[dconf-editor] Make a method protected.

[Arnaud B. <arnaudb src gnome org>]

commit 9b9d9ab5f54073b2ce4bf4e697d6ed052c92bea6
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Thu Jan 10 13:43:58 2019 +0100

    Make a method protected.
    
    We do not need to make toggle_hamburger_menu virtual.
    Instead, rely on a protected toggle_view_menu method.

 editor/base-headerbar.vala  | 5 ++++-
 editor/dconf-headerbar.vala | 4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/editor/base-headerbar.vala b/editor/base-headerbar.vala
index 2a45a37..4340e5b 100644
--- a/editor/base-headerbar.vala
+++ b/editor/base-headerbar.vala
@@ -121,11 +121,14 @@ private class BaseHeaderBar : NightTimeAwareHeaderBar, AdaptativeWidget
             info_button.active = false;
     }
 
-    internal virtual void toggle_hamburger_menu ()
+    internal void toggle_hamburger_menu ()
     {
         if (info_button.visible)
             info_button.active = !info_button.active;
+        else
+            toggle_view_menu ();
     }
+    protected virtual void toggle_view_menu () {}
 
     /*\
     * * modes
diff --git a/editor/dconf-headerbar.vala b/editor/dconf-headerbar.vala
index 8503753..184e731 100644
--- a/editor/dconf-headerbar.vala
+++ b/editor/dconf-headerbar.vala
@@ -166,12 +166,12 @@ private class DConfHeaderBar : BookmarksHeaderBar, AdaptativeWidget
     * * hamburger menu
     \*/
 
-    internal override void toggle_hamburger_menu ()
+    protected override void toggle_view_menu ()
     {
         if (modifications_actions_button.visible)
             modifications_actions_button.active = !modifications_actions_button.active;
         else
-            base.toggle_hamburger_menu ();
+            base.toggle_view_menu ();
     }
 
     protected override void populate_menu (ref GLib.Menu menu)