Stop the autosaving session timer on closing Creator

Change-Id: I3b9c791d95d7815a711f72cec08f405fb1cdac7c
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/coreplugin/mainwindow.cpp

@@ -227,6 +227,13 @@ MainWindow::MainWindow() :
 
     statusBar()->setProperty("p_styled", true);
     setAcceptDrops(true);
+
+    m_autoSaveSessionTimer = new QTimer(this);
+    m_autoSaveSessionTimer->setSingleShot(true);
+    m_autoSaveSessionTimer->setInterval(10000);
+    m_autoSaveSessionTimer->start();
+    connect(m_autoSaveSessionTimer, SIGNAL(timeout()),
+            m_coreImpl, SIGNAL(saveSettingsRequested()));
 }
 
 void MainWindow::setSidebarVisible(bool visible)
@@ -372,6 +379,7 @@ void MainWindow::extensionsInitialized()
 
 void MainWindow::closeEvent(QCloseEvent *event)
 {
+    m_autoSaveSessionTimer->stop();
     emit m_coreImpl->saveSettingsRequested();
 
     // Save opened files

src/plugins/coreplugin/mainwindow.h

@@ -232,6 +232,7 @@ private:
     QColor m_overrideColor;
 
     QStringList m_filesToOpenDelayed;
+    QTimer *m_autoSaveSessionTimer;
 };
 
 } // namespace Internal