Make IDL Callbacks non-refcounted by default

Source/modules/quota/StorageQuota.h

 /*
  * Copyright (C) 2011 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 36 matching lines @@
     enum Type {
         Temporary,
         Persistent,
     };
 
     static PassRefPtr<StorageQuota> create(Type type)
     {
         return adoptRef(new StorageQuota(type));
     }
 
-    void queryUsageAndQuota(ExecutionContext*, PassRefPtr<StorageUsageCallback>, PassRefPtr<StorageErrorCallback>);
+    void queryUsageAndQuota(ExecutionContext*, PassOwnPtr<StorageUsageCallback>, PassOwnPtr<StorageErrorCallback>);
 
-    void requestQuota(ExecutionContext*, unsigned long long newQuotaInBytes, PassRefPtr<StorageQuotaCallback>, PassRefPtr<StorageErrorCallback>);
+    void requestQuota(ExecutionContext*, unsigned long long newQuotaInBytes, PassOwnPtr<StorageQuotaCallback>, PassOwnPtr<StorageErrorCallback>);
 
     ~StorageQuota();
 
 private:
     explicit StorageQuota(Type);
     Type m_type;
 };
 
 } // namespace WebCore
 
 #endif // StorageQuota_h