diff --git a/dev/benchmarks/macrobenchmarks/lib/src/cull_opacity.dart b/dev/benchmarks/macrobenchmarks/lib/src/cull_opacity.dart
index 6ee3f57a9a1..5f4e87a51f2 100644
--- a/dev/benchmarks/macrobenchmarks/lib/src/cull_opacity.dart
+++ b/dev/benchmarks/macrobenchmarks/lib/src/cull_opacity.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 class CullOpacityPage extends StatefulWidget {
diff --git a/dev/devicelab/bin/tasks/build_aar_module_test.dart b/dev/devicelab/bin/tasks/build_aar_module_test.dart
index 1e9300c73f3..28d4450c7b0 100644
--- a/dev/devicelab/bin/tasks/build_aar_module_test.dart
+++ b/dev/devicelab/bin/tasks/build_aar_module_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/build_aar_plugin_test.dart b/dev/devicelab/bin/tasks/build_aar_plugin_test.dart
index 1dedf8a4d93..8e41b222c02 100644
--- a/dev/devicelab/bin/tasks/build_aar_plugin_test.dart
+++ b/dev/devicelab/bin/tasks/build_aar_plugin_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/build_mode_test.dart b/dev/devicelab/bin/tasks/build_mode_test.dart
index b6a0dfce89e..8767359d951 100644
--- a/dev/devicelab/bin/tasks/build_mode_test.dart
+++ b/dev/devicelab/bin/tasks/build_mode_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/commands_test.dart b/dev/devicelab/bin/tasks/commands_test.dart
index 14413843339..730df3c5da4 100644
--- a/dev/devicelab/bin/tasks/commands_test.dart
+++ b/dev/devicelab/bin/tasks/commands_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/complex_layout_semantics_perf.dart b/dev/devicelab/bin/tasks/complex_layout_semantics_perf.dart
index cca05ea8ac7..5f991611289 100644
--- a/dev/devicelab/bin/tasks/complex_layout_semantics_perf.dart
+++ b/dev/devicelab/bin/tasks/complex_layout_semantics_perf.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/flutter_attach_test.dart b/dev/devicelab/bin/tasks/flutter_attach_test.dart
index 3cf04035a3b..ccd292847bc 100644
--- a/dev/devicelab/bin/tasks/flutter_attach_test.dart
+++ b/dev/devicelab/bin/tasks/flutter_attach_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/flutter_create_offline_test_linux.dart b/dev/devicelab/bin/tasks/flutter_create_offline_test_linux.dart
index f449b5165fb..f8e7bf65eb1 100644
--- a/dev/devicelab/bin/tasks/flutter_create_offline_test_linux.dart
+++ b/dev/devicelab/bin/tasks/flutter_create_offline_test_linux.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/integration_tests.dart';
 
diff --git a/dev/devicelab/bin/tasks/flutter_create_offline_test_mac.dart b/dev/devicelab/bin/tasks/flutter_create_offline_test_mac.dart
index f449b5165fb..f8e7bf65eb1 100644
--- a/dev/devicelab/bin/tasks/flutter_create_offline_test_mac.dart
+++ b/dev/devicelab/bin/tasks/flutter_create_offline_test_mac.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/integration_tests.dart';
 
diff --git a/dev/devicelab/bin/tasks/flutter_create_offline_test_windows.dart b/dev/devicelab/bin/tasks/flutter_create_offline_test_windows.dart
index f449b5165fb..f8e7bf65eb1 100644
--- a/dev/devicelab/bin/tasks/flutter_create_offline_test_windows.dart
+++ b/dev/devicelab/bin/tasks/flutter_create_offline_test_windows.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/integration_tests.dart';
 
