Fixed compilation if wxUSE_NEW_GRID and wxUSE_GRID are both set to 0

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10511 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/gridctrl.cpp

@@ -19,6 +19,9 @@
     #pragma hdrstop
 #endif
 
+
+#if wxUSE_GRID || wxUSE_NEW_GRID 
+
 #ifndef WX_PRECOMP
     #include "wx/textctrl.h"
     #include "wx/dc.h"
@@ -386,3 +389,4 @@ wxGridCellAutoWrapStringRenderer::GetBestSize(wxGrid& grid,
     return wxSize(width,height);
 }
 
+#endif