[sql] Import reference version of SQLite 3.17..

third_party/sqlite/sqlite-src-3170000/vsixtest/App.xaml.h

+//
+// App.xaml.h
+// Declaration of the App class.
+//
+
+#pragma once
+
+#include "App.g.h"
+
+namespace vsixtest
+{
+        /// <summary>
+        /// Provides application-specific behavior to supplement the default Application class.
+        /// </summary>
+        ref class App sealed
+        {
+        protected:
+                virtual void OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ e) override;
+
+        internal:
+                App();
+
+        private:
+                void OnSuspending(Platform::Object^ sender, Windows::ApplicationModel::SuspendingEventArgs^ e);
+                void OnNavigationFailed(Platform::Object ^sender, Windows::UI::Xaml::Navigation::NavigationFailedEventArgs ^e);
+        };
+}