changes to make wxWindow::FindFocus work as expected with composite controls

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29540 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mgl/window.cpp

@@ -742,7 +742,7 @@ void wxWindowMGL::KillFocus()
 // this wxWindowBase function is implemented here (in platform-specific file)
 // because it is static and so couldn't be made virtual
 // ----------------------------------------------------------------------------
-wxWindow *wxWindowBase::FindFocus()
+wxWindow *wxWindowBase::DoFindFocus()
 {
     return (wxWindow*)gs_focusedWindow;
 }