diff --git a/packages/flutter_tools/lib/src/isolated/devfs_web.dart b/packages/flutter_tools/lib/src/isolated/devfs_web.dart
index 230a13d..0dd390f 100644
--- a/packages/flutter_tools/lib/src/isolated/devfs_web.dart
+++ b/packages/flutter_tools/lib/src/isolated/devfs_web.dart
@@ -37,21 +37,20 @@
 import '../web/bootstrap.dart';
 import '../web/chrome.dart';
 
-typedef DwdsLauncher = Future<Dwds> Function({
-  @required AssetReader assetReader,
-  @required Stream<BuildResult> buildResults,
-  @required ConnectionProvider chromeConnection,
-  @required LoadStrategy loadStrategy,
-  @required bool enableDebugging,
-  ExpressionCompiler expressionCompiler,
-  bool enableDebugExtension,
-  String hostname,
-  bool useSseForDebugProxy,
-  bool useSseForDebugBackend,
-  bool serveDevTools,
-  UrlEncoder urlEncoder,
-  bool spawnDds
-});
+typedef DwdsLauncher = Future<Dwds> Function(
+    {@required AssetReader assetReader,
+    @required Stream<BuildResult> buildResults,
+    @required ConnectionProvider chromeConnection,
+    @required LoadStrategy loadStrategy,
+    @required bool enableDebugging,
+    ExpressionCompiler expressionCompiler,
+    bool enableDebugExtension,
+    String hostname,
+    bool useSseForDebugProxy,
+    bool useSseForDebugBackend,
+    bool serveDevTools,
+    UrlEncoder urlEncoder,
+    bool spawnDds});
 
 // A minimal index for projects that do not yet support web.
 const String _kDefaultIndex = '''
@@ -84,8 +83,9 @@
     String moduleName,
     String expression,
   ) async {
-    final CompilerOutput compilerOutput = await _generator.compileExpressionToJs(libraryUri,
-        line, column, jsModules, jsFrameValues, moduleName, expression);
+    final CompilerOutput compilerOutput =
+        await _generator.compileExpressionToJs(libraryUri, line, column,
+            jsModules, jsFrameValues, moduleName, expression);
 
     if (compilerOutput != null && compilerOutput.outputFilename != null) {
       final String content = utf8.decode(
@@ -95,7 +95,8 @@
     }
 
     return ExpressionCompilationResult(
-      'InternalError: frontend server failed to compile \'$expression\'', true);
+        'InternalError: frontend server failed to compile \'$expression\'',
+        true);
   }
 
   @override
@@ -130,9 +131,8 @@
       // We skip computing the digest by using the hashCode of the underlying buffer.
       // Whenever a file is updated, the corresponding Uint8List.view it corresponds
       // to will change.
-      final String moduleName = module.startsWith('/')
-        ? module.substring(1)
-        : module;
+      final String moduleName =
+          module.startsWith('/') ? module.substring(1) : module;
       final String name = moduleName.replaceAll('.lib.js', '');
       final String path = moduleName.replaceAll('.js', '');
       _modules[name] = path;
@@ -210,12 +210,15 @@
 
       // Ensure dwds is present and provide middleware to avoid trying to
       // load the through the isolate APIs.
-      final Directory directory = await _loadDwdsDirectory(globals.fs, globals.logger);
-      final shelf.Middleware middleware = (FutureOr<shelf.Response> Function(shelf.Request) innerHandler) {
+      final Directory directory =
+          await _loadDwdsDirectory(globals.fs, globals.logger);
+      final shelf.Middleware middleware =
+          (FutureOr<shelf.Response> Function(shelf.Request) innerHandler) {
         return (shelf.Request request) async {
           if (request.url.path.endsWith('dwds/src/injected/client.js')) {
             final Uri uri = directory.uri.resolve('src/injected/client.js');
-            final String result = await globals.fs.file(uri.toFilePath()).readAsString();
+            final String result =
+                await globals.fs.file(uri.toFilePath()).readAsString();
             return shelf.Response.ok(result, headers: <String, String>{
               HttpHeaders.contentTypeHeader: 'application/javascript'
             });
@@ -230,33 +233,33 @@
 
