Expose InlineTextBoxes in the accessibility tree.

public/web/WebAXEnums.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 93 matching lines @@
     WebAXRoleGroup,
     WebAXRoleGrowArea,
     WebAXRoleHeading,
     WebAXRoleHelpTag,
     WebAXRoleHorizontalRule,
     WebAXRoleIgnored,
     WebAXRoleImageMapLink,
     WebAXRoleImageMap,
     WebAXRoleImage,
     WebAXRoleIncrementor,
+    WebAXRoleInlineTextBox,
     WebAXRoleLabel,
     WebAXRoleLegend,
     WebAXRoleLink,
     WebAXRoleListBoxOption,
     WebAXRoleListBox,
     WebAXRoleListItem,
     WebAXRoleListMarker,
     WebAXRoleList,
     WebAXRoleLog,
     WebAXRoleMain,
@@ skipping 77 matching lines @@
     WebAXStatePressed,
     WebAXStateProtected,
     WebAXStateReadonly,
     WebAXStateRequired,
     WebAXStateSelectable,
     WebAXStateSelected,
     WebAXStateVertical,
     WebAXStateVisited,
 };
 
+// Text direction, only used for role=WebAXRoleInlineTextBox.
+enum WebAXTextDirection {
+    WebAXTextDirectionLR,
+    WebAXTextDirectionRL,
+    WebAXTextDirectionTB,
+    WebAXTextDirectionBT
+};
+
 } // namespace WebKit
 
 #endif