Move IDLs to 39 roll

modules/serviceworkers/ServiceWorkerGlobalScope.idl

Index: modules/serviceworkers/ServiceWorkerGlobalScope.idl
diff --git a/modules/serviceworkers/ServiceWorkerGlobalScope.idl b/modules/serviceworkers/ServiceWorkerGlobalScope.idl
index be99abc1108d52ca20ba539f58e9bf87b8e048a4..10d9a9b052911823427667cb81c3b67cd9c19375 100644
--- a/modules/serviceworkers/ServiceWorkerGlobalScope.idl
+++ b/modules/serviceworkers/ServiceWorkerGlobalScope.idl
@@ -37,15 +37,16 @@
 
   readonly attribute ServiceWorkerClients clients;
   [CallWith=ExecutionContext, Unforgeable] readonly attribute ScalarValueString scope;
-  // FIXME: Rename this once it's ready for testing.
-  [CallWith=ExecutionContext, Unforgeable, ImplementedAs=caches] readonly attribute CacheStorage nativeCaches;
+  [CallWith=ExecutionContext, Unforgeable, RuntimeEnabled=ServiceWorkerOnFetch] readonly attribute CacheStorage caches;
 
   [CallWith=ScriptState] Promise fetch(DOMString request, optional Dictionary requestInitDict);
   [CallWith=ScriptState] Promise fetch(Request request, optional Dictionary requestInitDict);
 
+  [RaisesException] void close();
+
   attribute EventHandler onactivate;
-  attribute EventHandler onfetch;
+  [RuntimeEnabled=ServiceWorkerOnFetch] attribute EventHandler onfetch;
   attribute EventHandler oninstall;
   attribute EventHandler onmessage;
-  attribute EventHandler onsync;
+  [RuntimeEnabled=BackgroundSync] attribute EventHandler onsync;
 };