function onPointerUpCaptured( tracker, event ) {
        var pointsList = tracker.getActivePointersListByType( getPointerType( event ) );
        if ( pointsList.getById( event.pointerId ) ) {
            handlePointerUp( tracker, event );
        }
        $.stopEvent( event );
    }
Note: Called for both pointer events and legacy mouse events
        ($.MouseTracker.havePointerEvents determines which)

This handler is attached to the window object (on the capture phase) to emulate mouse capture.
onPointerUp is still attached to the tracked element, so stop propagation to avoid processing twice.

@private
@inner