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headers and removed a hopefully out of date comment about Mac code being wx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

src/common/clipcmn.cpp

@@ -41,29 +41,9 @@ IMPLEMENT_DYNAMIC_CLASS(wxClipboardEvent,wxEvent)
 
 wxDEFINE_EVENT( wxEVT_CLIPBOARD_CHANGED, wxClipboardEvent );
 
-// notice that ctors are defined here and not inline to avoid having to include
-// wx/dataobj.h from wx/clipbrd.h
-wxClipboardEvent::wxClipboardEvent(wxEventType evtType)
-    : wxEvent(0, evtType)
-{
-}
-
-wxClipboardEvent::wxClipboardEvent(const wxClipboardEvent& event)
-    : wxEvent(event),
-      m_formats(event.m_formats)
-{
-}
-
-wxEvent* wxClipboardEvent::Clone() const
-{
-    return new wxClipboardEvent(*this);
-}
-
 bool wxClipboardEvent::SupportsFormat( const wxDataFormat &format ) const
 {
 #ifdef __WXGTK20__
-    // GTK has an asynchronous API which reports the supported formats one by
-    // one. We may have to add X11 and Motif later.
     for (wxVector<wxDataFormat>::size_type n = 0; n < m_formats.size(); n++)
     {
         if (m_formats[n] == format)