diff --git a/dev/automated_tests/pubspec.yaml b/dev/automated_tests/pubspec.yaml
index c9c2dc5991..2fffc2419b 100644
--- a/dev/automated_tests/pubspec.yaml
+++ b/dev/automated_tests/pubspec.yaml
@@ -12,7 +12,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -65,4 +65,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 5cc4
+# PUBSPEC CHECKSUM: f3c5
diff --git a/dev/benchmarks/complex_layout/pubspec.yaml b/dev/benchmarks/complex_layout/pubspec.yaml
index becfef6306..3b0c7e4ecd 100644
--- a/dev/benchmarks/complex_layout/pubspec.yaml
+++ b/dev/benchmarks/complex_layout/pubspec.yaml
@@ -43,7 +43,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   csslib: 0.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   front_end: 0.1.18 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -82,4 +82,4 @@ flutter:
     - packages/flutter_gallery_assets/people/square/ali.png
     - packages/flutter_gallery_assets/places/india_chettinad_silk_maker.png
 
-# PUBSPEC CHECKSUM: f699
+# PUBSPEC CHECKSUM: f69a
diff --git a/dev/benchmarks/macrobenchmarks/pubspec.yaml b/dev/benchmarks/macrobenchmarks/pubspec.yaml
index f12d528aa5..f7f56ec595 100644
--- a/dev/benchmarks/macrobenchmarks/pubspec.yaml
+++ b/dev/benchmarks/macrobenchmarks/pubspec.yaml
@@ -43,7 +43,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   csslib: 0.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   front_end: 0.1.18 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -79,4 +79,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: f699
+# PUBSPEC CHECKSUM: f69a
diff --git a/dev/benchmarks/microbenchmarks/pubspec.yaml b/dev/benchmarks/microbenchmarks/pubspec.yaml
index 64dfdf336b..a18484d9aa 100644
--- a/dev/benchmarks/microbenchmarks/pubspec.yaml
+++ b/dev/benchmarks/microbenchmarks/pubspec.yaml
@@ -16,7 +16,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -73,4 +73,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: ce27
+# PUBSPEC CHECKSUM: 1128
diff --git a/dev/bots/pubspec.yaml b/dev/bots/pubspec.yaml
index 0fa88143f6..3b047a63fb 100644
--- a/dev/bots/pubspec.yaml
+++ b/dev/bots/pubspec.yaml
@@ -7,7 +7,7 @@ environment:
 
 dependencies:
   path: 1.6.2
-  args: 1.5.1
+  args: 1.5.2
   meta: 1.1.6
   process: 3.0.9
   platform: 2.2.0
@@ -64,7 +64,7 @@ dependencies:
   yaml: 2.1.15 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
 dev_dependencies:
-  mockito: 4.0.0
+  mockito: 4.1.0
   test_api: 0.2.5
 
