[web] Cleanup everything HTML from the flutter tool and test harness (#162836)

- Delete code paths that handle screenshots for the HTML renderer
- Delete artifact enums for the HTML/AUTO renderers (and all their
usages).
- Remove HTML/AUTO renderers warnings.
- Delete the HTML/AUTO renderer enums (and all their usages).
- Delete tests for all the above.

packages/flutter_test/lib/src/_matchers_web.dart

@@ -59,69 +59,37 @@ class MatchesGoldenFile extends AsyncMatcher {
       return 'matched too many widgets';
     }
     final Element element = elements.single;
-    final RenderObject renderObject = _findRepaintBoundary(element);
-    final Size size = renderObject.paintBounds.size;
-    final TestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.instance;
-    final ui.FlutterView view = binding.platformDispatcher.implicitView!;
-    final RenderView renderView = binding.renderViews.firstWhere(
-      (RenderView r) => r.flutterView == view,
-    );
 
-    if (isSkiaWeb) {
+    // In CanvasKit and Skwasm, use Layer.toImage to generate the screenshot.
-      // In CanvasKit and Skwasm, use Layer.toImage to generate the screenshot.
+    final TestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.instance;
-      final TestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.instance;
+    return binding.runAsync<String?>(() async {
-      return binding.runAsync<String?>(() async {
+      assert(element.renderObject != null);
-        assert(element.renderObject != null);
+      RenderObject renderObject = element.renderObject!;
-        RenderObject renderObject = element.renderObject!;
+      while (!renderObject.isRepaintBoundary) {
-        while (!renderObject.isRepaintBoundary) {
+        renderObject = renderObject.parent!;
-          renderObject = renderObject.parent!;
+      }
+      assert(!renderObject.debugNeedsPaint);
+      final OffsetLayer layer = renderObject.debugLayer! as OffsetLayer;
+      final ui.Image image = await layer.toImage(renderObject.paintBounds);
+      try {
+        final ByteData? bytes = await image.toByteData(format: ui.ImageByteFormat.png);
+        if (bytes == null) {
+          return 'could not encode screenshot.';
         }
-        assert(!renderObject.debugNeedsPaint);
-        final OffsetLayer layer = renderObject.debugLayer! as OffsetLayer;
-        final ui.Image image = await layer.toImage(renderObject.paintBounds);
-        try {
-          final ByteData? bytes = await image.toByteData(format: ui.ImageByteFormat.png);
-          if (bytes == null) {
-            return 'could not encode screenshot.';
-          }
-          if (autoUpdateGoldenFiles) {
-            await goldenFileComparator.update(key, bytes.buffer.asUint8List());
-            return null;
-          }
-          try {
-            final bool success = await goldenFileComparator.compare(
-              bytes.buffer.asUint8List(),
-              key,
-            );
-            return success ? null : 'does not match';
-          } on TestFailure catch (ex) {
-            return ex.message;
-          }
-        } finally {
-          image.dispose();
-        }
-      });
-    } else {
-      // In the HTML renderer, we don't have the ability to render an element
-      // to an image directly. Instead, we will use `window.render()` to render
-      // only the element being requested, and send a request to the test server
-      // requesting it to take a screenshot through the browser's debug interface.
-      _renderElement(view, renderObject);
-      final String? result = await binding.runAsync<String?>(() async {
         if (autoUpdateGoldenFiles) {
-          await webGoldenComparator.update(size.width, size.height, key);
+          await goldenFileComparator.update(key, bytes.buffer.asUint8List());
           return null;
         }
         try {
-          final bool success = await webGoldenComparator.compare(size.width, size.height, key);
+          final bool success = await goldenFileComparator.compare(bytes.buffer.asUint8List(), key);
           return success ? null : 'does not match';
         } on TestFailure catch (ex) {
           return ex.message;
         }
-      });
+      } finally {
-      _renderElement(view, renderView);
+        image.dispose();
-      return result;
+      }
-    }
+    });
   }
 
   @override
@@ -130,27 +98,3 @@ class MatchesGoldenFile extends AsyncMatcher {
     return description.add('one widget whose rasterized image matches golden image "$testNameUri"');
   }
 }
-
-RenderObject _findRepaintBoundary(Element element) {
-  assert(element.renderObject != null);
-  RenderObject renderObject = element.renderObject!;
-  while (!renderObject.isRepaintBoundary) {
-    renderObject = renderObject.parent!;
-  }
-  return renderObject;
-}
-
-void _renderElement(ui.FlutterView window, RenderObject renderObject) {
-  assert(renderObject.debugLayer != null);
-  final Layer layer = renderObject.debugLayer!;
-  final ui.SceneBuilder sceneBuilder = ui.SceneBuilder();
-  if (layer is OffsetLayer) {
-    sceneBuilder.pushOffset(-layer.offset.dx, -layer.offset.dy);
-  }
-  // ignore: invalid_use_of_visible_for_testing_member, invalid_use_of_protected_member
-  layer.updateSubtreeNeedsAddToScene();
-  // ignore: invalid_use_of_protected_member
-  layer.addToScene(sceneBuilder);
-  sceneBuilder.pop();
-  window.render(sceneBuilder.build());
-}

packages/flutter_tools/lib/src/artifacts.dart

@@ -103,21 +103,14 @@ enum HostArtifact {
 
   /// The precompiled SDKs and sourcemaps for web debug builds with the AMD module system.
   // TODO(markzipan): delete these when DDC's AMD module system is deprecated, https://github.com/flutter/flutter/issues/142060.
-  webPrecompiledAmdSdk,
-  webPrecompiledAmdSdkSourcemaps,
   webPrecompiledAmdCanvaskitSdk,
   webPrecompiledAmdCanvaskitSdkSourcemaps,
-  webPrecompiledAmdCanvaskitAndHtmlSdk,
-  webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps,
 
