HTML Ruby tag is not exposed on Windows

content/renderer/accessibility/blink_ax_enum_conversion.cc

 // Copyright (c) 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 "content/renderer/accessibility/blink_ax_enum_conversion.h"
 
 #include "base/logging.h"
 
 namespace content {
 
@@ skipping 238 matching lines @@
     case blink::WebAXRoleRadioButton:
       return ui::AX_ROLE_RADIO_BUTTON;
     case blink::WebAXRoleRadioGroup:
       return ui::AX_ROLE_RADIO_GROUP;
     case blink::WebAXRoleRegion:
       return ui::AX_ROLE_REGION;
     case blink::WebAXRoleRootWebArea:
       return ui::AX_ROLE_ROOT_WEB_AREA;
     case blink::WebAXRoleRow:
       return ui::AX_ROLE_ROW;
+    case blink::WebAXRoleRuby:
+      return ui::AX_ROLE_RUBY;
     case blink::WebAXRoleRowHeader:
       return ui::AX_ROLE_ROW_HEADER;
     case blink::WebAXRoleRuler:
       return ui::AX_ROLE_RULER;
     case blink::WebAXRoleRulerMarker:
       return ui::AX_ROLE_RULER_MARKER;
     case blink::WebAXRoleSVGRoot:
       return ui::AX_ROLE_SVG_ROOT;
     case blink::WebAXRoleScrollArea:
       return ui::AX_ROLE_SCROLL_AREA;
@@ skipping 139 matching lines @@
     case blink::WebAXTextDirectionBT:
       return ui::AX_TEXT_DIRECTION_BT;
     default:
       NOTREACHED();
   }
 
   return ui::AX_TEXT_DIRECTION_NONE;
 }
 
 }  // namespace content