gst/gstindex.h (GstIndex): Add field for user_data_destroy. We don't have a dispose...

gst/gstindex.h (GstIndex): Add field for user_data_destroy. We don't have a dispose function, so it won't get called ...

Original commit message from CVS:
2005-11-19  Andy Wingo  <wingo@pobox.com>

* gst/gstindex.h (GstIndex): Add field for user_data_destroy. We
don't have a dispose function, so it won't get called when the
object is unreffed, but oh well!

* gst/gstindex.c (gst_index_set_filter_full): New API function,
allows a destroy function to be set so user_data can be freed.
Fixes #168438.
(gst_index_set_filter): Call gst_index_set_filter_full.