   /// The precompiled SDKs and sourcemaps for web debug builds with the DDC
-  /// library bundle module system.
+  /// library bundle module system. Only SDKs built with sound null-safety are
-  webPrecompiledDdcLibraryBundleSdk,
+  /// provided here.
-  webPrecompiledDdcLibraryBundleSdkSourcemaps,
   webPrecompiledDdcLibraryBundleCanvaskitSdk,
   webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps,
-  webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk,
-  webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps,
 
   iosDeploy,
   idevicesyslog,
@@ -263,19 +256,11 @@ String _hostArtifactToFileName(HostArtifact artifact, Platform platform) {
       return 'dart2js_platform.dill';
     case HostArtifact.flutterWebLibrariesJson:
       return 'libraries.json';
-    case HostArtifact.webPrecompiledAmdSdk:
     case HostArtifact.webPrecompiledAmdCanvaskitSdk:
-    case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk:
-    case HostArtifact.webPrecompiledDdcLibraryBundleSdk:
     case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk:
-    case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk:
       return 'dart_sdk.js';
-    case HostArtifact.webPrecompiledAmdSdkSourcemaps:
     case HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps:
-    case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps:
-    case HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps:
     case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps:
-    case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps:
       return 'dart_sdk.js.map';
     case HostArtifact.impellerc:
       return 'impellerc$exe';
@@ -459,15 +444,6 @@ class CachedArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdSdk:
-      case HostArtifact.webPrecompiledAmdSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledAmdCanvaskitSdk:
       case HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -477,24 +453,6 @@ class CachedArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk:
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -504,15 +462,6 @@ class CachedArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.idevicesyslog:
       case HostArtifact.idevicescreenshot:
         final String artifactFileName = _hostArtifactToFileName(artifact, _platform);
@@ -1162,15 +1111,6 @@ class CachedLocalEngineArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdSdk:
-      case HostArtifact.webPrecompiledAmdSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledAmdCanvaskitSdk:
       case HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -1180,24 +1120,6 @@ class CachedLocalEngineArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk:
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -1207,15 +1129,6 @@ class CachedLocalEngineArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.idevicesyslog:
       case HostArtifact.idevicescreenshot:
         final String artifactFileName = _hostArtifactToFileName(artifact, _platform);
@@ -1569,15 +1482,6 @@ class CachedLocalWebSdkArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdSdk:
-      case HostArtifact.webPrecompiledAmdSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledAmdCanvaskitSdk:
       case HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -1587,24 +1491,6 @@ class CachedLocalWebSdkArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'amd-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk:
       case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps:
         final String path = _fileSystem.path.join(
@@ -1614,15 +1500,6 @@ class CachedLocalWebSdkArtifacts implements Artifacts {
           _hostArtifactToFileName(artifact, _platform),
         );
         return _fileSystem.file(path);
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk:
-      case HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps:
-        final String path = _fileSystem.path.join(
-          _getFlutterWebSdkPath(),
-          'kernel',
-          'ddcLibraryBundle-canvaskit-html',
-          _hostArtifactToFileName(artifact, _platform),
-        );
-        return _fileSystem.file(path);
       case HostArtifact.iosDeploy:
       case HostArtifact.idevicesyslog:
       case HostArtifact.idevicescreenshot:

packages/flutter_tools/lib/src/commands/build_web.dart

@@ -169,9 +169,6 @@ class BuildWebCommand extends BuildSubCommand {
     final bool sourceMaps = boolArg('source-maps');
 
     final List<WebCompilerConfig> compilerConfigs;
-    if (webRenderer.isDeprecated) {
-      globals.logger.printWarning(webRenderer.deprecationWarning);
-    }
 
     if (useWasm) {
       if (webRenderer != WebRendererMode.getDefault(useWasm: true)) {

packages/flutter_tools/lib/src/commands/run.dart

@@ -672,10 +672,6 @@ class RunCommand extends RunCommandBase {
       throwToolExit('--wasm is only supported on the web platform');
     }
 
-    if (webRenderer.isDeprecated) {
-      globals.logger.printWarning(webRenderer.deprecationWarning);
-    }
-
     if (webRenderer == WebRendererMode.skwasm && !useWasm) {
       throwToolExit('Skwasm renderer requires --wasm');
     }

packages/flutter_tools/lib/src/commands/test.dart

@@ -592,10 +592,6 @@ class TestCommand extends FlutterCommand with DeviceBasedDevelopmentArtifacts {
       throwToolExit('Skwasm renderer requires --wasm');
     }
 
