adjust trusted types binding usage

packages/google_maps_flutter/google_maps_flutter_web/example/pubspec.yaml

@@ -12,13 +12,13 @@ dependencies:
   google_maps_flutter_platform_interface: ^2.4.0
   google_maps_flutter_web:
     path: ../
-  web: "^0.5.0"
+  web: ^0.5.0
 
 dev_dependencies:
   build_runner: ^2.1.1
   flutter_test:
     sdk: flutter
-  google_maps: ^7.0.0
+  google_maps: ^7.1.0
   google_maps_flutter: ^2.2.0 # Needed for projection_test.dart
   http: ">=0.13.0 <2.0.0"
   integration_test:

packages/google_maps_flutter/google_maps_flutter_web/lib/src/convert.dart

@@ -532,14 +532,15 @@ String _sanitizeHtml(String htmlString) {
   try {
     // Firefox and Safari don't support Trusted Types yet.
     // See https://developer.mozilla.org/en-US/docs/Web/API/TrustedTypePolicyFactory#browser_compatibility
-    trustedTypePolicy = window.trustedTypesNullable?.createPolicy(
-      'google_maps_flutter_sanitize',
-      TrustedTypePolicyOptions(
-        createHTML: (String html, JSAny? arguments) {
-          return sanitizeHtml(html);
-        }.toJS,
-      ),
-    );
+    trustedTypePolicy =
+        WindowWithTrustedTypes(window).trustedTypesNullable?.createPolicy(
+              'google_maps_flutter_sanitize',
+              TrustedTypePolicyOptions(
+                createHTML: (String html, JSAny? arguments) {
+                  return sanitizeHtml(html);
+                }.toJS,
+              ),
+            );
   } catch (_) {
     // Fallback to not using the trusted types policy.
   }

packages/google_maps_flutter/google_maps_flutter_web/lib/src/dom_window_extension.dart

@@ -6,9 +6,54 @@ import 'dart:js_interop';
 
 import 'package:web/web.dart';
 
-/// This extension exists to handle unsupported features by certain browsers.
-extension DomWindowExtension on Window {
+/// This extension type exists to handle unsupported features by certain browsers.
+@JS()
+extension type WindowWithTrustedTypes(Window _) implements JSObject {
   /// Get the `trustedTypes` object from the window, if it is supported.
   @JS('trustedTypes')
   external TrustedTypePolicyFactory? get trustedTypesNullable;
 }
+
+// TODO(ditman): remove this extension type when we depend on package:web 0.5.1
+/// This extension exists as a stop gap until `package:web 0.5.1` is released.
+/// That version provides the `TrustedTypes` API.
+@JS()
+extension type TrustedTypePolicyFactory._(JSObject _) implements JSObject {
+  /// Create a new `TrustedTypePolicy` instance
+  /// with the given [policyName] and [policyOptions].
+  external TrustedTypePolicy createPolicy(
+    String policyName, [
+    TrustedTypePolicyOptions policyOptions,
+  ]);
+}
+
+// TODO(ditman): remove this extension type when we depend on package:web 0.5.1
+/// This extension exists as a stop gap until `package:web 0.5.1` is released.
+/// That version provides the `TrustedTypes` API.
+extension type TrustedTypePolicy._(JSObject _) implements JSObject {
+  /// Create a new `TrustedHTML` instance with the given [input] and [arguments].
+  external TrustedHTML createHTML(
+    String input,
+    JSAny? arguments,
+  );
+}
+
+// TODO(ditman): remove this extension type when we depend on package:web 0.5.1
+/// This extension exists as a stop gap until `package:web 0.5.1` is released.
+/// That version provides the `TrustedTypes` API.
+@JS()
+extension type TrustedTypePolicyOptions._(JSObject _) implements JSObject {
+  /// Create a new `TrustedTypePolicyOptions` instance.
+  external factory TrustedTypePolicyOptions({
+    JSFunction createHTML,
+  });
+}
+
+// TODO(ditman): remove this extension type when we depend on package:web 0.5.1
+/// This extension exists as a stop gap until `package:web 0.5.1` is released.
+/// That version provides the `TrustedTypes` API.
+@JS()
+extension type TrustedHTML._(JSObject _) implements JSObject {
+  // This type inherits `toString()` from `Object`.
+  // See also: https://developer.mozilla.org/en-US/docs/Web/API/TrustedHTML/toString
+}

packages/google_maps_flutter/google_maps_flutter_web/pubspec.yaml

@@ -22,11 +22,11 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  google_maps: ^7.0.0
+  google_maps: ^7.1.0
   google_maps_flutter_platform_interface: ^2.4.0
   sanitize_html: ^2.0.0
   stream_transform: ^2.0.0
-  web: "^0.5.0"
+  web: ^0.5.0
 
 dev_dependencies:
   flutter_test: