moved to appropriate 'protected' sections all functions wrongly placed in 'public' sections

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56585 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/richtext/richtextstyles.h

@@ -289,11 +289,6 @@ public:
     */
     wxRichTextStyleListBox::wxRichTextStyleType GetStyleType() const;
 
-    /**
-        Returns the HTML for this item.
-    */
-    virtual wxString OnGetItem(size_t n) const;
-
     /**
         Implements left click behaviour, applying the clicked style to the
         wxRichTextCtrl.
@@ -334,6 +329,13 @@ public:
         Updates the list from the associated style sheet.
     */
     void UpdateStyles();
+
+protected:
+
+    /**
+        Returns the HTML for this item.
+    */
+    virtual wxString OnGetItem(size_t n) const;
 };