-    if (webRenderer.isDeprecated) {
-      globals.logger.printWarning(webRenderer.deprecationWarning);
-    }
-
     Device? integrationTestDevice;
     if (_isIntegrationTest) {
       integrationTestDevice = await findTargetDevice();

packages/flutter_tools/lib/src/test/flutter_web_platform.dart

@@ -17,7 +17,6 @@ import 'package:shelf_web_socket/shelf_web_socket.dart';
 import 'package:stream_channel/stream_channel.dart';
 import 'package:test_core/src/platform.dart'; // ignore: implementation_imports
 import 'package:web_socket_channel/web_socket_channel.dart';
-import 'package:webkit_inspection_protocol/webkit_inspection_protocol.dart' hide StackTrace;
 
 import '../artifacts.dart';
 import '../base/common.dart';
@@ -451,49 +450,12 @@ class FlutterWebPlatform extends PlatformPlugin {
           json.decode(await request.readAsString()) as Map<String, Object?>;
       final Uri goldenKey = Uri.parse(body['key']! as String);
       final Uri testUri = Uri.parse(body['testUri']! as String);
-      final num? width = body['width'] as num?;
-      final num? height = body['height'] as num?;
       Uint8List bytes;
 
       if (body.containsKey('bytes')) {
         bytes = base64.decode(body['bytes']! as String);
       } else {
-        // TODO(hterkelsen): Do not use browser screenshots for testing on the
+        return shelf.Response.ok('Request must contain bytes in the body.');
-        // web once we transition off the HTML renderer. See:
-        // https://github.com/flutter/flutter/issues/135700
-        try {
-          final ChromeTab chromeTab =
-              (await getChromeTabGuarded(_browserManager!._browser.chromeConnection, (
-                ChromeTab tab,
-              ) {
-                return tab.url.contains(_browserManager!._browser.url!);
-              }))!;
-          final WipConnection connection = await chromeTab.connect();
-          final WipResponse response = await connection.sendCommand(
-            'Page.captureScreenshot',
-            <String, Object>{
-              // Clip the screenshot to include only the element.
-              // Prior to taking a screenshot, we are calling `window.render()` in
-              // `_matchers_web.dart` to only render the element on screen. That
-              // will make sure that the element will always be displayed on the
-              // origin of the screen.
-              'clip': <String, Object>{
-                'x': 0.0,
-                'y': 0.0,
-                'width': width!.toDouble(),
-                'height': height!.toDouble(),
-                'scale': 1.0,
-              },
-            },
-          );
-          bytes = base64.decode(response.result!['data'] as String);
-        } on WipError catch (ex) {
-          _logger.printError('Caught WIPError: $ex');
-          return shelf.Response.ok('WIP error: $ex');
-        } on FormatException catch (ex) {
-          _logger.printError('Caught FormatException: $ex');
-          return shelf.Response.ok('Caught exception: $ex');
-        }
       }
       if (updateGoldens) {
         return switch (await _testGoldenComparator.update(testUri, bytes, goldenKey)) {

packages/flutter_tools/lib/src/web/compile.dart

@@ -160,30 +160,19 @@ class WebBuilder {
 
 /// Web rendering backend mode.
 enum WebRendererMode {
-  /// Auto detects which rendering backend to use.
-  auto,
-
   /// Always uses canvaskit.
   canvaskit,
 
-  /// Always uses html.
-  html,
-
   /// Always use skwasm.
   skwasm;
 
   factory WebRendererMode.fromDartDefines(Iterable<String> defines, {required bool useWasm}) {
-    if (defines.contains('FLUTTER_WEB_AUTO_DETECT=true')) {
+    if (defines.contains('FLUTTER_WEB_USE_SKIA=false') &&
-      return auto;
-    } else if (defines.contains('FLUTTER_WEB_USE_SKIA=false') &&
         defines.contains('FLUTTER_WEB_USE_SKWASM=true')) {
       return skwasm;
     } else if (defines.contains('FLUTTER_WEB_USE_SKIA=true') &&
         defines.contains('FLUTTER_WEB_USE_SKWASM=false')) {
       return canvaskit;
-    } else if (defines.contains('FLUTTER_WEB_USE_SKIA=false') &&
-        defines.contains('FLUTTER_WEB_USE_SKWASM=false')) {
-      return html; // The horror!
     }
     return getDefault(useWasm: useWasm);
   }
@@ -195,30 +184,6 @@ enum WebRendererMode {
   static const WebRendererMode defaultForJs = WebRendererMode.canvaskit;
   static const WebRendererMode defaultForWasm = WebRendererMode.skwasm;
 
-  /// Returns whether the WebRendererMode is considered deprecated or not.
-  ///
-  /// Deprecated modes: auto, html.
-  bool get isDeprecated => switch (this) {
-    auto => true,
-    canvaskit => false,
-    html => true,
-    skwasm => false,
-  };
-
-  /// Returns a consistent deprecation warning for the WebRendererMode.
-  String get deprecationWarning =>
-      'The HTML Renderer is deprecated and will be removed. Please, stop using it.'
-      '\nSee: https://docs.flutter.dev/to/web-html-renderer-deprecation';
-
-  String get helpText => switch (this) {
-    auto => 'Use the HTML renderer on mobile devices, and CanvasKit on desktop devices.',
-    canvaskit =>
-      'Always use the CanvasKit renderer. This renderer uses WebGL and WebAssembly to render graphics.',
-    html =>
-      'Always use the HTML renderer. This renderer uses a combination of HTML, CSS, SVG, 2D Canvas, and WebGL.',
-    skwasm => 'Always use the experimental skwasm renderer.',
-  };
-
   /// Returns [dartDefines] in a way usable from the CLI.
   ///
   /// This is used to start integration tests.
@@ -226,9 +191,7 @@ enum WebRendererMode {
       dartDefines.map((String define) => '--dart-define=$define');
 
