Vendor dependencies for 0.3.0 release

vendor/winit/tests/sync_object.rs

@@ -0,0 +1,28 @@
+#[allow(dead_code)]
+fn needs_sync<T: Sync>() {}
+
+#[test]
+fn event_loop_proxy_send() {
+    #[allow(dead_code)]
+    fn is_send<T: 'static + Send>() {
+        // ensures that `winit::EventLoopProxy<T: Send>` implements `Sync`
+        needs_sync::<winit::event_loop::EventLoopProxy<T>>();
+    }
+}
+
+#[test]
+fn window_sync() {
+    // ensures that `winit::Window` implements `Sync`
+    needs_sync::<winit::window::Window>();
+}
+
+#[test]
+fn window_builder_sync() {
+    needs_sync::<winit::window::WindowAttributes>();
+}
+
+#[test]
+fn custom_cursor_sync() {
+    needs_sync::<winit::window::CustomCursorSource>();
+    needs_sync::<winit::window::CustomCursor>();
+}