-# PUBSPEC CHECKSUM: 7f9d
+# PUBSPEC CHECKSUM: ee9f
diff --git a/dev/devicelab/bin/tasks/linux_chrome_dev_mode.dart b/dev/devicelab/bin/tasks/linux_chrome_dev_mode.dart
new file mode 100644
index 0000000000..a11b0ab96e
--- /dev/null
+++ b/dev/devicelab/bin/tasks/linux_chrome_dev_mode.dart
@@ -0,0 +1,10 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/tasks/web_dev_mode_tests.dart';
+
+Future<void> main() async {
+  await task(createWebDevModeTest());
+}
diff --git a/dev/devicelab/bin/tasks/macos_chrome_dev_mode.dart b/dev/devicelab/bin/tasks/macos_chrome_dev_mode.dart
new file mode 100644
index 0000000000..a11b0ab96e
--- /dev/null
+++ b/dev/devicelab/bin/tasks/macos_chrome_dev_mode.dart
@@ -0,0 +1,10 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/tasks/web_dev_mode_tests.dart';
+
+Future<void> main() async {
+  await task(createWebDevModeTest());
+}
diff --git a/dev/devicelab/bin/tasks/windows_chrome_dev_mode.dart b/dev/devicelab/bin/tasks/windows_chrome_dev_mode.dart
new file mode 100644
index 0000000000..a11b0ab96e
--- /dev/null
+++ b/dev/devicelab/bin/tasks/windows_chrome_dev_mode.dart
@@ -0,0 +1,10 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/tasks/web_dev_mode_tests.dart';
+
+Future<void> main() async {
+  await task(createWebDevModeTest());
+}
diff --git a/dev/devicelab/lib/tasks/web_dev_mode_tests.dart b/dev/devicelab/lib/tasks/web_dev_mode_tests.dart
new file mode 100644
index 0000000000..5a5628f0d1
--- /dev/null
+++ b/dev/devicelab/lib/tasks/web_dev_mode_tests.dart
@@ -0,0 +1,139 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+import '../framework/framework.dart';
+import '../framework/utils.dart';
+
+final Directory _editedFlutterGalleryDir = dir(path.join(Directory.systemTemp.path, 'edited_flutter_gallery'));
+final Directory flutterGalleryDir = dir(path.join(flutterDirectory.path, 'examples/flutter_gallery'));
+
+TaskFunction createWebDevModeTest() {
+  return () async {
+    final List<String> options = <String>[
+      '--hot', '-d', 'web', '--verbose', '--resident', '--target=lib/main_web.dart',
+    ];
+    setLocalEngineOptionIfNecessary(options);
+    int hotRestartCount = 0;
+    await inDirectory<void>(flutterDirectory, () async {
+      rmTree(_editedFlutterGalleryDir);
+      mkdirs(_editedFlutterGalleryDir);
+      recursiveCopy(flutterGalleryDir, _editedFlutterGalleryDir);
+      await inDirectory<void>(_editedFlutterGalleryDir, () async {
+        {
+          final Process packagesGet = await startProcess(
+              path.join(flutterDirectory.path, 'bin', 'flutter'),
+              <String>['packages', 'get'],
+              environment: <String, String>{
+                'FLUTTER_WEB': 'true',
+              },
+          );
+          await packagesGet.exitCode;
+          final Process process = await startProcess(
+              path.join(flutterDirectory.path, 'bin', 'flutter'),
+              <String>['run']..addAll(options),
+              environment: <String, String>{
+                'FLUTTER_WEB': 'true',
+              },
+          );
+
+          final Completer<void> stdoutDone = Completer<void>();
+          final Completer<void> stderrDone = Completer<void>();
+          process.stdout
+              .transform<String>(utf8.decoder)
+              .transform<String>(const LineSplitter())
+              .listen((String line) {
+            if (line.contains('To hot restart')) {
+              process.stdin.write('R');
+            }
+            if (line.contains('Restarted')) {
+              if (hotRestartCount == 0) {
+                // Update the file and reload again.
+                final File appDartSource = file(path.join(
+                    _editedFlutterGalleryDir.path, 'lib/gallery/app.dart',
+                ));
+                appDartSource.writeAsStringSync(
+                    appDartSource.readAsStringSync().replaceFirst(
+                        "'Flutter Gallery'", "'Updated Flutter Gallery'",
+                    )
+                );
+                process.stdin.writeln('R');
+                ++hotRestartCount;
+              } else {
+                // Quit after second hot restart.
+                process.stdin.writeln('q');
+              }
+            }
+            print('stdout: $line');
+          }, onDone: () {
+            stdoutDone.complete();
+          });
+          process.stderr
+              .transform<String>(utf8.decoder)
+              .transform<String>(const LineSplitter())
+              .listen((String line) {
+            print('stderr: $line');
+          }, onDone: () {
+            stderrDone.complete();
+          });
+
+          await Future.wait<void>(<Future<void>>[
+            stdoutDone.future,
+            stderrDone.future,
+          ]);
+          await process.exitCode;
+
+        }
+
+        // Start `flutter run` again to make sure it loads from the previous
+        // state. dev compilers loads up from previously compiled JavaScript.
+        {
+          final Process process = await startProcess(
+              path.join(flutterDirectory.path, 'bin', 'flutter'),
+              <String>['run']..addAll(options),
+              environment: <String, String>{
+                'FLUTTER_WEB': 'true',
+              },
+          );
+          final Completer<void> stdoutDone = Completer<void>();
+          final Completer<void> stderrDone = Completer<void>();
+          process.stdout
+              .transform<String>(utf8.decoder)
+              .transform<String>(const LineSplitter())
+              .listen((String line) {
+            if (line.contains('To hot restart')) {
+              process.stdin.write('R');
+            }
+            if (line.contains('Restarted')) {
+              process.stdin.writeln('q');
+            }
+            print('stdout: $line');
+          }, onDone: () {
+            stdoutDone.complete();
+          });
+          process.stderr
+              .transform<String>(utf8.decoder)
+              .transform<String>(const LineSplitter())
+              .listen((String line) {
+            print('stderr: $line');
+          }, onDone: () {
+            stderrDone.complete();
+          });
+
+          await Future.wait<void>(<Future<void>>[
+            stdoutDone.future,
+            stderrDone.future,
+          ]);
+          await process.exitCode;
+        }
+      });
+    });
+    return TaskResult.success(null);
+  };
+}
diff --git a/dev/devicelab/manifest.yaml b/dev/devicelab/manifest.yaml
index 0c976c9b95..e8ec205d8b 100644
--- a/dev/devicelab/manifest.yaml
+++ b/dev/devicelab/manifest.yaml
@@ -125,6 +125,13 @@ tasks:
     stage: devicelab_win
     required_agent_capabilities: ["windows/android"]
 
+  windows_chrome_dev_mode:
+    description: >
+      Run flutter web on the devicelab and hot restart.
+    stage: devicelab_win
+    required_agent_capabilities: ["windows/android"]
+    flaky: true
+
   # Android on-device tests
 
   complex_layout_scroll_perf__timeline_summary:
@@ -324,6 +331,13 @@ tasks:
     stage: devicelab
     required_agent_capabilities: ["linux/android"]
 
+  linux_chrome_dev_mode:
+    description: >
+      Run flutter web on the devicelab and hot restart.
+    stage: devicelab_win
+    required_agent_capabilities: ["linux/android"]
+    flaky: true
+
   # iOS on-device tests
 
   flavors_test_ios:
@@ -421,6 +435,13 @@ tasks:
     stage: devicelab_ios
     required_agent_capabilities: ["mac/ios"]
 
