More fixes for PCH-less compilation.

Include declarations for or forward declare more classes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69466 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/richtooltip.h

@@ -16,6 +16,7 @@
 class WXDLLIMPEXP_FWD_CORE wxColour;
 class WXDLLIMPEXP_FWD_CORE wxFont;
 class WXDLLIMPEXP_FWD_CORE wxIcon;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
 
 class wxRichToolTipImpl;
 

src/osx/nonownedwnd_osx.cpp

@@ -13,6 +13,7 @@
 
 #ifndef WX_PRECOMP
     #include "wx/app.h"
+    #include "wx/dcmemory.h"
     #include "wx/log.h"
 #endif // WX_PRECOMP