Comment on common code between THistoryComboBox.DropDown and TIECustomComboBox.DropDown

Source commit: 2e9d0a701486ca709d41878bf7a255f33f98219f

source/packages/filemng/IEComboBox.pas

@@ -213,6 +213,7 @@ begin
       Self.Perform(CB_SETDROPPEDWIDTH, FDropDownFixedWidth, 0)
     else
   begin
+    // The same code is in THistoryComboBox.DropDown
     ItemWidth := GetMaxItemWidth + ScaleByPixelsPerInch(8);
     if Items.Count > DropDownCount then
       Inc(ItemWidth, GetSystemMetrics(SM_CXVSCROLL));