Include wx/dataobj.h from wx/clipbrd.h.

This is necessary in order to define wxVector<wxDataFormat> at least when
wxVector is std::vector (as in wxUSE_STL==1 build) because vectors of
incomplete types can't be used.

Also removed inclusions of this and other unneeded headers from MSW and OS X
headers and removed a hopefully out of date comment about Mac code being wx
1.xx-based from the latter.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61485 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/clipbrd.h

@@ -1,9 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        clipbrd.h
 // Purpose:     Clipboard functionality.
-//              Note: this functionality is under review, and
-//              is derived from wxWidgets 1.xx code. Please contact
-//              the wxWidgets developers for further information.
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     1998-01-01
@@ -17,21 +14,14 @@
 
 #if wxUSE_CLIPBOARD
 
-#include "wx/list.h"
-#include "wx/module.h"
-#include "wx/dataobj.h"     // for wxDataFormat
-
 #include "wx/osx/core/cfref.h"
 
 //-----------------------------------------------------------------------------
 // wxClipboard
 //-----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_FWD_CORE wxDataObject;
 class WXDLLIMPEXP_CORE wxClipboard : public wxClipboardBase
 {
-    DECLARE_DYNAMIC_CLASS(wxClipboard)
-
 public:
     wxClipboard();
     virtual ~wxClipboard();
@@ -69,6 +59,8 @@ private:
     wxDataObject     *m_data;
     bool              m_open;
     wxCFRef<PasteboardRef> m_pasteboard;
+
+    DECLARE_DYNAMIC_CLASS(wxClipboard)
 };
 
 #endif // wxUSE_CLIPBOARD