[mutter] monitor: Add meta_monitor_get_gpu()

[Jonas Ådahl <jadahl src gnome org>]

commit 802f7dcd307cad41f49a397d1a284fb2bad2e3b0
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon Jul 24 17:16:38 2017 +0800

    monitor: Add meta_monitor_get_gpu()
    
    Add API to get what GPU drives this monitor.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785381

 src/backends/meta-monitor.c |    8 ++++++++
 src/backends/meta-monitor.h |    2 ++
 2 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/meta-monitor.c b/src/backends/meta-monitor.c
index ee85044..50a545b 100644
--- a/src/backends/meta-monitor.c
+++ b/src/backends/meta-monitor.c
@@ -180,6 +180,14 @@ meta_monitor_generate_spec (MetaMonitor *monitor)
   priv->spec = monitor_spec;
 }
 
+MetaGpu *
+meta_monitor_get_gpu (MetaMonitor *monitor)
+{
+  MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor);
+
+  return priv->gpu;
+}
+
 GList *
 meta_monitor_get_outputs (MetaMonitor *monitor)
 {
diff --git a/src/backends/meta-monitor.h b/src/backends/meta-monitor.h
index 0026bb0..e11dfc2 100644
--- a/src/backends/meta-monitor.h
+++ b/src/backends/meta-monitor.h
@@ -101,6 +101,8 @@ MetaMonitorNormal * meta_monitor_normal_new (MetaGpu    *gpu,
 
 MetaMonitorSpec * meta_monitor_get_spec (MetaMonitor *monitor);
 
+MetaGpu * meta_monitor_get_gpu (MetaMonitor *monitor);
+
 gboolean meta_monitor_is_active (MetaMonitor *monitor);
 
 MetaOutput * meta_monitor_get_main_output (MetaMonitor *monitor);