[gtk+] example: Use popover for gears menu

[Matthias Clasen <matthiasc src gnome org>]

commit c923ea9bc45711ae1fb9cd9d543c969d6b241efd
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Apr 17 12:43:17 2014 -0700

    example: Use popover for gears menu

 examples/application10/window.ui |    1 +
 examples/application8/window.ui  |    1 +
 examples/application9/window.ui  |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/examples/application10/window.ui b/examples/application10/window.ui
index 97a502a..f0cbb1d 100644
--- a/examples/application10/window.ui
+++ b/examples/application10/window.ui
@@ -55,6 +55,7 @@
             <child>
               <object class="GtkMenuButton" id="gears">
                 <property name="visible">True</property>
+                <property name="use-popover">True</property>
                 <style>
                   <class name="image-button"/>
                 </style>
diff --git a/examples/application8/window.ui b/examples/application8/window.ui
index 674327d..6f588a1 100644
--- a/examples/application8/window.ui
+++ b/examples/application8/window.ui
@@ -41,6 +41,7 @@
             <child>
               <object class="GtkMenuButton" id="gears">
                 <property name="visible">True</property>
+                <property name="use-popover">True</property>
                 <style>
                   <class name="image-button"/>
                 </style>
diff --git a/examples/application9/window.ui b/examples/application9/window.ui
index 0713c36..1d5f521 100644
--- a/examples/application9/window.ui
+++ b/examples/application9/window.ui
@@ -58,6 +58,7 @@
             <child>
               <object class="GtkMenuButton" id="gears">
                 <property name="visible">True</property>
+                <property name="use-popover">True</property>
                 <style>
                   <class name="image-button"/>
                 </style>