[gsettings-desktop-schemas] input-sources: add a GSettings key for the MRU input sources

[Cosimo Cecchi <cosimoc src gnome org>]

commit b866971b0acdc30a605dbfd7837f87d6a228e898
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Tue May 24 11:58:53 2016 -0700

    input-sources: add a GSettings key for the MRU input sources
    
    The shell will save the MRU list here when switching input source.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766826

 .../org.gnome.desktop.input-sources.gschema.xml.in |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/schemas/org.gnome.desktop.input-sources.gschema.xml.in 
b/schemas/org.gnome.desktop.input-sources.gschema.xml.in
index 40aaf98..7b028eb 100644
--- a/schemas/org.gnome.desktop.input-sources.gschema.xml.in
+++ b/schemas/org.gnome.desktop.input-sources.gschema.xml.in
@@ -27,6 +27,14 @@
         IBus won't be used.
       </description>
     </key>
+    <key name="mru-sources" type="a(ss)">
+      <default>[]</default>
+      <summary>List of most recently used input sources</summary>
+      <description>
+        List of most recently used input sources. The value is in the
+        same format as the available sources list.
+      </description>
+    </key>
     <key name="xkb-options" type="as">
       <default>[]</default>
       <summary>List of XKB options</summary>