a7b0910566
And make these only handled on wayland. There's a plethora of issues around touch passive grab and touch/pointer doubly handling to use these right away on X11, so we stick to single-touch/pointer there. This reverts commit 032a688a72110c7f7b976a5b3bd03c3feab32646. https://bugzilla.gnome.org/show_bug.cgi?id=750287