   Iterable<String> get dartDefines => switch (this) {
-    auto => const <String>{'FLUTTER_WEB_AUTO_DETECT=true'},
     canvaskit => const <String>{'FLUTTER_WEB_USE_SKIA=true', 'FLUTTER_WEB_USE_SKWASM=false'},
-    html => const <String>{'FLUTTER_WEB_USE_SKIA=false', 'FLUTTER_WEB_USE_SKWASM=false'},
     skwasm => const <String>{'FLUTTER_WEB_USE_SKIA=false', 'FLUTTER_WEB_USE_SKWASM=true'},
   };
 
@@ -238,9 +201,7 @@ enum WebRendererMode {
 
     dartDefinesSet
       ..removeWhere((String d) {
-        return d.startsWith('FLUTTER_WEB_AUTO_DETECT=') ||
+        return d.startsWith('FLUTTER_WEB_USE_SKIA=') || d.startsWith('FLUTTER_WEB_USE_SKWASM=');
-            d.startsWith('FLUTTER_WEB_USE_SKIA=') ||
-            d.startsWith('FLUTTER_WEB_USE_SKWASM=');
       })
       ..addAll(dartDefines);
 
@@ -251,37 +212,28 @@ enum WebRendererMode {
 /// The correct precompiled artifact to use for each build and render mode for DDC with AMD modules.
 // TODO(markzipan): delete this when DDC's AMD module system is deprecated, https://github.com/flutter/flutter/issues/142060.
 const Map<WebRendererMode, HostArtifact> kAmdDartSdkJsArtifactMap = <WebRendererMode, HostArtifact>{
-  WebRendererMode.auto: HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk,
   WebRendererMode.canvaskit: HostArtifact.webPrecompiledAmdCanvaskitSdk,
-  WebRendererMode.html: HostArtifact.webPrecompiledAmdSdk,
 };
 
 /// The correct source map artifact to use for each build and render mode for DDC with AMD modules.
 // TODO(markzipan): delete this when DDC's AMD module system is deprecated, https://github.com/flutter/flutter/issues/142060.
 const Map<WebRendererMode, HostArtifact> kAmdDartSdkJsMapArtifactMap =
     <WebRendererMode, HostArtifact>{
-      WebRendererMode.auto: HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdkSourcemaps,
       WebRendererMode.canvaskit: HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps,
-      WebRendererMode.html: HostArtifact.webPrecompiledAmdSdkSourcemaps,
     };
 
 /// The correct precompiled artifact to use for each build and render mode for
 /// DDC with DDC library bundle module format.
 const Map<WebRendererMode, HostArtifact> kDdcLibraryBundleDartSdkJsArtifactMap =
     <WebRendererMode, HostArtifact>{
-      WebRendererMode.auto: HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk,
       WebRendererMode.canvaskit: HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk,
-      WebRendererMode.html: HostArtifact.webPrecompiledDdcLibraryBundleSdk,
     };
 
 /// The correct source map artifact to use for each build and render mode for
 /// DDC with DDC library bundle module format.
 const Map<WebRendererMode, HostArtifact> kDdcLibraryBundleDartSdkJsMapArtifactMap =
     <WebRendererMode, HostArtifact>{
-      WebRendererMode.auto:
-          HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdkSourcemaps,
       WebRendererMode.canvaskit: HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps,
-      WebRendererMode.html: HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps,
     };
 
 String _buildEventAnalyticsSettings({required List<WebCompilerConfig> configs}) {

packages/flutter_tools/test/commands.shard/hermetic/build_web_test.dart

@@ -4,7 +4,6 @@
 
 import 'package:args/command_runner.dart';
 import 'package:file/memory.dart';
-import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/platform.dart';
@@ -14,14 +13,12 @@ import 'package:flutter_tools/src/build_system/targets/web.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/build.dart';
 import 'package:flutter_tools/src/commands/build_web.dart';
-import 'package:flutter_tools/src/dart/pub.dart';
 import 'package:flutter_tools/src/features.dart';
 import 'package:flutter_tools/src/runner/flutter_command.dart';
 import 'package:flutter_tools/src/web/compile.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';
-import '../../src/fake_pub_deps.dart';
 import '../../src/fakes.dart';
 import '../../src/test_build_system.dart';
 import '../../src/test_flutter_command_runner.dart';
@@ -32,16 +29,6 @@ void main() {
   late BufferLogger logger;
   late ProcessManager processManager;
 
-  // TODO(matanlurey): Remove after `explicit-package-dependencies` is enabled by default.
-  // See https://github.com/flutter/flutter/issues/160257 for details.
-  FeatureFlags enableExplicitPackageDependencies() {
-    return TestFeatureFlags(
-      isExplicitPackageDependenciesEnabled: true,
-      // Assumed to be true below.
-      isWebEnabled: true,
-    );
-  }
-
   setUpAll(() {
     Cache.flutterRoot = '';
     Cache.disableLocking();
@@ -459,42 +446,6 @@ void main() {
     },
   );
 
