Bug 1893376 - have XPCOM GetAccessibleFor return GetAccessibleEvenIfNotInMap when getting an Accessible for a DOM node; r=Jamie

This allows tests to get an Accessible for an HTML area element, since area elements are special and are not in the DocAccessible node map.

Differential Revision: https://phabricator.services.mozilla.com/D209614

accessible/xpcom/xpcAccessibilityService.cpp

@@ -123,7 +123,8 @@ xpcAccessibilityService::GetAccessibleFor(nsINode* aNode,
 
   DocAccessible* document = accService->GetDocAccessible(aNode->OwnerDoc());
   if (document) {
-    NS_IF_ADDREF(*aAccessible = ToXPC(document->GetAccessible(aNode)));
+    NS_IF_ADDREF(*aAccessible =
+                     ToXPC(document->GetAccessibleEvenIfNotInMap(aNode)));
   }
 
   return NS_OK;

testing/web-platform/meta/html-aam/fragile/area-role.html.ini

@@ -1,3 +0,0 @@
-[area-role.html]
-  [el-area]
-    expected: FAIL