       // In debug builds, spin up DWDS and the full asset server.
       final Dwds dwds = await dwdsLauncher(
-        assetReader: server,
-        enableDebugExtension: true,
-        buildResults: const Stream<BuildResult>.empty(),
-        chromeConnection: () async {
-          final Chromium chromium = await chromiumLauncher.connectedInstance;
-          return chromium.chromeConnection;
-        },
-        hostname: hostname,
-        urlEncoder: urlTunneller,
-        enableDebugging: true,
-        useSseForDebugProxy: useSseForDebugProxy,
-        useSseForDebugBackend: useSseForDebugBackend,
-        serveDevTools: false,
-        loadStrategy: FrontendServerRequireStrategyProvider(
-                ReloadConfiguration.none, server, _digestProvider)
-            .strategy,
-        expressionCompiler: expressionCompiler,
-        spawnDds: true);
+          assetReader: server,
+          enableDebugExtension: true,
+          buildResults: const Stream<BuildResult>.empty(),
+          chromeConnection: () async {
+            final Chromium chromium = await chromiumLauncher.connectedInstance;
+            return chromium.chromeConnection;
+          },
+          hostname: hostname,
+          urlEncoder: urlTunneller,
+          enableDebugging: true,
+          useSseForDebugProxy: useSseForDebugProxy,
+          useSseForDebugBackend: useSseForDebugBackend,
+          serveDevTools: false,
+          loadStrategy: FrontendServerRequireStrategyProvider(
+                  ReloadConfiguration.none, server, _digestProvider)
+              .strategy,
+          expressionCompiler: expressionCompiler,
+          spawnDds: true);
       shelf.Pipeline pipeline = const shelf.Pipeline();
       if (enableDwds) {
         pipeline = pipeline.addMiddleware(middleware);
         pipeline = pipeline.addMiddleware(dwds.middleware);
       }
-      final shelf.Handler dwdsHandler = pipeline.addHandler(server.handleRequest);
-      final shelf.Cascade cascade = shelf.Cascade()
-        .add(dwds.handler)
-        .add(dwdsHandler);
+      final shelf.Handler dwdsHandler =
+          pipeline.addHandler(server.handleRequest);
+      final shelf.Cascade cascade =
+          shelf.Cascade().add(dwds.handler).add(dwdsHandler);
       shelf.serveRequests(httpServer, cascade.handler);
       server.dwds = dwds;
       return server;
@@ -293,6 +296,7 @@
   Uint8List getMetadata(String path) => _metadataFiles[path];
 
   @visibleForTesting
+
   /// The base path to serve from.
   ///
   /// It should have no leading or trailing slashes.
@@ -325,9 +329,10 @@
 
     // If this is a JavaScript file, it must be in the in-memory cache.
     // Attempt to look up the file by URI.
-    final String webServerPath = requestPath.replaceFirst('.dart.js', '.dart.lib.js');
+    final String webServerPath =
+        requestPath.replaceFirst('.dart.js', '.dart.lib.js');
     if (_files.containsKey(requestPath) || _files.containsKey(webServerPath)) {
-      final List<int> bytes = getFile(requestPath)  ?? getFile(webServerPath);
+      final List<int> bytes = getFile(requestPath) ?? getFile(webServerPath);
       // Use the underlying buffer hashCode as a revision string. This buffer is
       // replaced whenever the frontend_server produces new output files, which
       // will also change the hashCode.
@@ -373,15 +378,18 @@
     // If all of the lookups above failed, the file might have been an asset.
     // Try and resolve the path relative to the built asset directory.
     if (!file.existsSync()) {
-      final Uri potential = globals.fs.directory(getAssetBuildDirectory())
-        .uri.resolve(requestPath.replaceFirst('assets/', ''));
+      final Uri potential = globals.fs
+          .directory(getAssetBuildDirectory())
+          .uri
+          .resolve(requestPath.replaceFirst('assets/', ''));
       file = globals.fs.file(potential);
     }
 
     if (!file.existsSync()) {
       final Uri webPath = globals.fs.currentDirectory
-        .childDirectory('web')
-        .uri.resolve(requestPath);
+          .childDirectory('web')
+          .uri
+          .resolve(requestPath);
       file = globals.fs.file(webPath);
     }
 
