[mutter] MonitorConfig: Use new UPower API

[Bastien Nocera <hadess src gnome org>]

commit a9a10aaa2070d726c255b035f4664079373f733a
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Oct 21 13:07:36 2013 +0200

    MonitorConfig: Use new UPower API
    
    The "changed" signal was removed. Use "notify" instead
    to track just the lid-is-closed state.

 configure.ac              |    2 +-
 src/core/monitor-config.c |   12 +++++++-----
 2 files changed, 8 insertions(+), 6 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d90d356..75b3829 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,7 +76,7 @@ MUTTER_PC_MODULES="
    xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
    $CLUTTER_PACKAGE >= 1.15.90
    cogl-1.0 >= 1.15.6
-   upower-glib > 0.9.11
+   upower-glib >= 0.99.0
    gnome-desktop-3.0
 "
 
diff --git a/src/core/monitor-config.c b/src/core/monitor-config.c
index 82ea0b1..62c4042 100644
--- a/src/core/monitor-config.c
+++ b/src/core/monitor-config.c
@@ -99,8 +99,9 @@ static gboolean meta_monitor_config_assign_crtcs (MetaConfiguration  *config,
                                                   GPtrArray          *crtcs,
                                                   GPtrArray          *outputs);
 
-static void     power_client_changed_cb (UpClient *client,
-                                         gpointer  user_data);
+static void     power_client_changed_cb (UpClient   *client,
+                                         GParamSpec *pspec,
+                                         gpointer    user_data);
 
 static void
 free_output_key (MetaOutputKey *key)
@@ -232,7 +233,7 @@ meta_monitor_config_init (MetaMonitorConfig *self)
   self->up_client = up_client_new ();
   self->lid_is_closed = up_client_get_lid_is_closed (self->up_client);
 
-  g_signal_connect_object (self->up_client, "changed",
+  g_signal_connect_object (self->up_client, "notify::lid-is-closed",
                            G_CALLBACK (power_client_changed_cb), self, 0);
 }
 
@@ -1344,8 +1345,9 @@ turn_off_laptop_display (MetaMonitorConfig  *self,
 }
 
 static void
-power_client_changed_cb (UpClient *client,
-                         gpointer  user_data)
+power_client_changed_cb (UpClient   *client,
+                         GParamSpec *pspec,
+                         gpointer    user_data)
 {
   MetaMonitorManager *manager = meta_monitor_manager_get ();
   MetaMonitorConfig *self = user_data;