Bug 1863466: Support details and error message relations for RemoteAccessible. r=morgan

Differential Revision: https://phabricator.services.mozilla.com/D192916

accessible/base/CacheConstants.h

@@ -82,6 +82,10 @@ static constexpr RelationData kRelationTypeAtoms[] = {
      RelationType::DESCRIPTION_FOR},
     {nsGkAtoms::aria_flowto, nullptr, RelationType::FLOWS_TO,
      RelationType::FLOWS_FROM},
+    {nsGkAtoms::aria_details, nullptr, RelationType::DETAILS,
+     RelationType::DETAILS_FOR},
+    {nsGkAtoms::aria_errormessage, nullptr, RelationType::ERRORMSG,
+     RelationType::ERRORMSG_FOR},
 };
 
 // The count of numbers needed to serialize an nsRect. This is used when

accessible/generic/LocalAccessible.cpp

@@ -1497,7 +1497,9 @@ void LocalAccessible::DOMAttributeChanged(int32_t aNameSpaceID,
   }
 
   if (aAttribute == nsGkAtoms::aria_controls ||
-      aAttribute == nsGkAtoms::aria_flowto) {
+      aAttribute == nsGkAtoms::aria_flowto ||
+      aAttribute == nsGkAtoms::aria_details ||
+      aAttribute == nsGkAtoms::aria_errormessage) {
     mDoc->QueueCacheUpdate(this, CacheDomain::Relations);
   }
 

accessible/tests/browser/e10s/browser_caching_relations.js

@@ -18,6 +18,8 @@ const attrRelationsSpec = [
   ["aria-describedby", RELATION_DESCRIBED_BY, RELATION_DESCRIPTION_FOR],
   ["aria-controls", RELATION_CONTROLLER_FOR, RELATION_CONTROLLED_BY],
   ["aria-flowto", RELATION_FLOWS_TO, RELATION_FLOWS_FROM],
+  ["aria-details", RELATION_DETAILS, RELATION_DETAILS_FOR],
+  ["aria-errormessage", RELATION_ERRORMSG, RELATION_ERRORMSG_FOR],
 ];
 
 /**