Move widget_preview_scaffold into pub workspace (flutter#185176)

This reverts commit e38a002.

Fixes flutter#185161

Author: bkonyi

dev/integration_tests/widget_preview_scaffold/pubspec.yaml

@@ -1,71 +1,33 @@
 name: widget_preview_scaffold
 description: Scaffolding for Flutter Widget Previews
-publish_to: "none"
-version: 0.0.1
 
 environment:
   sdk: ^3.10.0-0
 
+resolution: workspace
+
 dependencies:
   flutter:
     sdk: flutter
-  flutter_test:
-    sdk: flutter
-  # These will be replaced with proper constraints after the template is hydrated.
-  dtd: 4.0.0
-  flutter_lints: 6.0.0
-  google_fonts: 6.3.3
-  json_rpc_2: 4.1.0
-  path: 1.9.1
-  stack_trace: 1.12.1
-  url_launcher: 6.3.2
 
-  async: 2.13.1
-  boolean_selector: 2.1.2
-  characters: 1.4.1
-  clock: 1.1.2
-  collection: 1.19.1
-  convert: 3.1.2
-  crypto: 3.0.7
-  fake_async: 1.3.3
-  file: 7.0.1
-  http: 1.6.0
-  http_parser: 4.1.2
-  leak_tracker: 11.0.2
-  leak_tracker_flutter_testing: 3.0.10
-  leak_tracker_testing: 3.0.2
-  lints: 6.1.0
-  matcher: 0.12.19
-  material_color_utilities: 0.13.0
-  meta: 1.18.0
-  plugin_platform_interface: 2.1.8
-  source_span: 1.10.2
-  stream_channel: 2.1.4
-  string_scanner: 1.4.1
-  term_glyph: 1.2.2
-  test_api: 0.7.11
-  typed_data: 1.4.0
-  unified_analytics: 8.0.14
-  url_launcher_android: 6.3.29
-  url_launcher_ios: 6.4.1
-  url_launcher_linux: 3.2.2
-  url_launcher_macos: 3.2.5
-  url_launcher_platform_interface: 2.3.2
-  url_launcher_web: 2.4.2
-  url_launcher_windows: 3.1.5
-  vector_math: 2.2.0
-  vm_service: 15.0.2
-  web: 1.1.1
-  web_socket: 1.0.1
-  web_socket_channel: 3.0.3
-  webview_flutter: 4.9.0
-  webview_flutter_web: ^0.2.3+4
+  dtd: any
+  file: any
+  google_fonts: any
+  json_rpc_2: any
+  path: any
+  stack_trace: any
+  url_launcher: any
+  web: any
+  webview_flutter: any
 
 dev_dependencies:
   flutter_tools:
     path: ../../../packages/flutter_tools/
-  test: 1.31.0
+  test: any
+  flutter_test:
+    sdk: flutter
 
 flutter:
   uses-material-design: true
-# PUBSPEC CHECKSUM: ciq2fr
+
+# PUBSPEC CHECKSUM: 7554df

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

@@ -172,14 +172,6 @@ class UpdatePackagesCommand extends FlutterCommand {
       rootDirectory.childDirectory('packages').childDirectory('flutter_tools'),
     );
 
-    // This package is intentionally not part of the workspace as it's a rehydrated template.
-    final FlutterProject widgetPreviewScaffoldProject = FlutterProject.fromDirectory(
-      rootProject.directory
-          .childDirectory('dev')
-          .childDirectory('integration_tests')
-          .childDirectory('widget_preview_scaffold'),
-    );
-
     // This package is intentionally not part of the workspace to test
     // user-defines in its local pubspec.
     final Directory hooksUserDefineIntegrationTestDirectory = rootDirectory
@@ -214,16 +206,10 @@ class UpdatePackagesCommand extends FlutterCommand {
         final List<_ProjectDeps> toolDeps = await _upgrade(
           forceUpgrade: forceUpgrade,
           cherryPicks: cherryPicks,
-          // Since the widget_preview_scaffold depends on the Flutter SDK and flutter_tools, we
-          // need to make sure that flutter_tools uses the same versions for packages that are also
+          // Ensure that flutter_tools uses the same versions for packages that are also
           // used by the Flutter SDK.
           pinned: deps.toVersions(),
-          projects: [
-            // The widget_preview_scaffold project has a path dependency on flutter_tools, so we must
-            // upgrade the projects together.
-            toolProject,
-            widgetPreviewScaffoldProject,
-          ],
+          projects: <FlutterProject>[toolProject],
           relaxToAny: relaxToAny,
         );
         for (final (:project, :deps) in toolDeps) {
@@ -245,7 +231,6 @@ class UpdatePackagesCommand extends FlutterCommand {
     // Manually do a pub get for packages not part of the workspace.
     // See https://github.com/flutter/flutter/pull/170364.
     await _pubGet(toolProject, false);
-    await _pubGet(widgetPreviewScaffoldProject, false);
     await _pubGet(FlutterProject.fromDirectory(hooksUserDefineIntegrationTestDirectory), false);
 
     await _downloadCoverageData();

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

@@ -337,14 +337,6 @@ void main() {
                 ))
               .dependencies,
         );
-        expect(
-          pub.pubspecs[widgetPreviewScaffold.absolute.path]!.first.dependencies,
-          (Pubspec.parse(kWidgetTestPubspecYaml)
-                ..dependencies['unified_analytics'] = HostedDependency(
-                  version: VersionConstraint.parse('8.0.10'),
-                ))
-              .dependencies,
-        );
       },
       overrides: <Type, Generator>{
         Pub: () => pub,