Unmanaged clients should be also only deleted using special functions.

svn path=/branches/work/kwin_composite/; revision=623830

toplevel.h

@@ -28,7 +28,6 @@ class Toplevel
     Q_OBJECT
     public:
         Toplevel( Workspace *ws );
-        virtual ~Toplevel();
         Window handle() const;
         Workspace* workspace() const;
         QRect geometry() const;
@@ -67,6 +66,7 @@ class Toplevel
         QRegion damage() const;
         void resetDamage( const QRect& r );
     protected:
+        virtual ~Toplevel();
         void setHandle( Window id );
         void detectShape( Window id );
         void damageNotifyEvent( XDamageNotifyEvent* e );

unmanaged.h

@@ -24,7 +24,6 @@ class Unmanaged
     Q_OBJECT
     public:
         Unmanaged( Workspace *ws );
-        virtual ~Unmanaged();
         bool windowEvent( XEvent* e );
         void release();
         bool track( Window w );
@@ -34,6 +33,7 @@ class Unmanaged
     protected:
         virtual void debug( kdbgstream& stream ) const;
     private:
+        virtual ~Unmanaged(); // use release()
     // handlers for X11 events
         void mapNotifyEvent( XMapEvent* e );
         void unmapNotifyEvent( XUnmapEvent*e );