optimize

window_size/lib/src/window_size_channel.dart

@@ -126,7 +126,7 @@ class WindowSizeChannel {
       const MethodChannel(_windowSizeChannelName);
 
   /// The static instance of the menu channel.
-  static final WindowSizeChannel instance = new WindowSizeChannel._();
+  static final WindowSizeChannel instance = WindowSizeChannel._();
 
   /// Returns a list of screens.
   Future<List<Screen>> getScreenList() async {