diff --git a/dev/devicelab/bin/tasks/flutter_test_performance.dart b/dev/devicelab/bin/tasks/flutter_test_performance.dart
index 86c4fd3f5fb..8eb3040f09f 100644
--- a/dev/devicelab/bin/tasks/flutter_test_performance.dart
+++ b/dev/devicelab/bin/tasks/flutter_test_performance.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_jetifier_test.dart b/dev/devicelab/bin/tasks/gradle_jetifier_test.dart
index 28048b5b8ed..9eb953a64e2 100644
--- a/dev/devicelab/bin/tasks/gradle_jetifier_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_jetifier_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_migrate_settings_test.dart b/dev/devicelab/bin/tasks/gradle_migrate_settings_test.dart
index 49873c13ae7..2582ecaa929 100644
--- a/dev/devicelab/bin/tasks/gradle_migrate_settings_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_migrate_settings_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_non_android_plugin_test.dart b/dev/devicelab/bin/tasks/gradle_non_android_plugin_test.dart
index 5cf66c42f30..a76a78bc27a 100644
--- a/dev/devicelab/bin/tasks/gradle_non_android_plugin_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_non_android_plugin_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_plugin_bundle_test.dart b/dev/devicelab/bin/tasks/gradle_plugin_bundle_test.dart
index 44bc4933164..02ea2b9ffc0 100644
--- a/dev/devicelab/bin/tasks/gradle_plugin_bundle_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_plugin_bundle_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_plugin_dependencies_test.dart b/dev/devicelab/bin/tasks/gradle_plugin_dependencies_test.dart
index 6df1afdd5fc..d9e7f1b6680 100644
--- a/dev/devicelab/bin/tasks/gradle_plugin_dependencies_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_plugin_dependencies_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_plugin_fat_apk_test.dart b/dev/devicelab/bin/tasks/gradle_plugin_fat_apk_test.dart
index d72e0b6229d..888a7ba4fe7 100644
--- a/dev/devicelab/bin/tasks/gradle_plugin_fat_apk_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_plugin_fat_apk_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_plugin_light_apk_test.dart b/dev/devicelab/bin/tasks/gradle_plugin_light_apk_test.dart
index 1e99ebba1a1..5ce38cfce43 100644
--- a/dev/devicelab/bin/tasks/gradle_plugin_light_apk_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_plugin_light_apk_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_plugins_without_annotations_test.dart b/dev/devicelab/bin/tasks/gradle_plugins_without_annotations_test.dart
index efa7eb21b34..638a1434777 100644
--- a/dev/devicelab/bin/tasks/gradle_plugins_without_annotations_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_plugins_without_annotations_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/gradle_r8_test.dart b/dev/devicelab/bin/tasks/gradle_r8_test.dart
index 49017e71d55..bbd8c6afde2 100644
--- a/dev/devicelab/bin/tasks/gradle_r8_test.dart
+++ b/dev/devicelab/bin/tasks/gradle_r8_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/hot_mode_dev_cycle__benchmark.dart b/dev/devicelab/bin/tasks/hot_mode_dev_cycle__benchmark.dart
index 0660c26bb00..ece3e04e95a 100644
--- a/dev/devicelab/bin/tasks/hot_mode_dev_cycle__benchmark.dart
+++ b/dev/devicelab/bin/tasks/hot_mode_dev_cycle__benchmark.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/bin/tasks/hot_mode_dev_cycle_linux__benchmark.dart b/dev/devicelab/bin/tasks/hot_mode_dev_cycle_linux__benchmark.dart
index 24af6126296..e4ef9c29058 100644
--- a/dev/devicelab/bin/tasks/hot_mode_dev_cycle_linux__benchmark.dart
+++ b/dev/devicelab/bin/tasks/hot_mode_dev_cycle_linux__benchmark.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/hot_mode_dev_cycle_win__benchmark.dart b/dev/devicelab/bin/tasks/hot_mode_dev_cycle_win__benchmark.dart
index 24af6126296..e4ef9c29058 100644
--- a/dev/devicelab/bin/tasks/hot_mode_dev_cycle_win__benchmark.dart
+++ b/dev/devicelab/bin/tasks/hot_mode_dev_cycle_win__benchmark.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart b/dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart
index e84df29f437..20324aab64b 100644
--- a/dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart
+++ b/dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/module_test.dart b/dev/devicelab/bin/tasks/module_test.dart
index c4f62fb14b2..7a4ba6dec3e 100644
--- a/dev/devicelab/bin/tasks/module_test.dart
+++ b/dev/devicelab/bin/tasks/module_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/module_test_ios.dart b/dev/devicelab/bin/tasks/module_test_ios.dart
index 5ffd3e08dac..ab8ab28f40a 100644
--- a/dev/devicelab/bin/tasks/module_test_ios.dart
+++ b/dev/devicelab/bin/tasks/module_test_ios.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/named_isolates_test.dart b/dev/devicelab/bin/tasks/named_isolates_test.dart
index d293210a535..9c79f816e9d 100644
--- a/dev/devicelab/bin/tasks/named_isolates_test.dart
+++ b/dev/devicelab/bin/tasks/named_isolates_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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';
diff --git a/dev/devicelab/bin/tasks/plugin_test.dart b/dev/devicelab/bin/tasks/plugin_test.dart
index 1d9359a4183..a6d702fa20d 100644
--- a/dev/devicelab/bin/tasks/plugin_test.dart
+++ b/dev/devicelab/bin/tasks/plugin_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/plugin_test_ios.dart b/dev/devicelab/bin/tasks/plugin_test_ios.dart
index 961f57f7f30..365a946beeb 100644
--- a/dev/devicelab/bin/tasks/plugin_test_ios.dart
+++ b/dev/devicelab/bin/tasks/plugin_test_ios.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/plugin_test_win.dart b/dev/devicelab/bin/tasks/plugin_test_win.dart
index e00d2586875..dc1846a5237 100644
--- a/dev/devicelab/bin/tasks/plugin_test_win.dart
+++ b/dev/devicelab/bin/tasks/plugin_test_win.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/routing_test.dart b/dev/devicelab/bin/tasks/routing_test.dart
index aa7ca5f2f57..b6b943b2672 100644
--- a/dev/devicelab/bin/tasks/routing_test.dart
+++ b/dev/devicelab/bin/tasks/routing_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/bin/tasks/run_machine_concurrent_hot_reload.dart b/dev/devicelab/bin/tasks/run_machine_concurrent_hot_reload.dart
index 1b683cb6604..7c400fbaca6 100644
--- a/dev/devicelab/bin/tasks/run_machine_concurrent_hot_reload.dart
+++ b/dev/devicelab/bin/tasks/run_machine_concurrent_hot_reload.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/bin/tasks/run_release_test.dart b/dev/devicelab/bin/tasks/run_release_test.dart
index 0ee43db07a2..b5ac90036e4 100644
--- a/dev/devicelab/bin/tasks/run_release_test.dart
+++ b/dev/devicelab/bin/tasks/run_release_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/run_without_leak_linux.dart b/dev/devicelab/bin/tasks/run_without_leak_linux.dart
index 614ea70229a..8df40049181 100644
--- a/dev/devicelab/bin/tasks/run_without_leak_linux.dart
+++ b/dev/devicelab/bin/tasks/run_without_leak_linux.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Flutter Authors. All rights reserved.
+// Copyright 2019 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
diff --git a/dev/devicelab/bin/tasks/run_without_leak_mac.dart b/dev/devicelab/bin/tasks/run_without_leak_mac.dart
index 614ea70229a..8df40049181 100644
--- a/dev/devicelab/bin/tasks/run_without_leak_mac.dart
+++ b/dev/devicelab/bin/tasks/run_without_leak_mac.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Flutter Authors. All rights reserved.
+// Copyright 2019 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
diff --git a/dev/devicelab/bin/tasks/run_without_leak_win.dart b/dev/devicelab/bin/tasks/run_without_leak_win.dart
index 614ea70229a..8df40049181 100644
--- a/dev/devicelab/bin/tasks/run_without_leak_win.dart
+++ b/dev/devicelab/bin/tasks/run_without_leak_win.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Flutter Authors. All rights reserved.
+// Copyright 2019 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
diff --git a/dev/devicelab/bin/tasks/service_extensions_test.dart b/dev/devicelab/bin/tasks/service_extensions_test.dart
index b874ad61da4..9581d476f65 100644
--- a/dev/devicelab/bin/tasks/service_extensions_test.dart
+++ b/dev/devicelab/bin/tasks/service_extensions_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle__benchmark.dart b/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle__benchmark.dart
index 37b3255ff86..2ef8d830877 100644
--- a/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle__benchmark.dart
+++ b/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle__benchmark.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle_ios__benchmark.dart b/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle_ios__benchmark.dart
index eddaf1814de..26973f73f9e 100644
--- a/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle_ios__benchmark.dart
+++ b/dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle_ios__benchmark.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// 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.
 
