Try to fix issues on Ubuntu/Unity for dialogs which are not displayed: adding...

Try to fix issues on Ubuntu/Unity for dialogs which are not displayed: adding GetSizer()->Fit( this ) in some other dialogs

eeschema/dialogs/dialog_print_using_printer.cpp

@@ -197,7 +197,10 @@ void DIALOG_PRINT_USING_PRINTER::OnInitDialog( wxInitDialogEvent& event )
     pageSetupDialogData.GetPrintData().SetOrientation( pageInfo.GetWxOrientation() );
 
     if ( GetSizer() )
+    {
         GetSizer()->SetSizeHints( this );
+        GetSizer()->Fit( this );
+    }
 
     // Rely on the policy in class DIALOG_SHIM, which centers the dialog
     // initially during a runtime session but gives user the ability to move it in

eeschema/sheet.cpp

@@ -62,10 +62,12 @@ bool SCH_EDIT_FRAME::EditSheet( SCH_SHEET* aSheet, wxDC* aDC )
      * column from being sized correctly.  It doesn't cause any problems
      * on win32 so it doesn't need to wrapped in ugly #ifdef __WXGTK__
      * #endif.
+     * Still presen in wxWidgets 3.0.2
      */
     dlg.Layout();
     dlg.Fit();
     dlg.SetMinSize( dlg.GetSize() );
+    dlg.GetSizer()->Fit( &dlg );
 
     if( dlg.ShowModal() == wxID_CANCEL )
         return false;