@@ -396,8 +404,8 @@
 
     // For real files, use a serialized file stat plus path as a revision.
     // This allows us to update between canvaskit and non-canvaskit SDKs.
-    final String etag = file.lastModifiedSync().toIso8601String()
-      + Uri.encodeComponent(file.path);
+    final String etag = file.lastModifiedSync().toIso8601String() +
+        Uri.encodeComponent(file.path);
     if (ifNoneMatch == etag) {
       return shelf.Response.notModified();
     }
@@ -438,24 +446,26 @@
   ///
   /// Returns a list of updated modules.
   List<String> write(
-      File codeFile,
-      File manifestFile,
-      File sourcemapFile,
-      File metadataFile) {
+      File codeFile, File manifestFile, File sourcemapFile, File metadataFile) {
     final List<String> modules = <String>[];
     final Uint8List codeBytes = codeFile.readAsBytesSync();
     final Uint8List sourcemapBytes = sourcemapFile.readAsBytesSync();
     final Uint8List metadataBytes = metadataFile.readAsBytesSync();
-    final Map<String, dynamic> manifest = castStringKeyedMap(json.decode(manifestFile.readAsStringSync()));
+    final Map<String, dynamic> manifest =
+        castStringKeyedMap(json.decode(manifestFile.readAsStringSync()));
     for (final String filePath in manifest.keys) {
       if (filePath == null) {
         globals.printTrace('Invalid manfiest file: $filePath');
         continue;
       }
-      final Map<String, dynamic> offsets = castStringKeyedMap(manifest[filePath]);
-      final List<int> codeOffsets = (offsets['code'] as List<dynamic>).cast<int>();
-      final List<int> sourcemapOffsets = (offsets['sourcemap'] as List<dynamic>).cast<int>();
-      final List<int> metadataOffsets = (offsets['metadata'] as List<dynamic>).cast<int>();
+      final Map<String, dynamic> offsets =
+          castStringKeyedMap(manifest[filePath]);
+      final List<int> codeOffsets =
+          (offsets['code'] as List<dynamic>).cast<int>();
+      final List<int> sourcemapOffsets =
+          (offsets['sourcemap'] as List<dynamic>).cast<int>();
+      final List<int> metadataOffsets =
+          (offsets['metadata'] as List<dynamic>).cast<int>();
       if (codeOffsets.length != 2 ||
           sourcemapOffsets.length != 2 ||
           metadataOffsets.length != 2) {
@@ -474,15 +484,15 @@
         codeStart,
         codeEnd - codeStart,
       );
-      final String fileName = filePath.startsWith('/')
-        ? filePath.substring(1)
-        : filePath;
+      final String fileName =
+          filePath.startsWith('/') ? filePath.substring(1) : filePath;
       _files[fileName] = byteView;
 
       final int sourcemapStart = sourcemapOffsets[0];
       final int sourcemapEnd = sourcemapOffsets[1];
       if (sourcemapStart < 0 || sourcemapEnd > sourcemapBytes.lengthInBytes) {
-        globals.printTrace('Invalid byte index: [$sourcemapStart, $sourcemapEnd]');
+        globals
+            .printTrace('Invalid byte index: [$sourcemapStart, $sourcemapEnd]');
         continue;
       }
       final Uint8List sourcemapView = Uint8List.view(
@@ -496,7 +506,8 @@
       final int metadataStart = metadataOffsets[0];
       final int metadataEnd = metadataOffsets[1];
       if (metadataStart < 0 || metadataEnd > metadataBytes.lengthInBytes) {
-        globals.printTrace('Invalid byte index: [$metadataStart, $metadataEnd]');
+        globals
+            .printTrace('Invalid byte index: [$metadataStart, $metadataEnd]');
         continue;
       }
       final Uint8List metadataView = Uint8List.view(
@@ -511,8 +522,8 @@
     }
 