+  macos_chrome_dev_mode:
+    description: >
+      Run flutter web on the devicelab and hot restart.
+    stage: devicelab_win
+    required_agent_capabilities: ["mac/ios"]
+    flaky: true
+
   # Tests running on Windows host
 
   flavors_test_win:
diff --git a/dev/devicelab/pubspec.yaml b/dev/devicelab/pubspec.yaml
index db2cd556fd..7720b330a7 100644
--- a/dev/devicelab/pubspec.yaml
+++ b/dev/devicelab/pubspec.yaml
@@ -8,7 +8,7 @@ environment:
   sdk: ">=2.0.0-dev.68.0 <3.0.0"
 
 dependencies:
-  args: 1.5.1
+  args: 1.5.2
   file: 5.0.8
   image: 2.1.3
   meta: 1.1.6
@@ -73,4 +73,4 @@ dev_dependencies:
   watcher: 0.9.7+10 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   yaml: 2.1.15 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: b018
+# PUBSPEC CHECKSUM: e419
diff --git a/dev/integration_tests/android_semantics_testing/pubspec.yaml b/dev/integration_tests/android_semantics_testing/pubspec.yaml
index 571f789961..dd9f6acac6 100644
--- a/dev/integration_tests/android_semantics_testing/pubspec.yaml
+++ b/dev/integration_tests/android_semantics_testing/pubspec.yaml
@@ -9,7 +9,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -63,4 +63,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/android_views/pubspec.yaml b/dev/integration_tests/android_views/pubspec.yaml
index bf9e305910..74356bdac2 100644
--- a/dev/integration_tests/android_views/pubspec.yaml
+++ b/dev/integration_tests/android_views/pubspec.yaml
@@ -40,7 +40,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   csslib: 0.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   front_end: 0.1.18 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -76,4 +76,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 10be
+# PUBSPEC CHECKSUM: fdbf
diff --git a/dev/integration_tests/channels/pubspec.yaml b/dev/integration_tests/channels/pubspec.yaml
index 150a7685df..a0a74cdceb 100644
--- a/dev/integration_tests/channels/pubspec.yaml
+++ b/dev/integration_tests/channels/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -67,4 +67,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/codegen/pubspec.yaml b/dev/integration_tests/codegen/pubspec.yaml
index 229c3e4f0f..baca4ae8db 100644
--- a/dev/integration_tests/codegen/pubspec.yaml
+++ b/dev/integration_tests/codegen/pubspec.yaml
@@ -35,7 +35,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   csslib: 0.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   front_end: 0.1.18 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -74,4 +74,4 @@ builders:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/external_ui/pubspec.yaml b/dev/integration_tests/external_ui/pubspec.yaml
index 17e47393b1..8827df8515 100644
--- a/dev/integration_tests/external_ui/pubspec.yaml
+++ b/dev/integration_tests/external_ui/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -67,4 +67,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/flavors/pubspec.yaml b/dev/integration_tests/flavors/pubspec.yaml
index 8ef036a1f0..d6a9adaca7 100644
--- a/dev/integration_tests/flavors/pubspec.yaml
+++ b/dev/integration_tests/flavors/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -67,4 +67,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/image_loading/pubspec.yaml b/dev/integration_tests/image_loading/pubspec.yaml
index 09b3790fed..9d2f5c60e3 100644
--- a/dev/integration_tests/image_loading/pubspec.yaml
+++ b/dev/integration_tests/image_loading/pubspec.yaml
@@ -5,10 +5,10 @@ dependencies:
   flutter:
     sdk: flutter
   test: 1.6.3
-  mockito: 4.0.0
+  mockito: 4.1.0
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -60,4 +60,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: bf1e
+# PUBSPEC CHECKSUM: 8420
diff --git a/dev/integration_tests/platform_interaction/pubspec.yaml b/dev/integration_tests/platform_interaction/pubspec.yaml
index 8171255894..9e483e4601 100644
--- a/dev/integration_tests/platform_interaction/pubspec.yaml
+++ b/dev/integration_tests/platform_interaction/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -67,4 +67,4 @@ dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: d60e
+# PUBSPEC CHECKSUM: 820f
diff --git a/dev/integration_tests/simple_codegen/pubspec.yaml b/dev/integration_tests/simple_codegen/pubspec.yaml
index 3f13bf2fbf..024082e007 100644
--- a/dev/integration_tests/simple_codegen/pubspec.yaml
+++ b/dev/integration_tests/simple_codegen/pubspec.yaml
@@ -5,7 +5,7 @@ dependencies:
   build: 1.1.4
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.14.11 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -32,4 +32,4 @@ environment:
   # The pub client defaults to an <2.0.0 sdk constraint which we need to explicitly overwrite.
   sdk: ">=2.0.0-dev.68.0 <3.0.0"
 
-# PUBSPEC CHECKSUM: 669a
+# PUBSPEC CHECKSUM: 069b
diff --git a/dev/integration_tests/ui/pubspec.yaml b/dev/integration_tests/ui/pubspec.yaml
index 3454f9d59e..cba14c5914 100644
--- a/dev/integration_tests/ui/pubspec.yaml
+++ b/dev/integration_tests/ui/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   archive: 2.0.9 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -77,4 +77,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 1b28
+# PUBSPEC CHECKSUM: 3129
diff --git a/dev/manual_tests/pubspec.yaml b/dev/manual_tests/pubspec.yaml
index 703c255a9c..4ceeef249b 100644
--- a/dev/manual_tests/pubspec.yaml
+++ b/dev/manual_tests/pubspec.yaml
@@ -17,7 +17,7 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
 
