[gnome-control-center] color: set min-content-height on the profiles list

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

commit 12ddb730d6a9ddc09d083f88c7ca818a31107fb2
Author: Sebastien Bacher <seb128 ubuntu com>
Date:   Wed Sep 20 11:47:42 2017 +0200

    color: set min-content-height on the profiles list
    
    otherwise there is only space for one line to be displayed
    https://bugzilla.gnome.org/show_bug.cgi?id=787931

 panels/color/color.ui |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/panels/color/color.ui b/panels/color/color.ui
index 4ccb6e0..27b4098 100644
--- a/panels/color/color.ui
+++ b/panels/color/color.ui
@@ -702,6 +702,8 @@
                 <property name="can_focus">True</property>
                 <property name="hscrollbar_policy">never</property>
                 <property name="shadow_type">in</property>
+                <property name="hscrollbar-policy">GTK_POLICY_NEVER</property>
+                <property name="min-content-height">300</property>
                 <child>
                   <object class="GtkTreeView" id="treeview_assign">
                     <property name="visible">True</property>