-  // Tests whether using a deprecated webRenderer toggles a warningText.
-  Future<void> testWebRendererDeprecationMessage(WebRendererMode webRenderer) async {
-    testUsingContext(
-      'Using the "${webRenderer.name}" renderer triggers a warningText.',
-      () async {
-        // Run the command so it parses the renderer, but ignore all errors.
-        // We only care about the logger.
-        try {
-          final TestWebBuildCommand buildCommand = TestWebBuildCommand(fileSystem: fileSystem);
-          await createTestCommandRunner(
-            buildCommand,
-          ).run(<String>['build', 'web', '--no-pub', ...webRenderer.toCliDartDefines]);
-        } on ToolExit catch (error) {
-          expect(error, isA<ToolExit>());
-        }
-        expect(
-          logger.warningText,
-          contains('See: https://docs.flutter.dev/to/web-html-renderer-deprecation'),
-        );
-      },
-      overrides: <Type, Generator>{
-        Platform: () => fakePlatform,
-        FileSystem: () => fileSystem,
-        ProcessManager: () => processManager,
-        Logger: () => logger,
-        FeatureFlags: enableExplicitPackageDependencies,
-        Pub: FakePubWithPrimedDeps.new,
-      },
-    );
-  }
-
-  /// Do test all the deprecated WebRendererModes
-  WebRendererMode.values
-      .where((WebRendererMode mode) => mode.isDeprecated)
-      .forEach(testWebRendererDeprecationMessage);
-
   testUsingContext(
     'flutter build web option visibility',
     () async {

packages/flutter_tools/test/commands.shard/hermetic/flutter_web_platform_test.dart

@@ -53,12 +53,8 @@ void main() {
     tempDir = fileSystem.systemTempDirectory.createTempSync('flutter_web_platform_test.');
 
     for (final HostArtifact artifact in <HostArtifact>[
-      HostArtifact.webPrecompiledAmdCanvaskitAndHtmlSdk,
       HostArtifact.webPrecompiledAmdCanvaskitSdk,
-      HostArtifact.webPrecompiledAmdSdk,
-      HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitAndHtmlSdk,
       HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk,
-      HostArtifact.webPrecompiledDdcLibraryBundleSdk,
     ]) {
       final File artifactFile = artifacts.getHostArtifact(artifact) as File;
       artifactFile.createSync();

packages/flutter_tools/test/commands.shard/hermetic/run_test.dart

@@ -1107,39 +1107,6 @@ void main() {
         },
       );
 
-      // Tests whether using a deprecated webRenderer toggles a warningText.
-      Future<void> testWebRendererDeprecationMessage(WebRendererMode webRenderer) async {
-        testUsingContext(
-          'Using the "${webRenderer.name}" renderer triggers a warningText.',
-          () async {
-            // Run the command so it parses the renderer, but ignore all errors.
-            // We only care about the logger.
-            try {
-              await createTestCommandRunner(
-                RunCommand(),
-              ).run(<String>['run', '--no-pub', ...webRenderer.toCliDartDefines]);
-            } on ToolExit catch (error) {
-              expect(error, isA<ToolExit>());
-            }
-            expect(
-              logger.warningText,
-              contains('See: https://docs.flutter.dev/to/web-html-renderer-deprecation'),
-            );
-          },
-          overrides: <Type, Generator>{
-            FileSystem: () => fileSystem,
-            ProcessManager: () => FakeProcessManager.any(),
-            Logger: () => logger,
-            DeviceManager: () => testDeviceManager,
-          },
-        );
-      }
-
-      /// Do test all the deprecated WebRendererModes
-      WebRendererMode.values
-          .where((WebRendererMode mode) => mode.isDeprecated)
-          .forEach(testWebRendererDeprecationMessage);
-
       testUsingContext(
         'accepts headers with commas in them',
         () async {

packages/flutter_tools/test/commands.shard/hermetic/test_test.dart

@@ -1525,45 +1525,6 @@ dev_dependencies:
     );
   });
 
-  // Tests whether using a deprecated webRenderer toggles a warningText.
-  Future<void> testWebRendererDeprecationMessage(WebRendererMode webRenderer) async {
-    testUsingContext(
-      'Using the "${webRenderer.name}" renderer triggers a warningText.',
-      () async {
-        // Run the command so it parses the renderer, but ignore all errors.
-        // We only care about the logger.
-        try {
-          final FakeFlutterTestRunner testRunner = FakeFlutterTestRunner(0);
-
-          final TestCommand testCommand = TestCommand(testRunner: testRunner);
-          await createTestCommandRunner(testCommand).run(<String>[
-            'test',
-            'web',
-            '--no-pub',
-            '--platform=chrome',
-            ...webRenderer.toCliDartDefines,
-          ]);
-        } on ToolExit catch (error) {
-          expect(error, isA<ToolExit>());
-        }
-        expect(
-          logger.warningText,
-          contains('See: https://docs.flutter.dev/to/web-html-renderer-deprecation'),
-        );
-      },
-      overrides: <Type, Generator>{
-        FileSystem: () => fs,
-        ProcessManager: () => FakeProcessManager.any(),
-        Logger: () => logger,
-      },
-    );
-  }
-
-  /// Do test all the deprecated WebRendererModes
-  WebRendererMode.values
-      .where((WebRendererMode mode) => mode.isDeprecated)
-      .forEach(testWebRendererDeprecationMessage);
-
   testUsingContext(
     'Can test in a pub workspace',
     () async {

packages/flutter_tools/test/general.shard/artifacts_test.dart

@@ -236,14 +236,6 @@ void main() {
     );
 
