[gsettings-desktop-schemas/wip/oholy/readonly-lockdown] schemas: Add "disable-writing-to-devices" lockdown option

[Ondrej Holy <oholy src gnome org>]

commit cfe6109b1ffb0dd73eb927fd35183a6f7a264917
Author: Ondrej Holy <oholy redhat com>
Date:   Tue May 14 08:12:59 2019 +0200

    schemas: Add "disable-writing-to-devices" lockdown option
    
    Add lockdown option to prevent the user from writing files to removable
    devices. If enabled, gvfs is going to mount removable devices (i.e. flash
    disks, mobile phones, cameras) as read-only.

 schemas/org.gnome.desktop.lockdown.gschema.xml.in | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/schemas/org.gnome.desktop.lockdown.gschema.xml.in 
b/schemas/org.gnome.desktop.lockdown.gschema.xml.in
index 0150b32..9e97465 100644
--- a/schemas/org.gnome.desktop.lockdown.gschema.xml.in
+++ b/schemas/org.gnome.desktop.lockdown.gschema.xml.in
@@ -71,5 +71,14 @@
         and removing users, as well as changing other users settings.
       </description>
     </key>
+    <key name="disable-writing-to-devices" type="b">
+      <default>false</default>
+      <summary>Disable writing to removable devices</summary>
+      <description>
+        Prevent the user from writing files to removable devices. This will cause
+        that the removable devices (i.e. flash disks, mobile phones, cameras) are
+        going to be mounted as read-only.
+      </description>
+    </key>
   </schema>
 </schemalist>