+2019-11-10  Tom Tromey  <tom@tromey.com>
+
+       * tui/tui-wingeneral.c (tui_unhighlight_win): Use can_box.
+       (tui_highlight_win): Likewise.
+       (tui_win_info::check_and_display_highlight_if_needed): Likewise.
+       * tui/tui-data.h (struct tui_win_info) <can_highlight>: Remove.
+       * tui/tui-command.h (struct tui_cmd_window) <tui_cmd_window>:
+       Don't set can_highlight.
+
 2019-11-10  Tom Tromey  <tom@tromey.com>
 
        * cli/cli-style.h (class cli_style_option) <cli_style_option>:
 
   tui_cmd_window ()
     : tui_win_info (CMD_WIN)
   {
-    can_highlight = false;
   }
 
   DISABLE_COPY_AND_ASSIGN (tui_cmd_window);
 
   /* Window title to display.  */
   std::string title;
 
-  /* Can this window ever be highlighted?  */
-  bool can_highlight = true;
-
   /* Is this window highlighted?  */
   bool is_highlighted = false;
 };
 
 tui_unhighlight_win (struct tui_win_info *win_info)
 {
   if (win_info != NULL 
-      && win_info->can_highlight
+      && win_info->can_box ()
       && win_info->handle != NULL)
     {
       box_win (win_info, false);
 tui_highlight_win (struct tui_win_info *win_info)
 {
   if (win_info != NULL
-      && win_info->can_highlight
+      && win_info->can_box ()
       && win_info->handle != NULL)
     {
       box_win (win_info, true);
 void
 tui_win_info::check_and_display_highlight_if_needed ()
 {
-  if (can_highlight)
+  if (can_box ())
     {
       if (is_highlighted)
        tui_highlight_win (this);