STATE_READONLY.
   enum AXState {
     busy,
     checked,
@@ skipping 184 matching lines @@
     word_ends
   };
 
   [cpp_enum_prefix_override="ax"] enum AXTextDirection {
     text_direction_lr,
     text_direction_rl,
     text_direction_tb,
     text_direction_bt
   };
 };