     _mergedMetadata = _metadataFiles.values
-      .map((Uint8List encoded) => utf8.decode(encoded))
-      .join('\n');
+        .map((Uint8List encoded) => utf8.decode(encoded))
+        .join('\n');
 
     return modules;
   }
@@ -525,11 +536,12 @@
       HttpHeaders.contentTypeHeader: 'text/html',
     };
     final File indexFile = globals.fs.currentDirectory
-      .childDirectory('web')
-      .childFile('index.html');
+        .childDirectory('web')
+        .childFile('index.html');
 
     if (indexFile.existsSync()) {
-      headers[HttpHeaders.contentLengthHeader] = indexFile.lengthSync().toString();
+      headers[HttpHeaders.contentLengthHeader] =
+          indexFile.lengthSync().toString();
       return shelf.Response.ok(indexFile.openRead(), headers: headers);
     }
 
@@ -544,23 +556,30 @@
       case 'dart_sdk.js':
         if (_buildInfo.nullSafetyMode == NullSafetyMode.unsound) {
           return globals.fs.file(canvasKitRendering
-            ? globals.artifacts.getArtifactPath(Artifact.webPrecompiledCanvaskitSdk)
-            : globals.artifacts.getArtifactPath(Artifact.webPrecompiledSdk));
+              ? globals.artifacts
+                  .getArtifactPath(Artifact.webPrecompiledCanvaskitSdk)
+              : globals.artifacts.getArtifactPath(Artifact.webPrecompiledSdk));
         } else {
           return globals.fs.file(canvasKitRendering
-            ? globals.artifacts.getArtifactPath(Artifact.webPrecompiledCanvaskitSoundSdk)
-            : globals.artifacts.getArtifactPath(Artifact.webPrecompiledSoundSdk));
+              ? globals.artifacts
+                  .getArtifactPath(Artifact.webPrecompiledCanvaskitSoundSdk)
+              : globals.artifacts
+                  .getArtifactPath(Artifact.webPrecompiledSoundSdk));
         }
         break;
       case 'dart_sdk.js.map':
         if (_buildInfo.nullSafetyMode == NullSafetyMode.unsound) {
           return globals.fs.file(canvasKitRendering
-            ? globals.artifacts.getArtifactPath(Artifact.webPrecompiledCanvaskitSdkSourcemaps)
-            : globals.artifacts.getArtifactPath(Artifact.webPrecompiledSdkSourcemaps));
+              ? globals.artifacts.getArtifactPath(
+                  Artifact.webPrecompiledCanvaskitSdkSourcemaps)
+              : globals.artifacts
+                  .getArtifactPath(Artifact.webPrecompiledSdkSourcemaps));
         } else {
           return globals.fs.file(canvasKitRendering
-            ? globals.artifacts.getArtifactPath(Artifact.webPrecompiledCanvaskitSoundSdkSourcemaps)
-            : globals.artifacts.getArtifactPath(Artifact.webPrecompiledSoundSdkSourcemaps));
+              ? globals.artifacts.getArtifactPath(
+                  Artifact.webPrecompiledCanvaskitSoundSdkSourcemaps)
+              : globals.artifacts
+                  .getArtifactPath(Artifact.webPrecompiledSoundSdkSourcemaps));
         }
     }
     // This is the special generated entrypoint.
@@ -571,7 +590,8 @@
     // If this is a dart file, it must be on the local file system and is
     // likely coming from a source map request. The tool doesn't currently
     // consider the case of Dart files as assets.
-    final File dartFile = globals.fs.file(globals.fs.currentDirectory.uri.resolve(path));
+    final File dartFile =
+        globals.fs.file(globals.fs.currentDirectory.uri.resolve(path));
     if (dartFile.existsSync()) {
       return dartFile;
     }
@@ -584,8 +604,8 @@
     // The file might have been a package file which is signaled by a
     // `/packages/<package>/<path>` request.
     if (segments.first == 'packages') {
-      final Uri filePath = _packages.resolve(Uri(
-        scheme: 'package', pathSegments: segments.skip(1)));
+      final Uri filePath = _packages
+          .resolve(Uri(scheme: 'package', pathSegments: segments.skip(1)));
       if (filePath != null) {
         final File packageFile = globals.fs.file(filePath);
         if (packageFile.existsSync()) {
@@ -596,15 +616,16 @@
 
