[gnome-games] ui: Fix a typo

[Adrien Plazas <aplazas src gnome org>]

commit 81fa7f33c772472dc5dc0f1b2e4ead360d128289
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Feb 26 20:36:28 2017 +0100

    ui: Fix a typo
    
    Rename on_fullscrren_changed to on_fullscreen_changed.

 data/ui/display-header-bar.ui  |    4 ++--
 src/ui/display-header-bar.vala |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/data/ui/display-header-bar.ui b/data/ui/display-header-bar.ui
index 4cfe3bf..aae8f8d 100644
--- a/data/ui/display-header-bar.ui
+++ b/data/ui/display-header-bar.ui
@@ -5,8 +5,8 @@
     <property name="visible">True</property>
     <property name="can_focus">False</property>
     <property name="title" translatable="yes">Games</property>
-    <signal name="notify::is-fullscreen" handler="on_fullscrren_changed"/>
-    <signal name="notify::can-fullscreen" handler="on_fullscrren_changed"/>
+    <signal name="notify::is-fullscreen" handler="on_fullscreen_changed"/>
+    <signal name="notify::can-fullscreen" handler="on_fullscreen_changed"/>
     <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 5978498..9376da8 100644
--- a/src/ui/display-header-bar.vala
+++ b/src/ui/display-header-bar.vala
@@ -36,7 +36,7 @@ private class Games.DisplayHeaderBar : Gtk.HeaderBar {
        }
 
        [GtkCallback]
-       private void on_fullscrren_changed () {
+       private void on_fullscreen_changed () {
                fullscreen.visible = can_fullscreen && !is_fullscreen;
                restore.visible = can_fullscreen && is_fullscreen;
        }