diff --git a/dev/devicelab/lib/framework/apk_utils.dart b/dev/devicelab/lib/framework/apk_utils.dart
index 8a99dd37f3d..51ccbf575bb 100644
--- a/dev/devicelab/lib/framework/apk_utils.dart
+++ b/dev/devicelab/lib/framework/apk_utils.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/lib/framework/ios.dart b/dev/devicelab/lib/framework/ios.dart
index 075c920a74b..642a6251c9a 100644
--- a/dev/devicelab/lib/framework/ios.dart
+++ b/dev/devicelab/lib/framework/ios.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/lib/framework/utils.dart b/dev/devicelab/lib/framework/utils.dart
index 4c8f6a1831a..f132c0d63f6 100644
--- a/dev/devicelab/lib/framework/utils.dart
+++ b/dev/devicelab/lib/framework/utils.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/lib/tasks/analysis.dart b/dev/devicelab/lib/tasks/analysis.dart
index eb3c24043ef..ed71fe6df7c 100644
--- a/dev/devicelab/lib/tasks/analysis.dart
+++ b/dev/devicelab/lib/tasks/analysis.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/lib/tasks/integration_tests.dart b/dev/devicelab/lib/tasks/integration_tests.dart
index f53f5cf13dd..4a2b13c01c0 100644
--- a/dev/devicelab/lib/tasks/integration_tests.dart
+++ b/dev/devicelab/lib/tasks/integration_tests.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Copyright 2017 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.
 