     // Otherwise it must be a Dart SDK source or a Flutter Web SDK source.
     final Directory dartSdkParent = globals.fs
-      .directory(globals.artifacts.getArtifactPath(Artifact.engineDartSdkPath))
-      .parent;
+        .directory(
+            globals.artifacts.getArtifactPath(Artifact.engineDartSdkPath))
+        .parent;
     final File dartSdkFile = globals.fs.file(dartSdkParent.uri.resolve(path));
     if (dartSdkFile.existsSync()) {
       return dartSdkFile;
     }
 
-    final Directory flutterWebSdk = globals.fs.directory(globals.artifacts
-      .getArtifactPath(Artifact.flutterWebSdk));
+    final Directory flutterWebSdk = globals.fs
+        .directory(globals.artifacts.getArtifactPath(Artifact.flutterWebSdk));
     final File webSdkFile = globals.fs.file(flutterWebSdk.uri.resolve(path));
 
     return webSdkFile;
@@ -693,16 +714,20 @@
   ///
   /// Only calls [AppConnection.runMain] on the subsequent connections.
   Future<ConnectionResult> connect(bool useDebugExtension) {
-    final Completer<ConnectionResult> firstConnection = Completer<ConnectionResult>();
-    _connectedApps = dwds.connectedApps.listen((AppConnection appConnection) async {
+    final Completer<ConnectionResult> firstConnection =
+        Completer<ConnectionResult>();
+    _connectedApps =
+        dwds.connectedApps.listen((AppConnection appConnection) async {
       try {
         final DebugConnection debugConnection = useDebugExtension
-          ? await (_cachedExtensionFuture ??= dwds.extensionDebugConnections.stream.first)
-          : await dwds.debugConnection(appConnection);
+            ? await (_cachedExtensionFuture ??=
+                dwds.extensionDebugConnections.stream.first)
+            : await dwds.debugConnection(appConnection);
         if (firstConnection.isCompleted) {
           appConnection.runMain();
         } else {
-          firstConnection.complete(ConnectionResult(appConnection, debugConnection));
+          firstConnection
+              .complete(ConnectionResult(appConnection, debugConnection));
         }
       } on Exception catch (error, stackTrace) {
         if (!firstConnection.isCompleted) {
@@ -710,7 +735,8 @@
         }
       }
     }, onError: (dynamic error, StackTrace stackTrace) {
-      globals.printError('Unknown error while waiting for debug connection:$error\n$stackTrace');
+      globals.printError(
+          'Unknown error while waiting for debug connection:$error\n$stackTrace');
       if (!firstConnection.isCompleted) {
         firstConnection.completeError(error, stackTrace);
       }
@@ -802,15 +828,20 @@
     final String outputDirectoryPath = mainFile.parent.path;
 
