[ActiveSuggestionMarker #2.5] Handle ActiveSuggestionMarkers for accessibility

ui/accessibility/ax_enums.idl

 // Copyright 2014 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.
 
 // TODO(nektar): Migrate entire file to Mojoq.
 // These should be kept in sync with third_party/WebKit/public/web/WebAXEnums.h
 // until the Chromium and Blink trees are merged.
 [camel_case_enum_to_string=true] namespace ui {
 
   // For new entries to the following four enums, also add to
@@ skipping 515 matching lines @@
     // For all text fields and content editable roots: A list of the start
     // offsets of each line inside this object.
     cached_line_starts,
 
     // For inline text. These int lists must be the same size; they represent
     // the start and end character offset of each word within this text.
     word_starts,
     word_ends
   };
 
+  // TODO(dmazzoni, nektar): make this list not grow exponentially as new
+  // MarkerTypes are added
   enum AXMarkerType {
     // Assignments are ignored by the parser, but are kept here for clarity.
     spelling = 1,
     grammar = 2,
     spelling_grammar = 3,
     text_match = 4,
     spelling_text_match = 5,
     grammar_text_match = 6,
-    spelling_grammar_text_match = 7
+    spelling_grammar_text_match = 7,
+    // DocumentMarker::MarkerType::Composition = 8 is ignored for accessibility
+    // purposes
+    active_suggestion = 16,
+    spelling_active_suggestion = 17,
+    grammar_active_suggestion = 18,
+    spelling_grammar_active_suggestion = 19,
+    text_match_active_suggestion = 20,
+    spelling_text_match_active_suggestion = 21,
+    grammar_text_match_active_suggestion = 22,
+    spelling_grammar_text_match_active_suggestion = 23
   };
 
   enum AXTextDirection {
     ltr,
     rtl,
     ttb,
     btt
   };
 
   // A Java counterpart will be generated for this enum.
@@ skipping 106 matching lines @@
     // First node is before the second one.
     before,
 
     // Nodes are the same.
     equal,
 
     // First node is after the second one.
     after
   };
 };