Check whether aria-expanded attribute is defined

public/web/WebAXEnums.h

Index: public/web/WebAXEnums.h
diff --git a/public/web/WebAXEnums.h b/public/web/WebAXEnums.h
index be747f560947bc1e9f72d04720b0502a8440c113..31b72b8b85b91b2db32264f7461d6f4cb6bebb27 100644
--- a/public/web/WebAXEnums.h
+++ b/public/web/WebAXEnums.h
@@ -203,7 +203,6 @@ enum WebAXRole {
 enum WebAXState {
     WebAXStateBusy,
     WebAXStateChecked,
-    WebAXStateCollapsed,
     WebAXStateEnabled,
     WebAXStateExpanded,
     WebAXStateFocusable,
@@ -233,6 +232,13 @@ enum WebAXTextDirection {
     WebAXTextDirectionBT
 };
 
+// values for aria-expanded attribute

[dmazzoni, 2014/10/29 15:20:52]

Nit: comments should be a complete sentence - capitalize the first letter and
add a period.

+enum WebAXExpanded {
+    WebAXExpandedUndefined = 0,
+    WebAXExpandedCollapsed,
+    WebAXExpandedExpanded
+};
+
 } // namespace blink
 
 #endif