[gnome-control-center] power: stop using deprecated up_client_get_devices

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 3d686de41c68bca8d268bcc67fdd2112ee9015e6
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Tue Dec 4 16:47:31 2018 -0500

    power: stop using deprecated up_client_get_devices
    
    and bump required upower version to 0.99.8 which
    introduced up_client_get_devices2
    
    This is a follow-up from
    https://gitlab.gnome.org/GNOME/gnome-control-center/merge_requests/82

 meson.build                   | 4 ++--
 panels/power/cc-power-panel.c | 6 +-----
 2 files changed, 3 insertions(+), 7 deletions(-)
---
diff --git a/meson.build b/meson.build
index f344112b0..e97f53afe 100644
--- a/meson.build
+++ b/meson.build
@@ -127,7 +127,7 @@ libxml_dep = dependency('libxml-2.0')
 polkit_gobject_dep = dependency('polkit-gobject-1', version: '>= 0.103')
 pulse_dep = dependency('libpulse', version: pulse_req_version)
 pulse_mainloop_dep = dependency('libpulse-mainloop-glib', version: pulse_req_version)
-upower_glib_dep = dependency('upower-glib', version: '>= 0.99.6')
+upower_glib_dep = dependency('upower-glib', version: '>= 0.99.8')
 x11_dep = dependency('x11')
 xi_dep = dependency('xi', version: '>= 1.2')
 
@@ -294,4 +294,4 @@ output += '     NetworkManager (Network panel) ............. ' + host_is_linux.t
 output += '     Wacom (Wacom tablet panel) ................. ' + host_is_linux_not_s390.to_string() + '\n'
 output += '     Wayland .................................... ' + enable_wayland.to_string() + '\n'
 
-message(output)
\ No newline at end of file
+message(output)
diff --git a/panels/power/cc-power-panel.c b/panels/power/cc-power-panel.c
index 71801637c..e5982b978 100644
--- a/panels/power/cc-power-panel.c
+++ b/panels/power/cc-power-panel.c
@@ -2629,11 +2629,7 @@ cc_power_panel_init (CcPowerPanel *self)
   g_signal_connect (self->up_client, "device-added", G_CALLBACK (up_client_device_added), self);
   g_signal_connect (self->up_client, "device-removed", G_CALLBACK (up_client_device_removed), self);
 
-  self->devices = up_client_get_devices (self->up_client);
-  /* up_client_get_devices doesn't set a free function, we'll set it so we don't need to do it.
-   * https://bugs.freedesktop.org/show_bug.cgi?id=106740
-   */
-  g_ptr_array_set_free_func (self->devices, g_object_unref);
+  self->devices = up_client_get_devices2 (self->up_client);
   for (i = 0; self->devices != NULL && i < self->devices->len; i++) {
     UpDevice *device = g_ptr_array_index (self->devices, i);
     g_signal_connect (G_OBJECT (device), "notify",