Placement::placeZeroCornered operates on AbstractClient

placement.cpp

@@ -467,7 +467,7 @@ void Placement::placeCentered(Client* c, const QRect& area, Policy /*next*/)
 /*!
   Place windows in the (0,0) corner, on top of all others
 */
-void Placement::placeZeroCornered(Client* c, const QRect& area, Policy /*next*/)
+void Placement::placeZeroCornered(AbstractClient* c, const QRect& area, Policy /*next*/)
 {
     // get the maximum allowed windows space and desk's origin
     c->move(checkArea(c, area).topLeft());

placement.h

@@ -69,7 +69,7 @@ public:
     void placeSmart(Client* c, const QRect& area, Policy next = Unknown);
     void placeMaximizing(Client* c, QRect& area, Policy next = Unknown);
     void placeCentered(Client* c, const QRect& area, Policy next = Unknown);
-    void placeZeroCornered(Client* c, const QRect& area, Policy next = Unknown);
+    void placeZeroCornered(AbstractClient* c, const QRect& area, Policy next = Unknown);
     void placeDialog(Client* c, QRect& area, Policy next = Unknown);
     void placeUtility(Client* c, QRect& area, Policy next = Unknown);
     void placeOnScreenDisplay(Client* c, QRect& area);