-  mockito: 4.0.0
+  mockito: 4.1.0
 
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -36,4 +36,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 949f
+# PUBSPEC CHECKSUM: 0ba0
diff --git a/dev/snippets/pubspec.yaml b/dev/snippets/pubspec.yaml
index f0502917b2..9422e4aac9 100644
--- a/dev/snippets/pubspec.yaml
+++ b/dev/snippets/pubspec.yaml
@@ -13,7 +13,7 @@ dartdoc:
   nodoc: true
 
 dependencies:
-  args: 1.5.1
+  args: 1.5.2
   dart_style: 1.2.7
   meta: 1.1.6
   platform: 2.2.0
@@ -98,4 +98,4 @@ executables:
   vm_service_client: 0.2.6 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   web_socket_channel: 1.0.9 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 6b2c
+# PUBSPEC CHECKSUM: 052d
diff --git a/dev/tools/gen_keycodes/pubspec.yaml b/dev/tools/gen_keycodes/pubspec.yaml
index 0b1f93500b..cabc93895c 100644
--- a/dev/tools/gen_keycodes/pubspec.yaml
+++ b/dev/tools/gen_keycodes/pubspec.yaml
@@ -6,7 +6,7 @@ environment:
   sdk: ">=2.0.0-dev.68.0 <3.0.0"
 
 dependencies:
-  args: 1.5.1
+  args: 1.5.2
   http: 0.12.0+2
   path: 1.6.2
   platform: 2.2.0
@@ -22,4 +22,4 @@ dependencies:
   term_glyph: 1.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   typed_data: 1.1.6 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 8bd3
+# PUBSPEC CHECKSUM: 24d4
diff --git a/dev/tools/pubspec.yaml b/dev/tools/pubspec.yaml
index bf6f713887..be0a7f7cca 100644
--- a/dev/tools/pubspec.yaml
+++ b/dev/tools/pubspec.yaml
@@ -7,7 +7,7 @@ environment:
 
 dependencies:
   archive: 2.0.9
-  args: 1.5.1
+  args: 1.5.2
   http: 0.12.0+2
   intl: 0.15.8
   meta: 1.1.6
@@ -30,11 +30,11 @@ dependencies:
 
 dev_dependencies:
   test_api: 0.2.5
-  mockito: 4.0.0
+  mockito: 4.1.0
 
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   stack_trace: 1.9.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   stream_channel: 2.0.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 470f
+# PUBSPEC CHECKSUM: a711
diff --git a/dev/tools/vitool/pubspec.yaml b/dev/tools/vitool/pubspec.yaml
index c9c6437fe7..e7fc5a7f0b 100644
--- a/dev/tools/vitool/pubspec.yaml
+++ b/dev/tools/vitool/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ">=2.0.0-dev.68.0 <3.0.0"
 
 dependencies:
-  args: 1.5.1
+  args: 1.5.2
   vector_math: 2.0.8
   xml: 3.5.0
 
@@ -37,4 +37,4 @@ dev_dependencies:
   term_glyph: 1.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.2.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: b74d
+# PUBSPEC CHECKSUM: 3d4e
diff --git a/examples/catalog/pubspec.yaml b/examples/catalog/pubspec.yaml
index f5f77ec051..70e2c7e992 100644
--- a/examples/catalog/pubspec.yaml
+++ b/examples/catalog/pubspec.yaml
@@ -23,7 +23,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -73,4 +73,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 5ff8
+# PUBSPEC CHECKSUM: 25f9
diff --git a/examples/flutter_gallery/pubspec.yaml b/examples/flutter_gallery/pubspec.yaml
index 780e46c6ff..0463f8d1dc 100644
--- a/examples/flutter_gallery/pubspec.yaml
+++ b/examples/flutter_gallery/pubspec.yaml
@@ -39,7 +39,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   convert: 2.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -253,4 +253,4 @@ flutter:
       - asset: packages/flutter_gallery_assets/fonts/merriweather/Merriweather-Regular.ttf
       - asset: packages/flutter_gallery_assets/fonts/merriweather/Merriweather-Light.ttf
 
-# PUBSPEC CHECKSUM: 8760
+# PUBSPEC CHECKSUM: e061
diff --git a/examples/platform_channel/pubspec.yaml b/examples/platform_channel/pubspec.yaml
index 9433dfa85d..50bc7d5e75 100644
--- a/examples/platform_channel/pubspec.yaml
+++ b/examples/platform_channel/pubspec.yaml
@@ -21,7 +21,7 @@ dev_dependencies:
   test: 1.6.3
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -72,4 +72,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 5ff8
+# PUBSPEC CHECKSUM: 25f9
diff --git a/examples/stocks/pubspec.yaml b/examples/stocks/pubspec.yaml
index e9aea00083..f10e89a261 100644
--- a/examples/stocks/pubspec.yaml
+++ b/examples/stocks/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
   isolate: 2.0.2
 
   analyzer: 0.36.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  args: 1.5.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  args: 1.5.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   collection: 1.14.11 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -62,4 +62,4 @@ dev_dependencies:
 flutter:
   uses-material-design: true
 
-# PUBSPEC CHECKSUM: 63b7
+# PUBSPEC CHECKSUM: 69b8
diff --git a/packages/flutter/pubspec.yaml b/packages/flutter/pubspec.yaml
index a035993d1b..e4afaebfe5 100644
--- a/packages/flutter/pubspec.yaml
+++ b/packages/flutter/pubspec.yaml
@@ -22,7 +22,7 @@ dev_dependencies:
     sdk: flutter
   flutter_goldens:
     sdk: flutter
-  mockito: 4.0.0
+  mockito: 4.1.0
 
