Handles AX role for time element(re-land).

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 101 matching lines @@
     WebAXRoleGrid,
     WebAXRoleGroup,
     WebAXRoleHeading,
     WebAXRoleIframePresentational,
     WebAXRoleIframe,
     WebAXRoleIgnored,
     WebAXRoleImageMapLink,
     WebAXRoleImageMap,
     WebAXRoleImage,
     WebAXRoleInlineTextBox,
+    WebAXRoleInputTime,
     WebAXRoleLabel,
     WebAXRoleLegend,
     WebAXRoleLink,
     WebAXRoleListBoxOption,
     WebAXRoleListBox,
     WebAXRoleListItem,
     WebAXRoleListMarker,
     WebAXRoleList,
     WebAXRoleLog,
     WebAXRoleMain,
@@ skipping 154 matching lines @@
 // because on some platforms this determines how the accessible description
 // is exposed.
 enum WebAXDescriptionFrom {
     WebAXDescriptionFromPlaceholder,
     WebAXDescriptionFromRelatedElement
 };
 
 } // namespace blink
 
 #endif