Bug 1726695: Add support for RemoteAccessible's in MsaaAccessible::get_accName r=Jamie

Differential Revision: https://phabricator.services.mozilla.com/D123258

accessible/windows/msaa/MsaaAccessible.cpp

@@ -966,12 +966,9 @@ MsaaAccessible::get_accName(
   if (accessible) {
     return accessible->get_accName(kVarChildIdSelf, pszName);
   }
-  if (mAcc->IsRemote()) {
-    return E_NOTIMPL;  // XXX Not supported for RemoteAccessible yet.
-  }
 
   nsAutoString name;
-  LocalAcc()->Name(name);
+  Acc()->Name(name);
 
   // The name was not provided, e.g. no alt attribute for an image. A screen
   // reader may choose to invent its own accessible name, e.g. from an image src