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -42,4 +42,4 @@ dev_dependencies:
   term_glyph: 1.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.2.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 94dc
+# PUBSPEC CHECKSUM: 45dd
diff --git a/packages/flutter_driver/pubspec.yaml b/packages/flutter_driver/pubspec.yaml
index eb36b72078..70c267920f 100644
--- a/packages/flutter_driver/pubspec.yaml
+++ b/packages/flutter_driver/pubspec.yaml
@@ -43,7 +43,7 @@ dependencies:
   vector_math: 2.0.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
 dev_dependencies:
-  mockito: 4.0.0
+  mockito: 4.1.0
   quiver: 2.0.3
 
-# PUBSPEC CHECKSUM: b48d
+# PUBSPEC CHECKSUM: ef8e
diff --git a/packages/flutter_goldens/pubspec.yaml b/packages/flutter_goldens/pubspec.yaml
index 2a53afc8a4..cf846a1cb3 100644
--- a/packages/flutter_goldens/pubspec.yaml
+++ b/packages/flutter_goldens/pubspec.yaml
@@ -33,6 +33,6 @@ dependencies:
   vector_math: 2.0.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
 dev_dependencies:
-  mockito: 4.0.0
+  mockito: 4.1.0
 
-# PUBSPEC CHECKSUM: 046a
+# PUBSPEC CHECKSUM: 926b
diff --git a/packages/flutter_localizations/pubspec.yaml b/packages/flutter_localizations/pubspec.yaml
index d73ddefd18..7c50e3dd40 100644
--- a/packages/flutter_localizations/pubspec.yaml
+++ b/packages/flutter_localizations/pubspec.yaml
@@ -20,7 +20,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  mockito: 4.0.0
+  mockito: 4.1.0
 
   async: 2.2.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -35,4 +35,4 @@ dev_dependencies:
   term_glyph: 1.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.2.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 4ddd
+# PUBSPEC CHECKSUM: c3de
diff --git a/packages/flutter_tools/lib/src/context_runner.dart b/packages/flutter_tools/lib/src/context_runner.dart
index 182130a5dc..e15a3ae4bc 100644
--- a/packages/flutter_tools/lib/src/context_runner.dart
+++ b/packages/flutter_tools/lib/src/context_runner.dart
@@ -43,8 +43,8 @@ import 'macos/xcode_validator.dart';
 import 'run_hot.dart';
 import 'usage.dart';
 import 'version.dart';
+import 'web/chrome.dart';
 import 'web/compile.dart';
-import 'web/web_device.dart';
 import 'windows/windows_workflow.dart';
 
 Future<T> runInContext<T>(
diff --git a/packages/flutter_tools/lib/src/resident_web_runner.dart b/packages/flutter_tools/lib/src/resident_web_runner.dart
index ba774a6444..b9523b85b9 100644
--- a/packages/flutter_tools/lib/src/resident_web_runner.dart
+++ b/packages/flutter_tools/lib/src/resident_web_runner.dart
@@ -5,11 +5,14 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
+import 'package:webkit_inspection_protocol/webkit_inspection_protocol.dart';
 
 import 'asset.dart';
 import 'base/common.dart';
 import 'base/file_system.dart';
+import 'base/logger.dart';
 import 'base/terminal.dart';
+import 'base/utils.dart';
 import 'build_info.dart';
 import 'bundle.dart';
 import 'dart/package_map.dart';
@@ -19,8 +22,8 @@ import 'project.dart';
 import 'resident_runner.dart';
 import 'run_hot.dart';
 import 'web/asset_server.dart';
+import 'web/chrome.dart';
 import 'web/compile.dart';
-import 'web/web_device.dart';
 
 /// A hot-runner which handles browser specific delegation.
 class ResidentWebRunner extends ResidentRunner {
@@ -44,6 +47,7 @@ class ResidentWebRunner extends ResidentRunner {
   WebAssetServer _server;
   ProjectFileInvalidator projectFileInvalidator;
   DateTime _lastCompiled;
+  WipConnection _connection;
   final FlutterProject flutterProject;
 
   @override
@@ -58,12 +62,16 @@ class ResidentWebRunner extends ResidentRunner {
   }
 
   @override
-  Future<void> cleanupAfterSignal() {
+  Future<void> cleanupAfterSignal() async {
+    await _connection.sendCommand('Browser.close');
+    _connection = null;
     return _server?.dispose();
   }
 
   @override
-  Future<void> cleanupAtFinish() {
+  Future<void> cleanupAtFinish() async {
+    await _connection?.sendCommand('Browser.close');
+    _connection = null;
     return _server?.dispose();
   }
 
@@ -128,7 +136,15 @@ class ResidentWebRunner extends ResidentRunner {
     await _server.initialize();
 
     // Step 3: Spawn an instance of Chrome and direct it to the created server.
-    await chromeLauncher.launch('http:localhost:${_server.port}');
+    final String url = 'http://localhost:${_server.port}';
+    final Chrome chrome = await chromeLauncher.launch(url);
+    final ChromeTab chromeTab = await chrome.chromeConnection.getTab((ChromeTab chromeTab) {
+      return chromeTab.url.contains(url); // we don't care about trailing slashes or #
+    });
+    _connection = await chromeTab.connect();
+    _connection.onClose.listen((WipConnection connection) {
+      appFinished();
+    });
 
