Update web_benchmarks package to properly support wasm. (#6970)

This fixes the web_benchmarks package so it can compile and run apps with wasm. It also updates our CI steps to use a newer version of Chrome so that WasmGC works properly.

.ci.yaml

@@ -65,7 +65,7 @@ platform_properties:
       device_type: none
       dependencies: >-
         [
-          {"dependency": "chrome_and_driver", "version": "version:114.0"}
+          {"dependency": "chrome_and_driver", "version": "version:125.0.6422.141"}
         ]
   windows_arm64:
     properties:
@@ -327,7 +327,7 @@ targets:
           {"dependency": "clang", "version": "git_revision:5d5aba78dbbee75508f01bcaa69aedb2ab79065a"},
           {"dependency": "cmake", "version": "build_id:8787856497187628321"},
           {"dependency": "ninja", "version": "version:1.9.0"},
-          {"dependency": "chrome_and_driver", "version": "version:114.0"}
+          {"dependency": "chrome_and_driver", "version": "version:125.0.6422.141"}
         ]
       channel: master
       env_variables: >-
@@ -350,7 +350,7 @@ targets:
           {"dependency": "clang", "version": "git_revision:5d5aba78dbbee75508f01bcaa69aedb2ab79065a"},
           {"dependency": "cmake", "version": "build_id:8787856497187628321"},
           {"dependency": "ninja", "version": "version:1.9.0"},
-          {"dependency": "chrome_and_driver", "version": "version:114.0"}
+          {"dependency": "chrome_and_driver", "version": "version:125.0.6422.141"}
         ]
       channel: stable
       env_variables: >-
@@ -935,7 +935,7 @@ targets:
       # Install Chrome as a default handler for schemes for url_launcher.
       dependencies: >-
         [
-          {"dependency": "chrome_and_driver", "version": "version:114.0"}
+          {"dependency": "chrome_and_driver", "version": "version:125.0.6422.141"}
         ]
       env_variables: >-
         {
@@ -953,7 +953,7 @@ targets:
       # Install Chrome as a default handler for schemes for url_launcher.
       dependencies: >-
         [
-          {"dependency": "chrome_and_driver", "version": "version:114.0"}
+          {"dependency": "chrome_and_driver", "version": "version:125.0.6422.141"}
         ]
       env_variables: >-
         {

packages/web_benchmarks/CHANGELOG.md

@@ -1,6 +1,10 @@
-## NEXT
+## 2.0.0
 
 * Updates minimum supported SDK version to Flutter 3.16/Dart 3.2.
+* Adds support for running benchmarks with the wasm compilation target.
+* **Breaking change** `CompilationOptions` unnamed constructor has been replaced with
+two named constructors, `CompilationOptions.js` and `CompilationOptions.wasm` for
+JavaScript and WebAssembly compilation respectively.
 
 ## 1.2.2
 

packages/web_benchmarks/lib/server.dart

@@ -50,7 +50,7 @@ Future<BenchmarkResults> serveWebBenchmark({
   bool headless = true,
   bool treeShakeIcons = true,
   String initialPage = defaultInitialPage,
-  CompilationOptions compilationOptions = const CompilationOptions(),
+  CompilationOptions compilationOptions = const CompilationOptions.js(),
 }) async {
   // Reduce logging level. Otherwise, package:webkit_inspection_protocol is way too spammy.
   Logger.root.level = Level.INFO;

packages/web_benchmarks/lib/src/compilation_options.dart

@@ -7,11 +7,15 @@
 /// This object holds metadata that is used to determine how the benchmark app
 /// should be built.
 class CompilationOptions {
-  /// Creates a [CompilationOptions] object.
-  const CompilationOptions({
+  /// Creates a [CompilationOptions] object that compiles to JavaScript.
+  const CompilationOptions.js({
     this.renderer = WebRenderer.canvaskit,
-    this.useWasm = false,
-  });
+  }) : useWasm = false;
+
+  /// Creates a [CompilationOptions] object that compiles to WebAssembly.
+  const CompilationOptions.wasm()
+      : useWasm = true,
+        renderer = WebRenderer.skwasm;
 
   /// The renderer to use for the build.
   final WebRenderer renderer;

packages/web_benchmarks/lib/src/runner.dart

@@ -55,7 +55,7 @@ class BenchmarkServer {
     required this.chromeDebugPort,
     required this.headless,
     required this.treeShakeIcons,
-    this.compilationOptions = const CompilationOptions(),
+    this.compilationOptions = const CompilationOptions.js(),
     this.initialPage = defaultInitialPage,
   });
 
@@ -119,10 +119,9 @@ class BenchmarkServer {
         'web',
         if (compilationOptions.useWasm) ...<String>[
           '--wasm',
-          '--wasm-opt=debug',
-          '--omit-type-checks',
-        ],
-        '--web-renderer=${compilationOptions.renderer.name}',
+          '--no-strip-wasm',
+        ] else
+          '--web-renderer=${compilationOptions.renderer.name}',
         '--dart-define=FLUTTER_WEB_ENABLE_PROFILING=true',
         if (!treeShakeIcons) '--no-tree-shake-icons',
         '--profile',

packages/web_benchmarks/pubspec.yaml

@@ -2,7 +2,7 @@ name: web_benchmarks
 description: A benchmark harness for performance-testing Flutter apps in Chrome.
 repository: https://github.com/flutter/packages/tree/main/packages/web_benchmarks
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+web_benchmarks%22
-version: 1.2.2
+version: 2.0.0
 
 environment:
   sdk: ^3.3.0

packages/web_benchmarks/testing/test_app/web/index.html

@@ -21,16 +21,6 @@ found in the LICENSE file. -->
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
-  <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('load', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
-      });
-    }
-  </script>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <script src="flutter_bootstrap.js" type="application/javascript" async></script>
 </body>
 </html>

packages/web_benchmarks/testing/web_benchmarks_test.dart

@@ -32,10 +32,9 @@ Future<void> main() async {
       await _runBenchmarks(
         benchmarkNames: <String>['simple'],
         entryPoint: 'lib/benchmarks/runner_simple.dart',
-        compilationOptions: const CompilationOptions(useWasm: true),
+        compilationOptions: const CompilationOptions.wasm(),
       );
     },
-    skip: true, // https://github.com/flutter/flutter/issues/142809
     timeout: Timeout.none,
   );
 }
@@ -44,7 +43,7 @@ Future<void> _runBenchmarks({
   required List<String> benchmarkNames,
   required String entryPoint,
   String initialPage = defaultInitialPage,
-  CompilationOptions compilationOptions = const CompilationOptions(),
+  CompilationOptions compilationOptions = const CompilationOptions.js(),
 }) async {
   final BenchmarkResults taskResult = await serveWebBenchmark(
     benchmarkAppDirectory: Directory('testing/test_app'),