     testWithoutContext('Precompiled web AMD module system artifact paths are correct', () {
-      expect(
-        artifacts.getHostArtifact(HostArtifact.webPrecompiledAmdSdk).path,
-        'root/bin/cache/flutter_web_sdk/kernel/amd/dart_sdk.js',
-      );
-      expect(
-        artifacts.getHostArtifact(HostArtifact.webPrecompiledAmdSdkSourcemaps).path,
-        'root/bin/cache/flutter_web_sdk/kernel/amd/dart_sdk.js.map',
-      );
       expect(
         artifacts.getHostArtifact(HostArtifact.webPrecompiledAmdCanvaskitSdk).path,
         'root/bin/cache/flutter_web_sdk/kernel/amd-canvaskit/dart_sdk.js',
@@ -257,14 +249,6 @@ void main() {
     testWithoutContext(
       'Precompiled web DDC library bundle module system artifact paths are correct',
       () {
-        expect(
-          artifacts.getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleSdk).path,
-          'root/bin/cache/flutter_web_sdk/kernel/ddcLibraryBundle/dart_sdk.js',
-        );
-        expect(
-          artifacts.getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps).path,
-          'root/bin/cache/flutter_web_sdk/kernel/ddcLibraryBundle/dart_sdk.js.map',
-        );
         expect(
           artifacts.getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk).path,
           'root/bin/cache/flutter_web_sdk/kernel/ddcLibraryBundle-canvaskit/dart_sdk.js',

packages/flutter_tools/test/general.shard/build_system/targets/web_defines_test.dart

@@ -13,39 +13,17 @@ void main() {
       dartDefines = <String>[];
     });
 
-    test('auto web-renderer with no dart-defines', () {
-      dartDefines = WebRendererMode.auto.updateDartDefines(dartDefines);
-      expect(dartDefines, <String>['FLUTTER_WEB_AUTO_DETECT=true']);
-    });
-
     test('canvaskit web-renderer with no dart-defines', () {
       dartDefines = WebRendererMode.canvaskit.updateDartDefines(dartDefines);
       expect(dartDefines, <String>['FLUTTER_WEB_USE_SKIA=true', 'FLUTTER_WEB_USE_SKWASM=false']);
     });
 
-    test('html web-renderer with no dart-defines', () {
-      dartDefines = WebRendererMode.html.updateDartDefines(dartDefines);
-      expect(dartDefines, <String>['FLUTTER_WEB_USE_SKIA=false', 'FLUTTER_WEB_USE_SKWASM=false']);
-    });
-
-    test('auto web-renderer with existing dart-defines', () {
-      dartDefines = <String>['FLUTTER_WEB_USE_SKIA=false'];
-      dartDefines = WebRendererMode.auto.updateDartDefines(dartDefines);
-      expect(dartDefines, <String>['FLUTTER_WEB_AUTO_DETECT=true']);
-    });
-
     test('canvaskit web-renderer with existing dart-defines', () {
       dartDefines = <String>['FLUTTER_WEB_USE_SKIA=false'];
       dartDefines = WebRendererMode.canvaskit.updateDartDefines(dartDefines);
       expect(dartDefines, <String>['FLUTTER_WEB_USE_SKIA=true', 'FLUTTER_WEB_USE_SKWASM=false']);
     });
 
-    test('html web-renderer with existing dart-defines', () {
-      dartDefines = <String>['FLUTTER_WEB_USE_SKIA=true'];
-      dartDefines = WebRendererMode.html.updateDartDefines(dartDefines);
-      expect(dartDefines, <String>['FLUTTER_WEB_USE_SKIA=false', 'FLUTTER_WEB_USE_SKWASM=false']);
-    });
-
     test('skwasm web-renderer with existing dart-defines', () {
       dartDefines = <String>['FLUTTER_WEB_USE_SKWASM=false'];
       dartDefines = WebRendererMode.skwasm.updateDartDefines(dartDefines);

packages/flutter_tools/test/general.shard/build_system/targets/web_test.dart

@@ -1236,7 +1236,6 @@ void main() {
       JsCompilerConfig(optimizationLevel: 0),
       JsCompilerConfig(noFrequencyBasedMinification: true),
       JsCompilerConfig(sourceMaps: false),
-      JsCompilerConfig(renderer: WebRendererMode.html),
 
       // All properties non-default
       JsCompilerConfig(
@@ -1246,7 +1245,6 @@ void main() {
         optimizationLevel: 0,
         noFrequencyBasedMinification: true,
         sourceMaps: false,
-        renderer: WebRendererMode.html,
       ),
     ];
 

packages/flutter_tools/test/general.shard/web/devfs_web_ddc_modules_test.dart

@@ -807,7 +807,7 @@ void main() {
         chromiumLauncher: null,
         ddcModuleSystem: usesDdcModuleSystem,
         canaryFeatures: canaryFeatures,
-        webRenderer: WebRendererMode.html,
+        webRenderer: WebRendererMode.canvaskit,
         isWasm: false,
         useLocalCanvasKit: false,
         rootDirectory: globals.fs.currentDirectory,
@@ -822,12 +822,6 @@ void main() {
       globals.fs.currentDirectory.childDirectory('lib').childFile('web_entrypoint.dart')
         ..createSync(recursive: true)
         ..writeAsStringSync('GENERATED');
-      final String webPrecompiledSdk =
-          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleSdk).path;
-      final String webPrecompiledSdkSourcemaps =
-          globals.artifacts!
-              .getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleSdkSourcemaps)
-              .path;
       final String webPrecompiledCanvaskitSdk =
           globals.artifacts!
               .getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdk)
@@ -836,18 +830,12 @@ void main() {
           globals.artifacts!
               .getHostArtifact(HostArtifact.webPrecompiledDdcLibraryBundleCanvaskitSdkSourcemaps)
               .path;
-      globals.fs.file(webPrecompiledSdk)
-        ..createSync(recursive: true)
-        ..writeAsStringSync('HELLO');
-      globals.fs.file(webPrecompiledSdkSourcemaps)
-        ..createSync(recursive: true)
-        ..writeAsStringSync('THERE');
       globals.fs.file(webPrecompiledCanvaskitSdk)
         ..createSync(recursive: true)
-        ..writeAsStringSync('OL');
+        ..writeAsStringSync('HELLO');
       globals.fs.file(webPrecompiledCanvaskitSdkSourcemaps)
         ..createSync(recursive: true)
-        ..writeAsStringSync('CHUM');
+        ..writeAsStringSync('THERE');
 