     // We don't support the debugging proxy yet.
     appStartedCompleter?.complete();
@@ -139,23 +155,39 @@ class ResidentWebRunner extends ResidentRunner {
   }
 
   @override
-  Future<OperationResult> restart(
-      {bool fullRestart = false,
-      bool pauseAfterRestart = false,
-      String reason,
-      bool benchmarkMode = false}) async {
-    final List<Uri> invalidatedSources = ProjectFileInvalidator.findInvalidated(
-      lastCompiled: _lastCompiled,
-      urisToMonitor: <Uri>[
-        for (FileSystemEntity entity in flutterProject.directory
-            .childDirectory('lib')
-            .listSync(recursive: true))
-          if (entity is File && entity.path.endsWith('.dart')) entity.uri
-      ], // Add new class to track this for web.
-      packagesPath: PackageMap.globalPackagesPath,
+  Future<OperationResult> restart({
+    bool fullRestart = false,
+    bool pauseAfterRestart = false,
+    String reason,
+    bool benchmarkMode = false,
+  }) async {
+    final Stopwatch timer = Stopwatch()..start();
+    final Status status = logger.startProgress(
+      'Performing hot restart...',
+      timeout: timeoutConfiguration.fastOperation,
+      progressId: 'hot.restart',
     );
-    await webCompilationProxy.invalidate(inputs: invalidatedSources);
-    printStatus('Sources updated, refresh browser');
-    return OperationResult.ok;
+    OperationResult result = OperationResult.ok;
+    try {
+      final List<Uri> invalidatedSources = ProjectFileInvalidator.findInvalidated(
+        lastCompiled: _lastCompiled,
+        urisToMonitor: <Uri>[
+          for (FileSystemEntity entity in flutterProject.directory
+              .childDirectory('lib')
+              .listSync(recursive: true))
+            if (entity is File && entity.path.endsWith('.dart')) entity.uri
+        ], // Add new class to track this for web.
+        packagesPath: PackageMap.globalPackagesPath,
+      );
+      await webCompilationProxy.invalidate(inputs: invalidatedSources);
+      await _connection.sendCommand('Page.reload');
+      await Future<void>.delayed(const Duration(milliseconds: 150));
+    } catch (err) {
+      result = OperationResult(1, err.toString());
+    } finally {
+      printStatus('Restarted application in ${getElapsedAsMilliseconds(timer.elapsed)}.');
+      status.cancel();
+    }
+    return result;
   }
 }
diff --git a/packages/flutter_tools/lib/src/web/asset_server.dart b/packages/flutter_tools/lib/src/web/asset_server.dart
index d4ad143b3c..730692c000 100644
--- a/packages/flutter_tools/lib/src/web/asset_server.dart
+++ b/packages/flutter_tools/lib/src/web/asset_server.dart
@@ -170,7 +170,6 @@ class WebAssetServer {
 
