[epiphany] Fix adblock permission constantly toggling between yes and no

[Michael Catanzaro <mcatanzaro src gnome org>]

commit a5a52220f93741188c5b032c414e17d6d0378bdb
Author: Jan-Michael Brummer <jan brummer tabos org>
Date:   Thu Apr 4 20:23:07 2019 +0200

    Fix adblock permission constantly toggling between yes and no

 lib/widgets/ephy-security-popover.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/lib/widgets/ephy-security-popover.c b/lib/widgets/ephy-security-popover.c
index 1ef4e4652..867b09350 100644
--- a/lib/widgets/ephy-security-popover.c
+++ b/lib/widgets/ephy-security-popover.c
@@ -392,7 +392,7 @@ on_ad_combobox_changed (GtkComboBox         *widget,
   GSettings *web_settings = ephy_settings_get (EPHY_PREFS_WEB_SCHEMA);
   EphyPermissionsManager *permissions_manager;
   EphyPermission permission = EPHY_PERMISSION_UNDECIDED;
-  gboolean global_flag = !g_settings_get_boolean (web_settings, EPHY_PREFS_WEB_ENABLE_ADBLOCK);
+  gboolean global_flag = g_settings_get_boolean (web_settings, EPHY_PREFS_WEB_ENABLE_ADBLOCK);
   g_autofree gchar *origin = NULL;
   gboolean state = gtk_combo_box_get_active (widget) == 1;
 
@@ -403,7 +403,7 @@ on_ad_combobox_changed (GtkComboBox         *widget,
   permissions_manager = ephy_embed_shell_get_permissions_manager (ephy_embed_shell_get_default ());
 
   if (global_flag != state)
-    permission = state ? EPHY_PERMISSION_PERMIT : EPHY_PERMISSION_DENY;
+    permission = state ? EPHY_PERMISSION_DENY : EPHY_PERMISSION_PERMIT;
 
   ephy_permissions_manager_set_permission (permissions_manager,
                                            EPHY_PERMISSION_TYPE_SHOW_ADS,