       await webDevFS.update(
         mainUri: globals.fs.file(globals.fs.path.join('lib', 'main.dart')).uri,
@@ -872,7 +860,7 @@ void main() {
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js.map'), 'THERE');
 
       // Update to the SDK.
-      globals.fs.file(webPrecompiledSdk).writeAsStringSync('BELLOW');
+      globals.fs.file(webPrecompiledCanvaskitSdk).writeAsStringSync('BELLOW');
 
       // New SDK should be visible..
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js'), 'BELLOW');
@@ -1071,57 +1059,6 @@ void main() {
     await webDevFS.destroy();
   });
 
-  runInTestbed('Can start web server with auto detect enabled', () async {
-    final String path = globals.fs.path.join('lib', 'main.dart');
-    final File outputFile = globals.fs.file(path)..createSync(recursive: true);
-    outputFile.parent.childFile('a.sources').writeAsStringSync('');
-    outputFile.parent.childFile('a.json').writeAsStringSync('{}');
-    outputFile.parent.childFile('a.map').writeAsStringSync('{}');
-
-    final WebDevFS webDevFS = WebDevFS(
-      hostname: 'localhost',
-      port: 0,
-      tlsCertPath: null,
-      tlsCertKeyPath: null,
-      packagesFilePath: '.dart_tool/package_config.json',
-      urlTunneller: null,
-      useSseForDebugProxy: true,
-      useSseForDebugBackend: true,
-      useSseForInjectedClient: true,
-      nullAssertions: true,
-      nativeNullAssertions: true,
-      buildInfo: const BuildInfo(
-        BuildMode.debug,
-        '',
-        treeShakeIcons: false,
-        dartDefines: <String>['FLUTTER_WEB_AUTO_DETECT=true'],
-        packageConfigPath: '.dart_tool/package_config.json',
-      ),
-      enableDwds: false,
-      enableDds: false,
-      entrypoint: Uri.base,
-      testMode: true,
-      expressionCompiler: null,
-      extraHeaders: const <String, String>{},
-      chromiumLauncher: null,
-      ddcModuleSystem: usesDdcModuleSystem,
-      canaryFeatures: canaryFeatures,
-      webRenderer: WebRendererMode.auto,
-      isWasm: false,
-      useLocalCanvasKit: false,
-      rootDirectory: globals.fs.currentDirectory,
-      isWindows: false,
-    );
-    webDevFS.ddcModuleLoaderJS.createSync(recursive: true);
-    webDevFS.stackTraceMapper.createSync(recursive: true);
-
-    await webDevFS.create();
-
-    expect(webDevFS.webAssetServer.webRenderer, WebRendererMode.auto);
-
-    await webDevFS.destroy();
-  });
-
   runInTestbed('Can start web server with tls connection', () async {
     final String dataPath = globals.fs.path.join(
       getFlutterRoot(),

packages/flutter_tools/test/general.shard/web/devfs_web_test.dart

@@ -927,7 +927,7 @@ void main() {
         chromiumLauncher: null,
         ddcModuleSystem: usesDdcModuleSystem,
         canaryFeatures: canaryFeatures,
-        webRenderer: WebRendererMode.html,
+        webRenderer: WebRendererMode.canvaskit,
         isWasm: false,
         useLocalCanvasKit: false,
         rootDirectory: globals.fs.currentDirectory,
@@ -939,17 +939,19 @@ void main() {
 
       final Uri uri = await webDevFS.create();
       webDevFS.webAssetServer.entrypointCacheDirectory = globals.fs.currentDirectory;
-      final String webPrecompiledSdk =
+      final String webPrecompiledCanvaskitSdk =
-          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdSdk).path;
+          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdCanvaskitSdk).path;
-      final String webPrecompiledSdkSourcemaps =
+      final String webPrecompiledCanvaskitSdkSourcemaps =
-          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdSdkSourcemaps).path;
+          globals.artifacts!
+              .getHostArtifact(HostArtifact.webPrecompiledAmdCanvaskitSdkSourcemaps)
+              .path;
       globals.fs.currentDirectory.childDirectory('lib').childFile('web_entrypoint.dart')
         ..createSync(recursive: true)
         ..writeAsStringSync('GENERATED');
-      globals.fs.file(webPrecompiledSdk)
+      globals.fs.file(webPrecompiledCanvaskitSdk)
         ..createSync(recursive: true)
         ..writeAsStringSync('HELLO');
-      globals.fs.file(webPrecompiledSdkSourcemaps)
+      globals.fs.file(webPrecompiledCanvaskitSdkSourcemaps)
         ..createSync(recursive: true)
         ..writeAsStringSync('THERE');
 
@@ -976,7 +978,7 @@ void main() {
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js.map'), 'THERE');
 
