[gnome-system-monitor] Make LoadGraph non-copyable.

[Robert Roth <robertroth src gnome org>]

commit 44782d04e0848f0cf5414459450969177f99f89b
Author: Benoît Dejean <bdejean gmail com>
Date:   Wed Apr 23 12:32:04 2014 +0200

    Make LoadGraph non-copyable.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=742070

 src/load-graph.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/load-graph.h b/src/load-graph.h
index 7d09f33..c726945 100644
--- a/src/load-graph.h
+++ b/src/load-graph.h
@@ -5,6 +5,8 @@
 #include <glib.h>
 #include <glibtop/cpu.h>
 
+#include "util.h"
+
 enum
 {
     LOAD_GRAPH_CPU,
@@ -31,6 +33,7 @@ struct LoadGraphLabels
 };
 
 struct LoadGraph
+  : private procman::NonCopyable
 {
     static const unsigned NUM_POINTS = 60 + 2;
     static const unsigned GRAPH_MIN_HEIGHT = 40;