[gnote] Replace std::string by Glib::ustring in Preferences

[Aurimas Černius <aurimasc src gnome org>]

commit ca25a860924e5a324fa1c46566ba2f6deb19273a
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sat Feb 4 20:01:58 2017 +0200

    Replace std::string by Glib::ustring in Preferences

 src/preferences.cpp |    6 +++---
 src/preferences.hpp |    7 +++----
 2 files changed, 6 insertions(+), 7 deletions(-)
---
diff --git a/src/preferences.cpp b/src/preferences.cpp
index 4168ac5..6bc5baf 100644
--- a/src/preferences.cpp
+++ b/src/preferences.cpp
@@ -1,7 +1,7 @@
 /*
  * gnote
  *
- * Copyright (C) 2011-2015 Aurimas Cernius
+ * Copyright (C) 2011-2015,2017 Aurimas Cernius
  * Copyright (C) 2009 Hubert Figuiere
  *
  * This program is free software: you can redistribute it and/or modify
@@ -88,9 +88,9 @@ namespace gnote {
     m_schemas[SCHEMA_KEYBINDINGS] = Gio::Settings::create(SCHEMA_KEYBINDINGS);
   }
   
-  Glib::RefPtr<Gio::Settings> Preferences::get_schema_settings(const std::string & schema)
+  Glib::RefPtr<Gio::Settings> Preferences::get_schema_settings(const Glib::ustring & schema)
   {
-    std::map<std::string, Glib::RefPtr<Gio::Settings> >::iterator iter = m_schemas.find(schema);
+    auto iter = m_schemas.find(schema);
     if(iter != m_schemas.end()) {
       return iter->second;
     }
diff --git a/src/preferences.hpp b/src/preferences.hpp
index 8b4bdd1..a2707be 100644
--- a/src/preferences.hpp
+++ b/src/preferences.hpp
@@ -1,7 +1,7 @@
 /*
  * gnote
  *
- * Copyright (C) 2011-2015 Aurimas Cernius
+ * Copyright (C) 2011-2015,2017 Aurimas Cernius
  * Copyright (C) 2009 Hubert Figuiere
  *
  * This program is free software: you can redistribute it and/or modify
@@ -25,7 +25,6 @@
 #define __PREFERENCES_HPP_
 
 #include <map>
-#include <string>
 #include <sigc++/signal.h>
 #include <giomm/settings.h>
 
@@ -93,10 +92,10 @@ namespace gnote {
 
     Preferences();
 
-    Glib::RefPtr<Gio::Settings> get_schema_settings(const std::string & schema);
+    Glib::RefPtr<Gio::Settings> get_schema_settings(const Glib::ustring & schema);
   private:
     Preferences(const Preferences &); // non implemented
-    std::map<std::string, Glib::RefPtr<Gio::Settings> > m_schemas;
+    std::map<Glib::ustring, Glib::RefPtr<Gio::Settings> > m_schemas;
   };