Make IDL Callbacks non-refcounted by default

Source/modules/quota/StorageInfo.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 38 matching lines @@
     enum {
         TEMPORARY,
         PERSISTENT,
     };
 
     static PassRefPtr<StorageInfo> create()
     {
         return adoptRef(new StorageInfo());
     }
 
-    void queryUsageAndQuota(ExecutionContext*, int storageType, PassRefPtr<StorageUsageCallback>, PassRefPtr<StorageErrorCallback>);
+    void queryUsageAndQuota(ExecutionContext*, int storageType, PassOwnPtr<StorageUsageCallback>, PassOwnPtr<StorageErrorCallback>);
 
-    void requestQuota(ExecutionContext*, int storageType, unsigned long long newQuotaInBytes, PassRefPtr<StorageQuotaCallback>, PassRefPtr<StorageErrorCallback>);
+    void requestQuota(ExecutionContext*, int storageType, unsigned long long newQuotaInBytes, PassOwnPtr<StorageQuotaCallback>, PassOwnPtr<StorageErrorCallback>);
 
     ~StorageInfo();
 
 private:
     StorageInfo();
 
     StorageQuota* getStorageQuota(int storageType);
 
     mutable RefPtr<StorageQuota> m_temporaryStorage;
     mutable RefPtr<StorageQuota> m_persistentStorage;
 };
 
 } // namespace WebCore
 
 #endif // StorageInfo_h