Make HTML5 <mark> accessible.

content/browser/accessibility/browser_accessibility_win.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 "content/browser/accessibility/browser_accessibility_win.h"
 
 #include <UIAutomationClient.h>
 #include <UIAutomationCoreApi.h>
 
 #include "base/strings/string_number_conversions.h"
@@ skipping 4085 matching lines @@
       }
       break;
     case ui::AX_ROLE_LIST_ITEM:
       ia_role = ROLE_SYSTEM_LISTITEM;
       ia_state |= STATE_SYSTEM_READONLY;
       break;
     case ui::AX_ROLE_MAIN:
       ia_role = ROLE_SYSTEM_GROUPING;
       ia2_role = IA2_ROLE_PARAGRAPH;
       break;
+    case ui::AX_ROLE_MARK:
+      ia_role = ROLE_SYSTEM_TEXT;
+      ia2_role = IA2_ROLE_TEXT_FRAME;
+      break;
     case ui::AX_ROLE_MARQUEE:
       ia_role = ROLE_SYSTEM_ANIMATION;
       break;
     case ui::AX_ROLE_MATH:
       ia_role = ROLE_SYSTEM_EQUATION;
       break;
     case ui::AX_ROLE_MENU:
     case ui::AX_ROLE_MENU_BUTTON:
       ia_role = ROLE_SYSTEM_MENUPOPUP;
       break;
@@ skipping 236 matching lines @@
     ia2_role = ia_role;
 
   win_attributes_->ia_role = ia_role;
   win_attributes_->ia_state = ia_state;
   win_attributes_->role_name = role_name;
   win_attributes_->ia2_role = ia2_role;
   win_attributes_->ia2_state = ia2_state;
 }
 
 }  // namespace content