AX checked state changes

third_party/WebKit/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 239 matching lines @@
 // Sort direction, only used for roles = WebAXRoleRowHeader and
 // WebAXRoleColumnHeader.
 enum WebAXSortDirection {
   kWebAXSortDirectionUndefined = 0,
   kWebAXSortDirectionNone,
   kWebAXSortDirectionAscending,
   kWebAXSortDirectionDescending,
   kWebAXSortDirectionOther
 };
 
+enum WebAXCheckedState {
+  WebAXCheckedFalse = 0,
+  WebAXCheckedTrue,
+  WebAXCheckedMixed
+};
+
 // Expanded State.
 // These values must match blink::AccessibilityExpanded values.
 // Enforced in AssertMatchingEnums.cpp.
 enum WebAXExpanded {
   kWebAXExpandedUndefined = 0,
   kWebAXExpandedCollapsed,
   kWebAXExpandedExpanded
 };
 
 // These values must match blink::AccessibilityOrientation values.
@@ skipping 110 matching lines @@
 // empty vector.
 enum class WebAXObjectVectorAttribute {
   kAriaControls,
   kAriaDetails,
   kAriaFlowTo,
 };
 
 }  // namespace blink
 
 #endif