   Future<void> _completeRequest(HttpRequest request, File file,
       [String contentType = 'text']) async {
-    printTrace('looking for ${request.uri} at ${file.path}');
     if (!file.existsSync()) {
       request.response.statusCode = HttpStatus.notFound;
       await request.response.close();
diff --git a/packages/flutter_tools/lib/src/web/chrome.dart b/packages/flutter_tools/lib/src/web/chrome.dart
new file mode 100644
index 0000000000..1f7e5f19ef
--- /dev/null
+++ b/packages/flutter_tools/lib/src/web/chrome.dart
@@ -0,0 +1,173 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:webkit_inspection_protocol/webkit_inspection_protocol.dart';
+
+import '../base/common.dart';
+import '../base/context.dart';
+import '../base/file_system.dart';
+import '../base/io.dart';
+import '../base/os.dart';
+import '../base/platform.dart';
+import '../base/process_manager.dart';
+import '../convert.dart';
+
+/// The [ChromeLauncher] instance.
+ChromeLauncher get chromeLauncher => context.get<ChromeLauncher>();
+
+const String _kChromeEnvironment = 'CHROME_EXECUTABLE';
+const String _kLinuxExecutable = 'google-chrome';
+const String _kMacOSExecutable =
+    '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome';
+const String _kWindowsExecutable = r'Google\Chrome\Application\chrome.exe';
+final List<String> _kWindowsPrefixes = <String>[
+  platform.environment['LOCALAPPDATA'],
+  platform.environment['PROGRAMFILES'],
+  platform.environment['PROGRAMFILES(X86)']
+];
+
+// Responsible for launching chrome with devtools configured.
+class ChromeLauncher {
+  const ChromeLauncher();
+
+  static final Completer<Chrome> _currentCompleter = Completer<Chrome>();
+
+  /// Launch the chrome browser to a particular `host` page.
+  Future<Chrome> launch(String url) async {
+    final String chromeExecutable = _findExecutable();
+    final Directory dataDir = fs.systemTempDirectory.createTempSync();
+    final int port = await os.findFreePort();
+    final List<String> args = <String>[
+      chromeExecutable,
+      // Using a tmp directory ensures that a new instance of chrome launches
+      // allowing for the remote debug port to be enabled.
+      '--user-data-dir=${dataDir.path}',
+      '--remote-debugging-port=$port',
+      // When the DevTools has focus we don't want to slow down the application.
+      '--disable-background-timer-throttling',
+      // Since we are using a temp profile, disable features that slow the
+      // Chrome launch.
+      '--disable-extensions',
+      '--disable-popup-blocking',
+      '--bwsi',
+      '--no-first-run',
+      '--no-default-browser-check',
+      '--disable-default-apps',
+      '--disable-translate',
+      url,
+    ];
+    final Process process = await processManager.start(args);
+
+    // Wait until the DevTools are listening before trying to connect.
+    await process.stderr
+        .transform(utf8.decoder)
+        .transform(const LineSplitter())
+        .firstWhere((String line) => line.startsWith('DevTools listening'))
+        .timeout(const Duration(seconds: 60), onTimeout: () {
+          throwToolExit('Unable to connect to Chrome DevTools.');
+          return null;
+        });
+
+    return _connect(Chrome._(
+      port,
+      ChromeConnection('localhost', port),
+      process: process,
+      dataDir: dataDir,
+    ));
+  }
+
+  static Future<Chrome> _connect(Chrome chrome) async {
+    if (_currentCompleter.isCompleted) {
+      throwToolExit('Only one instance of chrome can be started.');
+    }
+    // The connection is lazy. Try a simple call to make sure the provided
+    // connection is valid.
+    try {
+      await chrome.chromeConnection.getTabs();
+    } catch (e) {
+      await chrome.close();
+      throwToolExit(
+          'Unable to connect to Chrome debug port: ${chrome.debugPort}\n $e');
+    }
+    _currentCompleter.complete(chrome);
+    return chrome;
+  }
+
+  /// Connects to an instance of Chrome with an open debug port.
+  static Future<Chrome> fromExisting(int port) async =>
+      _connect(Chrome._(port, ChromeConnection('localhost', port)));
+
+  static Future<Chrome> get connectedInstance => _currentCompleter.future;
+
+  static String _findExecutable() {
+    if (platform.environment.containsKey(_kChromeEnvironment)) {
+      return platform.environment[_kChromeEnvironment];
+    }
+    if (platform.isLinux) {
+      // Don't check if this exists, it isn't a file.
+      return _kLinuxExecutable;
+    }
+    if (platform.isMacOS) {
+      if (!fs.file(_kMacOSExecutable).existsSync()) {
+        throwToolExit('Chrome executable not found at $_kMacOSExecutable');
+      }
+      return _kMacOSExecutable;
+    }
+    if (platform.isWindows) {
+      final String windowsPrefix = _kWindowsPrefixes.firstWhere((String prefix) {
+        if (prefix == null) {
+          return false;
+        }
+        final String path = fs.path.join(prefix, _kWindowsExecutable);
+        return fs.file(path).existsSync();
+      }, orElse: () => '.');
+      final String path = fs.path.join(windowsPrefix, _kWindowsExecutable);
+      if (!fs.file(path).existsSync()) {
+        throwToolExit('Chrome executable not found at $path');
+      }
+      return path;
+    }
+    throwToolExit('Platform ${platform.operatingSystem} is not supported.');
+    return null;
+  }
+}
+
+/// A class for managing an instance of Chrome.
+class Chrome {
+  const Chrome._(
+    this.debugPort,
+    this.chromeConnection, {
+    Process process,
+    Directory dataDir,
+  })  : _process = process,
+        _dataDir = dataDir;
+
+  final int debugPort;
+  final Process _process;
+  final Directory _dataDir;
+  final ChromeConnection chromeConnection;
+
+  static Completer<Chrome> _currentCompleter = Completer<Chrome>();
+
+  Future<void> close() async {
+    if (_currentCompleter.isCompleted) {
+      _currentCompleter = Completer<Chrome>();
+    }
+    chromeConnection.close();
+    _process?.kill(ProcessSignal.SIGKILL);
+    await _process?.exitCode;
+    try {
+      // Chrome starts another process as soon as it dies that modifies the
+      // profile information. Give it some time before attempting to delete
+      // the directory.
+      await Future<void>.delayed(const Duration(milliseconds: 500));
+      await _dataDir?.delete(recursive: true);
+    } catch (_) {
+      // Silently fail if we can't clean up the profile information.
+      // It is a system tmp directory so it should get cleaned up eventually.
+    }
+  }
+}
diff --git a/packages/flutter_tools/lib/src/web/web_device.dart b/packages/flutter_tools/lib/src/web/web_device.dart
index d8ce9ce3e5..098591d2a2 100644
--- a/packages/flutter_tools/lib/src/web/web_device.dart
+++ b/packages/flutter_tools/lib/src/web/web_device.dart
@@ -5,12 +5,10 @@
 import '../application_package.dart';
 import '../asset.dart';
 import '../base/common.dart';
-import '../base/context.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/platform.dart';
-import '../base/process_manager.dart';
 import '../build_info.dart';
 import '../bundle.dart';
 import '../device.dart';
@@ -18,8 +16,7 @@ import '../globals.dart';
 import '../project.dart';
 import '../version.dart';
 import '../web/compile.dart';
-
-ChromeLauncher get chromeLauncher => context.get<ChromeLauncher>();
+import 'chrome.dart';
 
