[glibmm] Gio::Application: Use std::mutex instead of Glib::Threads::Mutex.

[Murray Cumming <murrayc src gnome org>]

commit 27bef8caaab860803ffdd0cd2214390488ff886b
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Nov 26 20:36:59 2015 +0100

    Gio::Application: Use std::mutex instead of Glib::Threads::Mutex.
    
    And std::unique_lock instead of Glib::Threads::Mutex::Lock.
    Some of these could probably be replaced by std::lock_guard, in
    a smaller scope, instead of using release(), but this is a simpler
    replacement.

 gio/src/application.ccg |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/gio/src/application.ccg b/gio/src/application.ccg
index 9a854a5..e63aef9 100644
--- a/gio/src/application.ccg
+++ b/gio/src/application.ccg
@@ -190,7 +190,7 @@ OptionArgCallbackDataMap option_arg_callback_data;
 
 // Gio::Application instances may be used in different threads.
 // Accesses to option_arg_callback_data must be thread-safe.
-Glib::Threads::Mutex option_arg_callback_data_mutex;
+std::mutex option_arg_callback_data_mutex;
 
 gboolean Application_option_arg_callback(const gchar* option_name, const gchar* value,
   gpointer /* data */, GError** error)
@@ -199,7 +199,7 @@ gboolean Application_option_arg_callback(const gchar* option_name, const gchar*
 
   // option_name is either a single dash followed by a single letter (for a
   // short name) or two dashes followed by a long option name.
-  Glib::Threads::Mutex::Lock lock(option_arg_callback_data_mutex);
+  std::unique_lock<std::mutex> lock(option_arg_callback_data_mutex);
   OptionArgCallbackDataMap::const_iterator iterFind = option_arg_callback_data.end();
   if (option_name[1] == '-')
   {
@@ -284,7 +284,7 @@ Application::Application(const Glib::ustring& application_id, ApplicationFlags f
 Application::~Application()
 {
   // Delete all OptionArgCallbackData instances that belong to this application.
-  Glib::Threads::Mutex::Lock lock(option_arg_callback_data_mutex);
+  std::lock_guard<std::mutex> lock(option_arg_callback_data_mutex);
   OptionArgCallbackDataMap::iterator iter = option_arg_callback_data.begin();
   while (iter != option_arg_callback_data.end())
   {
@@ -396,7 +396,7 @@ void Application::add_main_option_entry(
   gchar short_name, const Glib::ustring& description,
   const Glib::ustring& arg_description, int flags)
 {
-  Glib::Threads::Mutex::Lock lock(option_arg_callback_data_mutex);
+  std::unique_lock<std::mutex> lock(option_arg_callback_data_mutex);
   OptionArgCallbackDataMap::iterator iterFind = option_arg_callback_data.find(long_name);
   if (iterFind != option_arg_callback_data.end())
     return; // Ignore duplicates
@@ -414,7 +414,7 @@ void Application::add_main_option_entry_filename(
   gchar short_name, const Glib::ustring& description,
   const Glib::ustring& arg_description, int flags)
 {
-  Glib::Threads::Mutex::Lock lock(option_arg_callback_data_mutex);
+  std::unique_lock<std::mutex> lock(option_arg_callback_data_mutex);
   OptionArgCallbackDataMap::iterator iterFind = option_arg_callback_data.find(long_name);
   if (iterFind != option_arg_callback_data.end())
     return; // Ignore duplicates