xcb: remove confusing indirections for qt selection owner

This makes it more obvious that clipboard and DnD use the
same selection owner (QXcbConnection::qtSelectionOwner()).

This way we can also drop some QT_NO_CLIPBOARD defines.
These defines actually are broken, but that is out-of-scope
for this patch.

And renamed the functions according to Qt guidelines:

getSelectionOwner()   -> selectionOwner()
getQtSelectionOwner() -> qtSelectionOwner()

The previous naming probably was influenced by underlying
C API - xcb_get_selection_owner().

Change-Id: I467f1a3dbe75b4e8fd41c7e66ca9b0e25ef1039c
Reviewed-by: Liang Qi <liang.qi@qt.io>

0 files changed, 0 insertions, 0 deletions