[url_launcher] Mark Link as an invisible factory (flutter#4578)

Author: Harry Terkelsen

packages/url_launcher/url_launcher_web/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.7
+
+* Marks the `Link` widget as invisible so it can be optimized by the engine.
+
 ## 2.0.6
 
 * Removes dependency on `meta`.

packages/url_launcher/url_launcher_web/lib/src/shims/dart_ui_fake.dart

@@ -16,7 +16,8 @@ class platformViewRegistry {
   /// Shim for registerViewFactory
   /// https://github.com/flutter/engine/blob/master/lib/web_ui/lib/ui.dart#L72
   static bool registerViewFactory(
-      String viewTypeId, html.Element Function(int viewId) viewFactory) {
+      String viewTypeId, html.Element Function(int viewId) viewFactory,
+      {bool isVisible = true}) {
     return false;
   }
 }

packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart

@@ -46,7 +46,8 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   /// Registers this class as the default instance of [UrlLauncherPlatform].
   static void registerWith(Registrar registrar) {
     UrlLauncherPlatform.instance = UrlLauncherPlugin();
-    ui.platformViewRegistry.registerViewFactory(linkViewType, linkViewFactory);
+    ui.platformViewRegistry
+        .registerViewFactory(linkViewType, linkViewFactory, isVisible: false);
   }
 
   @override

packages/url_launcher/url_launcher_web/pubspec.yaml

@@ -2,7 +2,7 @@ name: url_launcher_web
 description: Web platform implementation of url_launcher
 repository: https://github.com/flutter/plugins/tree/main/packages/url_launcher/url_launcher_web
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+url_launcher%22
-version: 2.0.6
+version: 2.0.7
 
 environment:
   sdk: ">=2.12.0 <3.0.0"