diff --git a/dev/devicelab/lib/tasks/perf_tests.dart b/dev/devicelab/lib/tasks/perf_tests.dart
index 9aa2bf5626c..dfdae569771 100644
--- a/dev/devicelab/lib/tasks/perf_tests.dart
+++ b/dev/devicelab/lib/tasks/perf_tests.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/devicelab/lib/tasks/plugin_tests.dart b/dev/devicelab/lib/tasks/plugin_tests.dart
index e574fb6377a..6d142f8887c 100644
--- a/dev/devicelab/lib/tasks/plugin_tests.dart
+++ b/dev/devicelab/lib/tasks/plugin_tests.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Copyright 2018 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.
 
diff --git a/dev/devicelab/test/utils_test.dart b/dev/devicelab/test/utils_test.dart
index c1932b15216..1c8358e1918 100644
--- a/dev/devicelab/test/utils_test.dart
+++ b/dev/devicelab/test/utils_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
 
diff --git a/dev/docs/platform_integration/lib/android.dart b/dev/docs/platform_integration/lib/android.dart
index c9c119f7184..1cd7c485481 100644
--- a/dev/docs/platform_integration/lib/android.dart
+++ b/dev/docs/platform_integration/lib/android.dart
@@ -1,2 +1,6 @@
+// Copyright 2014 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.
+
 /// [Flutter platform integration APIs for Android.](https://docs.flutter.io/javadoc/)
 library Android;
diff --git a/dev/docs/platform_integration/lib/ios.dart b/dev/docs/platform_integration/lib/ios.dart
index 86c2012df25..c8976f616ad 100644
--- a/dev/docs/platform_integration/lib/ios.dart
+++ b/dev/docs/platform_integration/lib/ios.dart
@@ -1,2 +1,6 @@
+// Copyright 2014 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.
+
 /// [Flutter platform integration APIs for iOS.](https://docs.flutter.io/objcdoc/)
 library iOS;
diff --git a/dev/integration_tests/abstract_method_smoke_test/lib/main.dart b/dev/integration_tests/abstract_method_smoke_test/lib/main.dart
index 1028e442166..2b534667ff5 100644
--- a/dev/integration_tests/abstract_method_smoke_test/lib/main.dart
+++ b/dev/integration_tests/abstract_method_smoke_test/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'package:flutter/services.dart';
 
