Plug QMimeData leaks in QXcbClipboard

QXcbClipboard failed to delete the various QMimeData instances
it owns.

For m_xClipboard, where the two QXcbClipboardMime instances are
never the same, fix the leak by using a scoped instead of a
naked pointer.

For m_clientClipboard, where the two QMimeData could be identical
objects, keep the naked pointers, but delete the objects manually
in the QXcbClipboard destructor, paying attention to the case
where they're the same object.

Change-Id: I5ce0e3e8fcec068aeb344ca806cdf2667378e946
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions