Refactor wxTextEntry::AutoComplete() to simply call DoAutoCompleteXXX().

No real changes, just make the public AutoComplete() non-virtual and add
virtual DoAutoCompleteXXX() methods to make it easier to add new public
AutoComplete() overloads in the upcoming commits.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67509 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/textentry.h

@@ -43,8 +43,6 @@ public:
     virtual void SetSelection(long from, long to);
     virtual void GetSelection(long *from, long *to) const;
 
-    virtual bool AutoComplete(const wxArrayString& choices);
-
     virtual bool IsEditable() const;
     virtual void SetEditable(bool editable);
 
@@ -60,6 +58,8 @@ protected:
     virtual bool DoSetMargins(const wxPoint& pt);
     virtual wxPoint DoGetMargins() const;
 
+    virtual bool DoAutoCompleteStrings(const wxArrayString& choices);
+
 private:
     // implement this to return the associated GtkEntry or another widget
     // implementing GtkEditable