@@ -59,4 +63,4 @@ class SecondPage extends StatelessWidget {
       ),
     );
   }
-}
\ No newline at end of file
+}
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_kitchen_sink/test/widget_test.dart b/dev/integration_tests/android_splash_screens/splash_screen_kitchen_sink/test/widget_test.dart
index 7b135251eec..c6ff61f8d53 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_kitchen_sink/test/widget_test.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_kitchen_sink/test/widget_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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.
+
 // This is a basic Flutter widget test.
 //
 // To perform an interaction with a widget in your test, use the WidgetTester
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/lib/main.dart b/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/lib/main.dart
index 7342a11e85e..0eef3aa3dd9 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/lib/main.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 void main() => runApp(MyApp());
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/test/widget_test.dart b/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/test/widget_test.dart
index d0efff84b51..c4fd6725c79 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/test/widget_test.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_load_rotate/test/widget_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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.
+
 // This is a basic Flutter widget test.
 //
 // To perform an interaction with a widget in your test, use the WidgetTester
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/lib/main.dart b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/lib/main.dart
index 7342a11e85e..0eef3aa3dd9 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/lib/main.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 void main() => runApp(MyApp());
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test/widget_test.dart b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test/widget_test.dart
index 79b3ab38582..51989354dd1 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test/widget_test.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test/widget_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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.
+
 // This is a basic Flutter widget test.
 //
 // To perform an interaction with a widget in your test, use the WidgetTester
diff --git a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test_driver/main.dart b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test_driver/main.dart
index cc92f2bf5f0..a3e3b9afd85 100644
--- a/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test_driver/main.dart
+++ b/dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/test_driver/main.dart
@@ -1,7 +1,11 @@
+// Copyright 2014 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_driver/driver_extension.dart';
 import 'package:splash_screen_trans_rotate/main.dart' as app;
 
 void main() {
   enableFlutterDriverExtension();
   app.main();
-}
\ No newline at end of file
+}
diff --git a/dev/integration_tests/android_views/lib/main.dart b/dev/integration_tests/android_views/lib/main.dart
index 9697a6a549d..ab346a09aa8 100644
--- a/dev/integration_tests/android_views/lib/main.dart
+++ b/dev/integration_tests/android_views/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'package:flutter_driver/driver_extension.dart';
 import 'motion_events_page.dart';
diff --git a/dev/integration_tests/codegen/test/example_test.dart b/dev/integration_tests/codegen/test/example_test.dart
index 6d687eb92d0..4cbbe33d2d3 100644
--- a/dev/integration_tests/codegen/test/example_test.dart
+++ b/dev/integration_tests/codegen/test/example_test.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:codegen/main.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
diff --git a/dev/integration_tests/flavors/lib/main.dart b/dev/integration_tests/flavors/lib/main.dart
index f0018a3ca91..6be4ba6028b 100644
--- a/dev/integration_tests/flavors/lib/main.dart
+++ b/dev/integration_tests/flavors/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_driver/driver_extension.dart';
diff --git a/dev/integration_tests/ios_add2app/flutterapp/README.md b/dev/integration_tests/ios_add2app/flutterapp/README.md
deleted file mode 100644
index ae7d53fdc6b..00000000000
--- a/dev/integration_tests/ios_add2app/flutterapp/README.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# ios_add2app_flutter
-
-A new flutter module project.
-
-## Getting Started
-
-For help getting started with Flutter, view our online
-[documentation](https://flutter.dev/).
diff --git a/dev/integration_tests/ios_add2app/flutterapp/lib/main.dart b/dev/integration_tests/ios_add2app/flutterapp/lib/main.dart
index fff451158e8..4c9ca3080c7 100644
--- a/dev/integration_tests/ios_add2app/flutterapp/lib/main.dart
+++ b/dev/integration_tests/ios_add2app/flutterapp/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:ui' as ui;
 