       // Update to the SDK.
-      globals.fs.file(webPrecompiledSdk).writeAsStringSync('BELLOW');
+      globals.fs.file(webPrecompiledCanvaskitSdk).writeAsStringSync('BELLOW');
 
       // New SDK should be visible..
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js'), 'BELLOW');
@@ -1034,7 +1036,7 @@ void main() {
         chromiumLauncher: null,
         ddcModuleSystem: usesDdcModuleSystem,
         canaryFeatures: canaryFeatures,
-        webRenderer: WebRendererMode.html,
+        webRenderer: WebRendererMode.canvaskit,
         isWasm: false,
         useLocalCanvasKit: false,
         rootDirectory: globals.fs.currentDirectory,
@@ -1049,10 +1051,6 @@ void main() {
       globals.fs.currentDirectory.childDirectory('lib').childFile('web_entrypoint.dart')
         ..createSync(recursive: true)
         ..writeAsStringSync('GENERATED');
-      final String webPrecompiledSdk =
-          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdSdk).path;
-      final String webPrecompiledSdkSourcemaps =
-          globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdSdkSourcemaps).path;
       final String webPrecompiledCanvaskitSdk =
           globals.artifacts!.getHostArtifact(HostArtifact.webPrecompiledAmdCanvaskitSdk).path;
       final String webPrecompiledCanvaskitSdkSourcemaps =
@@ -1063,18 +1061,12 @@ void main() {
         globals.artifacts!.getHostArtifact(HostArtifact.flutterJsDirectory).path,
         'flutter.js',
       );
-      globals.fs.file(webPrecompiledSdk)
-        ..createSync(recursive: true)
-        ..writeAsStringSync('HELLO');
-      globals.fs.file(webPrecompiledSdkSourcemaps)
-        ..createSync(recursive: true)
-        ..writeAsStringSync('THERE');
       globals.fs.file(webPrecompiledCanvaskitSdk)
         ..createSync(recursive: true)
-        ..writeAsStringSync('OL');
+        ..writeAsStringSync('HELLO');
       globals.fs.file(webPrecompiledCanvaskitSdkSourcemaps)
         ..createSync(recursive: true)
-        ..writeAsStringSync('CHUM');
+        ..writeAsStringSync('THERE');
       globals.fs.file(flutterJs)
         ..createSync(recursive: true)
         ..writeAsStringSync('(flutter.js content)');
@@ -1102,7 +1094,7 @@ void main() {
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js.map'), 'THERE');
 
       // Update to the SDK.
-      globals.fs.file(webPrecompiledSdk).writeAsStringSync('BELLOW');
+      globals.fs.file(webPrecompiledCanvaskitSdk).writeAsStringSync('BELLOW');
 
       // New SDK should be visible..
       expect(await webDevFS.webAssetServer.dartSourceContents('dart_sdk.js'), 'BELLOW');
@@ -1307,60 +1299,6 @@ void main() {
     }),
   );
 
-  test(
-    'Can start web server with auto detect enabled',
-    () => testbed.run(() async {
-      final File outputFile = globals.fs.file(globals.fs.path.join('lib', 'main.dart'))
-        ..createSync(recursive: true);
-      outputFile.parent.childFile('a.sources').writeAsStringSync('');
-      outputFile.parent.childFile('a.json').writeAsStringSync('{}');
-      outputFile.parent.childFile('a.map').writeAsStringSync('{}');
-
-      final WebDevFS webDevFS = WebDevFS(
-        hostname: 'localhost',
-        port: 0,
-        tlsCertPath: null,
-        tlsCertKeyPath: null,
-        packagesFilePath: '.dart_tool/package_config.json',
-        urlTunneller: null,
-        useSseForDebugProxy: true,
-        useSseForDebugBackend: true,
-        useSseForInjectedClient: true,
-        nullAssertions: true,
-        nativeNullAssertions: true,
-        buildInfo: const BuildInfo(
-          BuildMode.debug,
-          '',
-          treeShakeIcons: false,
-          dartDefines: <String>['FLUTTER_WEB_AUTO_DETECT=true'],
-          packageConfigPath: '.dart_tool/package_config.json',
-        ),
-        enableDwds: false,
-        enableDds: false,
-        entrypoint: Uri.base,
-        testMode: true,
-        expressionCompiler: null,
-        extraHeaders: const <String, String>{},
-        chromiumLauncher: null,
-        ddcModuleSystem: usesDdcModuleSystem,
-        canaryFeatures: canaryFeatures,
-        webRenderer: WebRendererMode.auto,
-        isWasm: false,
-        useLocalCanvasKit: false,
-        rootDirectory: globals.fs.currentDirectory,
-        isWindows: false,
-      );
-      webDevFS.requireJS.createSync(recursive: true);
-      webDevFS.stackTraceMapper.createSync(recursive: true);
-
-      await webDevFS.create();
-
-      expect(webDevFS.webAssetServer.webRenderer, WebRendererMode.auto);
-
-      await webDevFS.destroy();
-    }),
-  );
-
   test(
     'Can start web server with tls connection',
     () => testbed.run(() async {

packages/flutter_tools/test/web.shard/test_data/hot_reload_index_html_samples.dart

@@ -63,7 +63,7 @@ String indexHtmlFlutterJsLoad = _generateFlutterJsIndexHtml('''
         builds: [
           {
             "compileTarget": "dartdevc",
-            "renderer": "html",
+            "renderer": "canvaskit",
             "mainJsPath": "main.dart.js",
           }
         ]