Working proof of concept of select to speak

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 27 matching lines @@
     layout_complete,           // Web
     live_region_changed,       // Web
     load_complete,             // Web
     location_changed,          // Web
     menu_end,                  // Native / Win
     menu_list_item_selected,   // Web
     menu_list_value_changed,   // Web
     menu_popup_end,            // Native / Win
     menu_popup_start,          // Native / Win
     menu_start,                // Native / Win
+    mouse_pressed,
+    mouse_dragged,
+    mouse_released,
+    mouse_moved,
+    mouse_entered,
+    mouse_exited,
     row_collapsed,             // Web / Mac
     row_count_changed,         // Web / Mac
     row_expanded,              // Web / Mac
     scroll_position_changed,   // Web
     scrolled_to_anchor,        // Web
     selected_children_changed, // Web
     selection,                 // Native
     selection_add,             // Native
     selection_remove,          // Native
     show,                      // Remove: http://crbug.com/392502
@@ skipping 385 matching lines @@
   };
 
   [cpp_enum_prefix_override="ax"] enum AXDescriptionFrom {
     description_from_uninitialized = 0,
     description_from_attribute,
     description_from_contents,
     description_from_placeholder,
     description_from_related_element
   };
 };