     if (bundleFirstUpload) {
-      webAssetServer.entrypointCacheDirectory = globals.fs.directory(outputDirectoryPath);
+      webAssetServer.entrypointCacheDirectory =
+          globals.fs.directory(outputDirectoryPath);
       generator.addFileSystemRoot(outputDirectoryPath);
       final String entrypoint = globals.fs.path.basename(mainFile.path);
       webAssetServer.writeBytes(entrypoint, mainFile.readAsBytesSync());
       webAssetServer.writeBytes('require.js', requireJS.readAsBytesSync());
-      webAssetServer.writeBytes('stack_trace_mapper.js', stackTraceMapper.readAsBytesSync());
-      webAssetServer.writeFile('manifest.json', '{"info":"manifest not generated in run mode."}');
-      webAssetServer.writeFile('flutter_service_worker.js', '// Service worker not loaded in run mode.');
-      webAssetServer.writeFile('version.json', FlutterProject.current().getVersionInfo());
+      webAssetServer.writeBytes(
+          'stack_trace_mapper.js', stackTraceMapper.readAsBytesSync());
+      webAssetServer.writeFile(
+          'manifest.json', '{"info":"manifest not generated in run mode."}');
+      webAssetServer.writeFile('flutter_service_worker.js',
+          '// Service worker not loaded in run mode.');
+      webAssetServer.writeFile(
+          'version.json', FlutterProject.current().getVersionInfo());
       webAssetServer.writeFile(
         'main.dart.js',
         generateBootstrapScript(
@@ -850,7 +881,8 @@
       ),
       invalidatedFiles,
       outputPath: dillOutputPath ??
-        getDefaultApplicationKernelPath(trackWidgetCreation: trackWidgetCreation),
+          getDefaultApplicationKernelPath(
+              trackWidgetCreation: trackWidgetCreation),
       packageConfig: packageConfig,
     );
     if (compilerOutput == null || compilerOutput.errorCount > 0) {
@@ -867,12 +899,18 @@
     File metadataFile;
     List<String> modules;
     try {
-      final Directory parentDirectory = globals.fs.directory(outputDirectoryPath);
-      codeFile = parentDirectory.childFile('${compilerOutput.outputFilename}.sources');
-      manifestFile = parentDirectory.childFile('${compilerOutput.outputFilename}.json');
-      sourcemapFile = parentDirectory.childFile('${compilerOutput.outputFilename}.map');
-      metadataFile = parentDirectory.childFile('${compilerOutput.outputFilename}.metadata');
-      modules = webAssetServer.write(codeFile, manifestFile, sourcemapFile, metadataFile);
+      final Directory parentDirectory =
+          globals.fs.directory(outputDirectoryPath);
+      codeFile =
+          parentDirectory.childFile('${compilerOutput.outputFilename}.sources');
+      manifestFile =
+          parentDirectory.childFile('${compilerOutput.outputFilename}.json');
+      sourcemapFile =
+          parentDirectory.childFile('${compilerOutput.outputFilename}.map');
+      metadataFile = parentDirectory
+          .childFile('${compilerOutput.outputFilename}.metadata');
+      modules = webAssetServer.write(
+          codeFile, manifestFile, sourcemapFile, metadataFile);
     } on FileSystemException catch (err) {
       throwToolExit('Failed to load recompiled sources:\n$err');
     }
@@ -910,17 +948,19 @@
 }
 
 class ReleaseAssetServer {
-  ReleaseAssetServer(this.entrypoint, {
+  ReleaseAssetServer(
+    this.entrypoint, {
     @required FileSystem fileSystem,
     @required String webBuildDirectory,
     @required String flutterRoot,
     @required Platform platform,
     this.basePath = '',
-  }) : _fileSystem = fileSystem,
-       _platform = platform,
-       _flutterRoot = flutterRoot,
-       _webBuildDirectory = webBuildDirectory,
-       _fileSystemUtils = FileSystemUtils(fileSystem: fileSystem, platform: platform);
+  })  : _fileSystem = fileSystem,
+        _platform = platform,
+        _flutterRoot = flutterRoot,
+        _webBuildDirectory = webBuildDirectory,
+        _fileSystemUtils =
+            FileSystemUtils(fileSystem: fileSystem, platform: platform);
 
   final Uri entrypoint;
   final String _flutterRoot;
@@ -930,6 +970,7 @@
   final Platform _platform;
 
   @visibleForTesting
+
   /// The base path to serve from.
   ///
   /// It should have no leading or trailing slashes.
@@ -937,12 +978,12 @@
 
