[gnome-boxes] selectionbar: Make buttons vertically centered

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 4a56931e52b5671764af7a6a3041e0564e2b0542
Author: Yosef Or Boczko <yoseforb gmail com>
Date:   Mon Sep 2 20:54:08 2013 +0300

    selectionbar: Make buttons vertically centered
    
    https://bugzilla.gnome.org/show_bug.cgi?id=707296

 src/selectionbar.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/selectionbar.vala b/src/selectionbar.vala
index 6c6af72..3e69a26 100644
--- a/src/selectionbar.vala
+++ b/src/selectionbar.vala
@@ -19,6 +19,7 @@ private class Boxes.Selectionbar: Gtk.Revealer {
         favorite_btn = new Gtk.ToggleButton ();
         headerbar.pack_start (favorite_btn);
         favorite_btn.image = new Gtk.Image.from_icon_name ("emblem-favorite-symbolic", Gtk.IconSize.MENU);
+        favorite_btn.valign = Gtk.Align.CENTER;
         favorite_btn.get_style_context ().add_class ("image-button");
         favorite_btn_clicked_handler = favorite_btn.clicked.connect (() => {
            foreach (var item in App.app.selected_items) {
@@ -32,6 +33,7 @@ private class Boxes.Selectionbar: Gtk.Revealer {
         });
 
         pause_btn = new Gtk.Button.with_mnemonic (_("P_ause"));
+        pause_btn.valign = Gtk.Align.CENTER;
         headerbar.pack_start (pause_btn);
         pause_btn.get_style_context ().add_class ("text-button");
         pause_btn.clicked.connect (() => {
@@ -53,6 +55,7 @@ private class Boxes.Selectionbar: Gtk.Revealer {
         });
 
         remove_btn = new Gtk.Button.with_mnemonic (_("_Delete"));
+        remove_btn.valign = Gtk.Align.CENTER;
         headerbar.pack_start (remove_btn);
         remove_btn.get_style_context ().add_class ("text-button");
         remove_btn.clicked.connect (() => {
@@ -60,6 +63,7 @@ private class Boxes.Selectionbar: Gtk.Revealer {
         });
 
         properties_btn = new Gtk.Button.with_mnemonic (_("_Properties"));
+        properties_btn.valign = Gtk.Align.CENTER;
         headerbar.pack_end (properties_btn);
         properties_btn.get_style_context ().add_class ("text-button");
         properties_btn.clicked.connect (() => {