[epiphany/wip/exalm/eventbox] header-bar: Make sure GtkEventBox passes events through

[Alexander Mikhaylenko <alexm src gnome org>]

commit df2b41c7a5b7db9e158247632d25236bdf65f6e0
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Aug 20 01:46:16 2020 +0500

    header-bar: Make sure GtkEventBox passes events through
    
    By default it eats touch events, preventing window dragging on touch.

 src/ephy-header-bar.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/ephy-header-bar.c b/src/ephy-header-bar.c
index c451351d1..cbcc25e28 100644
--- a/src/ephy-header-bar.c
+++ b/src/ephy-header-bar.c
@@ -208,6 +208,7 @@ ephy_header_bar_constructed (GObject *object)
   }
 
   event_box = gtk_event_box_new ();
+  gtk_widget_add_events (event_box, GDK_ALL_EVENTS_MASK);
   gtk_widget_show (event_box);
   gtk_header_bar_set_custom_title (GTK_HEADER_BAR (header_bar), event_box);
   gtk_widget_set_name (event_box, "title-box-container");