   // Locations where source files, assets, or source maps may be located.
   List<Uri> _searchPaths() => <Uri>[
-    _fileSystem.directory(_webBuildDirectory).uri,
-    _fileSystem.directory(_flutterRoot).uri,
-    _fileSystem.directory(_flutterRoot).parent.uri,
-    _fileSystem.currentDirectory.uri,
-    _fileSystem.directory(_fileSystemUtils.homeDirPath).uri,
-  ];
+        _fileSystem.directory(_webBuildDirectory).uri,
+        _fileSystem.directory(_flutterRoot).uri,
+        _fileSystem.directory(_flutterRoot).parent.uri,
+        _fileSystem.currentDirectory.uri,
+        _fileSystem.directory(_fileSystemUtils.homeDirPath).uri,
+      ];
 
   Future<shelf.Response> handle(shelf.Request request) async {
     if (request.method != 'GET') {
@@ -962,8 +1003,9 @@
     } else {
       for (final Uri uri in _searchPaths()) {
         final Uri potential = uri.resolve(requestPath);
-        if (potential == null || !_fileSystem.isFileSync(
-          potential.toFilePath(windows: _platform.isWindows))) {
+        if (potential == null ||
+            !_fileSystem.isFileSync(
+                potential.toFilePath(windows: _platform.isWindows))) {
           continue;
         }
         fileUri = potential;
@@ -975,24 +1017,28 @@
       final Uint8List bytes = file.readAsBytesSync();
       // Fallback to "application/octet-stream" on null which
       // makes no claims as to the structure of the data.
-      final String mimeType = mime.lookupMimeType(file.path, headerBytes: bytes)
-        ?? 'application/octet-stream';
+      final String mimeType =
+          mime.lookupMimeType(file.path, headerBytes: bytes) ??
+              'application/octet-stream';
       return shelf.Response.ok(bytes, headers: <String, String>{
         'Content-Type': mimeType,
       });
     }
 
-    final File file = _fileSystem.file(_fileSystem.path.join(_webBuildDirectory, 'index.html'));
+    final File file = _fileSystem
+        .file(_fileSystem.path.join(_webBuildDirectory, 'index.html'));
     return shelf.Response.ok(file.readAsBytesSync(), headers: <String, String>{
       'Content-Type': 'text/html',
     });
   }
 }
 
-Future<Directory> _loadDwdsDirectory(FileSystem fileSystem, Logger logger) async {
-  final String toolPackagePath = fileSystem.path.join(
-      Cache.flutterRoot, 'packages', 'flutter_tools');
-  final String packageFilePath = fileSystem.path.join(toolPackagePath, kPackagesFileName);
+Future<Directory> _loadDwdsDirectory(
+    FileSystem fileSystem, Logger logger) async {
+  final String toolPackagePath =
+      fileSystem.path.join(Cache.flutterRoot, 'packages', 'flutter_tools');
+  final String packageFilePath =
+      fileSystem.path.join(toolPackagePath, kPackagesFileName);
   final PackageConfig packageConfig = await loadPackageConfigWithLogging(
     fileSystem.file(packageFilePath),
     logger: logger,
@@ -1026,13 +1072,13 @@
 }
 
 String _parseBasePathFromIndexHtml(File indexHtml) {
-  final String htmlContent = indexHtml.existsSync()
-      ? indexHtml.readAsStringSync()
-      : _kDefaultIndex;
+  final String htmlContent =
+      indexHtml.existsSync() ? indexHtml.readAsStringSync() : _kDefaultIndex;
 
   final Document document = parse(htmlContent);
   final Element baseElement = document.querySelector('base');
-  String baseHref = baseElement?.attributes == null ? null : baseElement.attributes['href'];
+  String baseHref =
+      baseElement?.attributes == null ? null : baseElement.attributes['href'];
 
   if (baseHref == null) {
     baseHref = '';
diff --git a/packages/flutter_tools/pubspec.yaml b/packages/flutter_tools/pubspec.yaml
index d10b5a2..d5baa02 100644
--- a/packages/flutter_tools/pubspec.yaml
+++ b/packages/flutter_tools/pubspec.yaml
@@ -12,7 +12,7 @@
   archive: 2.0.13
   args: 1.6.0
   dds: 1.4.1
-  dwds: 6.0.0
+  dwds: 7.0.0
   completion: 0.2.2
   coverage: 0.14.1
   crypto: 2.1.5