[gnome-games] display-header-bar: Bind show-close-button in xml

[Alexander Mikhaylenko <alexm src gnome org>]

commit 100259fa36595d08b121e016e4a0f4cde1fcde79
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Tue Jan 28 19:34:54 2020 +0500

    display-header-bar: Bind show-close-button in xml

 data/ui/display-header-bar.ui  | 2 +-
 src/ui/display-header-bar.vala | 5 +----
 2 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/data/ui/display-header-bar.ui b/data/ui/display-header-bar.ui
index 4b231928..a8dbba47 100644
--- a/data/ui/display-header-bar.ui
+++ b/data/ui/display-header-bar.ui
@@ -15,7 +15,7 @@
           <object class="GtkHeaderBar" id="ingame_header_bar">
             <property name="visible">True</property>
             <property name="title" bind-source="GamesDisplayHeaderBar" bind-property="game-title" 
bind-flags="bidirectional"/>
-            <property name="show_close_button">True</property>
+            <property name="show-close-button" bind-source="GamesDisplayHeaderBar" 
bind-property="show-title-buttons" bind-flags="bidirectional|sync-create"/>
             <child>
               <object class="GtkButton" id="back">
                 <property name="visible">True</property>
diff --git a/src/ui/display-header-bar.vala b/src/ui/display-header-bar.vala
index fde9ec92..f98221f5 100644
--- a/src/ui/display-header-bar.vala
+++ b/src/ui/display-header-bar.vala
@@ -8,10 +8,7 @@ private class Games.DisplayHeaderBar : Gtk.Bin {
        private MediaMenuButton media_button;
 
        public string game_title { get; set; }
-
-       public bool show_title_buttons {
-               set { ingame_header_bar.show_close_button = value; }
-       }
+       public bool show_title_buttons { get; set; default = true; }
 
        public bool can_fullscreen { get; set; }
        public bool is_fullscreen { get; set; }