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/html/htmlcell.h

@@ -146,6 +146,8 @@ protected:
             // true if this cell can be placed on pagebreak, false otherwise
     wxString m_id;
             // unique identifier of the cell, generated from "id" property of tags
+
+    DECLARE_NO_COPY_CLASS(wxHtmlCell)
 };
 
 
@@ -259,6 +261,8 @@ protected:
     int m_LastLayout;
             // if != -1 then call to Layout may be no-op
             // if previous call to Layout has same argument
+
+    DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
 };
 
 
@@ -330,6 +334,8 @@ protected:
     wxWindow* m_Wnd;
     int m_WidthFloat;
             // width float is used in adjustWidth (it is in percents)
+
+    DECLARE_NO_COPY_CLASS(wxHtmlWidgetCell)
 };