 /// Only launch or display web devices if `FLUTTER_WEB`
 /// environment variable is set to true.
@@ -202,45 +199,3 @@ class WebDevices extends PollingDeviceDiscovery {
   @override
   bool get supportsPlatform => flutterWebEnabled;
 }
-
-const String _klinuxExecutable = 'google-chrome';
-const String _kMacOSExecutable = '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome';
-const String _kWindowsExecutable = r'Google\Chrome\Application\chrome.exe';
-final List<String> _kWindowsPrefixes = <String>[
-  platform.environment['LOCALAPPDATA'],
-  platform.environment['PROGRAMFILES'],
-  platform.environment['PROGRAMFILES(X86)'],
-];
-
-// Responsible for launching chrome with devtools configured.
-class ChromeLauncher {
-  const ChromeLauncher();
-
-  /// Launch the chrome browser to a particular `host` page.
-  Future<Process> launch(String host) async {
-    String executable;
-    if (platform.isMacOS) {
-      executable = _kMacOSExecutable;
-    } else if (platform.isLinux) {
-      executable = _klinuxExecutable;
-    } else if (platform.isWindows) {
-      final String filePath = _kWindowsPrefixes.firstWhere((String prefix) {
-        if (prefix == null) {
-          return false;
-        }
-        final String path = fs.path.join(prefix, _kWindowsExecutable);
-        return fs.file(path).existsSync();
-      }, orElse: () => '.');
-      executable = filePath;
-    } else {
-      throwToolExit('Platform ${platform.operatingSystem} is not supported.');
-    }
-    if (!fs.file(executable).existsSync()) {
-      throwToolExit('Chrome executable not found at $executable');
-    }
-    return processManager.start(<String>[
-      executable,
-      host,
-    ], mode: ProcessStartMode.detached);
-  }
-}
diff --git a/packages/flutter_tools/pubspec.yaml b/packages/flutter_tools/pubspec.yaml
index 2c8b87bf61..546b4784a3 100644
--- a/packages/flutter_tools/pubspec.yaml
+++ b/packages/flutter_tools/pubspec.yaml
@@ -10,7 +10,7 @@ environment:
 dependencies:
   # To update these, use "flutter update-packages --force-upgrade".
   archive: 2.0.9
-  args: 1.5.1
+  args: 1.5.2
   bsdiff: 0.1.0
   completion: 0.2.1+1
   coverage: 0.12.4
@@ -33,6 +33,7 @@ dependencies:
   usage: 3.4.1
   vm_service_client: 0.2.6+2
   web_socket_channel: 1.0.13
+  webkit_inspection_protocol: 0.4.0
   xml: 3.5.0
   yaml: 2.1.15
   flutter_goldens_client:
@@ -61,7 +62,7 @@ dependencies:
   build_config: 0.4.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   build_resolvers: 1.0.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   built_collection: 4.2.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  built_value: 6.5.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  built_value: 6.6.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.1.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   convert: 2.1.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   csslib: 0.16.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -78,6 +79,9 @@ dependencies:
   kernel: 0.3.18 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   logging: 0.11.3+2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  mime: 0.9.6+3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  multi_server_socket: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  node_preamble: 1.4.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   package_resolver: 1.0.10 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   path: 1.6.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   pedantic: 1.7.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -88,6 +92,8 @@ dependencies:
   pubspec_parse: 0.1.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   scratch_space: 0.0.3+2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   shelf: 0.7.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  shelf_packages_handler: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  shelf_static: 0.2.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   shelf_web_socket: 0.2.3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   source_map_stack_trace: 1.1.5 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   source_maps: 0.10.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -101,21 +107,15 @@ dependencies:
 
 dev_dependencies:
   collection: 1.14.11
-  mockito: 4.0.0
+  mockito: 4.1.0
   file_testing: 2.1.0
-  vm_service_lib: 3.17.0
+  vm_service_lib: 3.17.0+1
   build_runner: 1.4.0
   build_vm_compilers: 1.0.0
   build_test: 0.10.7+3
 
-  mime: 0.9.6+3 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  multi_server_socket: 1.0.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  node_preamble: 1.4.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  shelf_packages_handler: 1.0.4 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  shelf_static: 0.2.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-
 dartdoc:
   # Exclude this package from the hosted API docs.
   nodoc: true
 
-# PUBSPEC CHECKSUM: b34a
+# PUBSPEC CHECKSUM: 25f1
diff --git a/packages/flutter_tools/test/web/devices_test.dart b/packages/flutter_tools/test/web/devices_test.dart
index 77dac14e70..7ab085629d 100644
--- a/packages/flutter_tools/test/web/devices_test.dart
+++ b/packages/flutter_tools/test/web/devices_test.dart
@@ -5,6 +5,7 @@
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/platform.dart';
 import 'package:flutter_tools/src/project.dart';
+import 'package:flutter_tools/src/web/chrome.dart';
 import 'package:flutter_tools/src/web/compile.dart';
 import 'package:flutter_tools/src/web/web_device.dart';
 import 'package:mockito/mockito.dart';
diff --git a/packages/fuchsia_remote_debug_protocol/pubspec.yaml b/packages/fuchsia_remote_debug_protocol/pubspec.yaml
index 67b6225b96..c5cbdba3be 100644
--- a/packages/fuchsia_remote_debug_protocol/pubspec.yaml
+++ b/packages/fuchsia_remote_debug_protocol/pubspec.yaml
@@ -42,6 +42,6 @@ dependencies:
   vm_service_client: 0.2.6+2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
 dev_dependencies:
-  mockito: 4.0.0
+  mockito: 4.1.0
 
-# PUBSPEC CHECKSUM: b48d
+# PUBSPEC CHECKSUM: ef8e