use DECLARE_NO_COPY_CLASS() where applicable (patch 633384)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18525 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mstream.h

@@ -40,6 +40,8 @@ protected:
 
 private:
     size_t m_length;
+
+    DECLARE_NO_COPY_CLASS(wxMemoryInputStream)
 };
 
 class WXDLLEXPORT wxMemoryOutputStream : public wxOutputStream
@@ -64,6 +66,8 @@ protected:
     size_t OnSysWrite(const void *buffer, size_t nbytes);
     off_t OnSysSeek(off_t pos, wxSeekMode mode);
     off_t OnSysTell() const;
+
+    DECLARE_NO_COPY_CLASS(wxMemoryOutputStream)
 };
 
 #endif