[gnome-system-monitor] Save window size properly

[Matthias Clasen <matthiasc src gnome org>]

commit 721c6f2ad817d28a53a953edee6149b5dd09df0f
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 17 23:43:00 2016 -0500

    Save window size properly
    
    This is following the current best practice as layed out in
    https://wiki.gnome.org/HowDoI/SaveWindowState. It is important
    to use gtk_window_get_size, otherwise the window will grow
    under Wayland.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=762231

 src/application.cpp |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/application.cpp b/src/application.cpp
index f6138d3..fb22d38 100644
--- a/src/application.cpp
+++ b/src/application.cpp
@@ -283,8 +283,7 @@ GsmApplication::save_config ()
     int width, height, xpos, ypos;
     gboolean maximized;
 
-    width  = gdk_window_get_width (gtk_widget_get_window (main_window));
-    height = gdk_window_get_height (gtk_widget_get_window (main_window));
+    gtk_widget_get_size (main_window, &width, &height);
     gtk_window_get_position (GTK_WINDOW (main_window), &xpos, &ypos);
 
     maximized = gdk_window_get_state (gtk_widget_get_window (main_window)) & GDK_WINDOW_STATE_MAXIMIZED;