Encapsulate setDesktopSize() in VNCServerST

More encapsulation of functions that require coordinate between
clients.
diff --git a/common/rfb/VNCServerST.h b/common/rfb/VNCServerST.h
index eff52d0..54443e1 100644
--- a/common/rfb/VNCServerST.h
+++ b/common/rfb/VNCServerST.h
@@ -125,6 +125,10 @@
     void pointerEvent(VNCSConnectionST* client, const Point& pos, int buttonMask);
     void clientCutText(const char* str, int len);
 
+    unsigned int setDesktopSize(VNCSConnectionST* requester,
+                                int fb_width, int fb_height,
+                                const ScreenSet& layout);
+
     // closeClients() closes all RFB sessions, except the specified one (if
     // any), and logs the specified reason for closure.
     void closeClients(const char* reason, network::Socket* sock);
@@ -204,8 +208,6 @@
     Region getPendingRegion();
     const RenderedCursor* getRenderedCursor();
 
-    void notifyScreenLayoutChange(VNCSConnectionST *requester);
-
     bool getComparerState();
 
     KeyRemapper* keyRemapper;