[ActiveSuggestionMarker #2.5] Handle ActiveSuggestionMarkers for accessibility

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 286 matching lines @@
   kWebAXInvalidStateFalse,
   kWebAXInvalidStateTrue,
   kWebAXInvalidStateSpelling,
   kWebAXInvalidStateGrammar,
   kWebAXInvalidStateOther
 };
 
 enum WebAXMarkerType {
   kWebAXMarkerTypeSpelling = 1 << 0,
   kWebAXMarkerTypeGrammar = 1 << 1,
-  kWebAXMarkerTypeTextMatch = 1 << 2
+  kWebAXMarkerTypeTextMatch = 1 << 2,
+  // Skip DocumentMarker::MarkerType::Composition
+  kWebAXMarkerTypeActiveSuggestion = 1 << 4,
 };
 
 // Used for exposing text attributes.
 enum WebAXTextStyle {
   kWebAXTextStyleNone = 0,
   kWebAXTextStyleBold = 1 << 0,
   kWebAXTextStyleItalic = 1 << 1,
   kWebAXTextStyleUnderline = 1 << 2,
   kWebAXTextStyleLineThrough = 1 << 3
 };
@@ skipping 68 matching lines @@
 // empty vector.
 enum class WebAXObjectVectorAttribute {
   kAriaControls,
   kAriaDetails,
   kAriaFlowTo,
 };
 
 }  // namespace blink
 
 #endif