I suppose this was introduced after an API freeze to try
to support on-disk buffering but since the code does not
set the GST_PLAY_FLAG_DOWNLOAD flag on the player element
the feature is not only undocumented but also nonfunctional.
If on-disk buffering is needed we should add proper
API to enable/disable it for all backends which might
be possible with Qt 5.1 the earliest.
Change-Id: I6b42a06166509db0023a3e0263ecc3a36f0d2bdb
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
78ce69d3dd