Bug 1191529 - Remove JSIdArray and AutoIdArray and replace with Rooted<IdVector>; r=mccr8, r=jonco

* * *
imported patch 2_remove_AutoIdArray_gk

js/ipc/JavaScriptShared.cpp

@@ -729,8 +729,8 @@ JavaScriptShared::Wrap(JSContext* cx, HandleObject aObj, InfallibleTArray<CpowEn
     if (!aObj)
         return true;
 
-    AutoIdArray ids(cx, JS_Enumerate(cx, aObj));
-    if (!ids)
+    Rooted<IdVector> ids(cx, IdVector(cx));
+    if (!JS_Enumerate(cx, aObj, &ids))
         return false;
 
     RootedId id(cx);