Oilpan: enable Oilpan by default in modules/quota.

Source/modules/quota/StorageQuota.idl

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 enum StorageType {
     "temporary",
     "persistent"
 };
 
 [
-    WillBeGarbageCollected,
+    GarbageCollected,
     NoInterfaceObject,
     RuntimeEnabled=QuotaPromise
 ] interface StorageQuota {
     readonly attribute StorageType[] supportedTypes;
     [CallWith=ExecutionContext] Promise queryInfo(StorageType type);
     [CallWith=ScriptState] Promise requestPersistentQuota([Clamp] unsigned long long newQuota);
 };