[gnome-usage] better-box: Switch to BetterBox written in Vala

[Petr Štětka <pstetka src gnome org>]

commit be1f9a9b697641dc138ed3b2778b7241ff31b6d9
Author: Petr Štětka <pstetka redhat com>
Date:   Wed May 3 14:32:56 2017 +0200

    better-box: Switch to BetterBox written in Vala
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781607#c22

 src/cpu-sub-view.vala    |    2 +-
 src/memory-sub-view.vala |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/cpu-sub-view.vala b/src/cpu-sub-view.vala
index ddc4455..cbaff03 100644
--- a/src/cpu-sub-view.vala
+++ b/src/cpu-sub-view.vala
@@ -56,7 +56,7 @@ namespace Usage
                 no_process_label.hide();
             });
 
-            var better_box = new Better.Box();
+            var better_box = new BetterBox();
             better_box.max_width_request = 600;
             better_box.halign = Gtk.Align.CENTER;
             better_box.orientation = Gtk.Orientation.HORIZONTAL;
diff --git a/src/memory-sub-view.vala b/src/memory-sub-view.vala
index d531c79..63e9872 100644
--- a/src/memory-sub-view.vala
+++ b/src/memory-sub-view.vala
@@ -56,7 +56,7 @@ namespace Usage
                 no_process_label.hide();
             });
 
-            var better_box = new Better.Box();
+            var better_box = new BetterBox();
             better_box.max_width_request = 600;
             better_box.halign = Gtk.Align.CENTER;
             better_box.orientation = Gtk.Orientation.HORIZONTAL;