fix docs for wxWindow::Layout (fixes #4297)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56894 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/panel.h

@@ -96,6 +96,12 @@ public:
     */
     virtual void InitDialog();
 
+    /**
+        See wxWindow::SetAutoLayout(): when auto layout is on, this function gets
+        called automatically when the window is resized.
+    */
+    virtual bool Layout();
+
     /**
         The default handler for wxEVT_SYS_COLOUR_CHANGED.