nsIDirectoryServiceProvider2
An extension of nsIDirectoryServiceProvider which allows
multiple files to be returned for the given key.
getFiles
Directory Service calls this when it gets a request for
a prop and the requested type is nsISimpleEnumerator.
| prop | The symbolic name of the file list. |
| ode NS_SUCCESS_AGGREGATE_RESULT if this result should be aggregated with other "lower" providers. |