diff --git a/dev/integration_tests/ios_add2app/flutterapp/lib/marquee.dart b/dev/integration_tests/ios_add2app/flutterapp/lib/marquee.dart
index 934a04bb461..9f3089f4e19 100644
--- a/dev/integration_tests/ios_add2app/flutterapp/lib/marquee.dart
+++ b/dev/integration_tests/ios_add2app/flutterapp/lib/marquee.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'package:flutter/animation.dart';
 import 'package:flutter/services.dart';
diff --git a/dev/integration_tests/ios_add2app/flutterapp/test/widget_test.dart b/dev/integration_tests/ios_add2app/flutterapp/test/widget_test.dart
deleted file mode 100644
index 153f0556600..00000000000
--- a/dev/integration_tests/ios_add2app/flutterapp/test/widget_test.dart
+++ /dev/null
@@ -1,3 +0,0 @@
-void main() {
-
-}
diff --git a/dev/integration_tests/named_isolates/lib/main.dart b/dev/integration_tests/named_isolates/lib/main.dart
index ec09c9e6588..801a1335c2e 100644
--- a/dev/integration_tests/named_isolates/lib/main.dart
+++ b/dev/integration_tests/named_isolates/lib/main.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:ui' as ui;
 import 'package:flutter/material.dart';
 
diff --git a/dev/integration_tests/simple_codegen/lib/builders.dart b/dev/integration_tests/simple_codegen/lib/builders.dart
index 0f2199aee12..d3ac8b9c29c 100644
--- a/dev/integration_tests/simple_codegen/lib/builders.dart
+++ b/dev/integration_tests/simple_codegen/lib/builders.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:build/build.dart';
 
 /// The builder factory used by the `build.yaml` script.
diff --git a/dev/manual_tests/test/mock_image_http.dart b/dev/manual_tests/test/mock_image_http.dart
index c0ece4c9edf..c9a33238954 100644
--- a/dev/manual_tests/test/mock_image_http.dart
+++ b/dev/manual_tests/test/mock_image_http.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:io';
 
diff --git a/dev/tools/localization/gen_cupertino_localizations.dart b/dev/tools/localization/gen_cupertino_localizations.dart
index 9ad7e100268..158ed953a50 100644
--- a/dev/tools/localization/gen_cupertino_localizations.dart
+++ b/dev/tools/localization/gen_cupertino_localizations.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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 'localizations_utils.dart';
 
 HeaderGenerator generateCupertinoHeader = (String regenerateInstructions) {
diff --git a/dev/tools/localization/gen_material_localizations.dart b/dev/tools/localization/gen_material_localizations.dart
index 1909306b4af..136d122e42b 100644
--- a/dev/tools/localization/gen_material_localizations.dart
+++ b/dev/tools/localization/gen_material_localizations.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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 'localizations_utils.dart';
 
 HeaderGenerator generateMaterialHeader = (String regenerateInstructions) {
diff --git a/examples/flutter_gallery/lib/demo/images_demo.dart b/examples/flutter_gallery/lib/demo/images_demo.dart
index 9863a2bc80e..e2d02cd5923 100644
--- a/examples/flutter_gallery/lib/demo/images_demo.dart
+++ b/examples/flutter_gallery/lib/demo/images_demo.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 import '../gallery/demo.dart';
diff --git a/examples/flutter_gallery/lib/demo/material/elevation_demo.dart b/examples/flutter_gallery/lib/demo/material/elevation_demo.dart
index 0198657bba9..ec44b389e1e 100644
--- a/examples/flutter_gallery/lib/demo/material/elevation_demo.dart
+++ b/examples/flutter_gallery/lib/demo/material/elevation_demo.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 import '../../gallery/demo.dart';
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo.dart
index 4a5bf99339c..8c5a5d8c081 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:ui' show Vertices;
 import 'package:flutter/material.dart';
 import 'transformations_demo_board.dart';
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_board.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_board.dart
index bf74076d4f9..8d830e527a5 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_board.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_board.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:collection' show IterableMixin;
 import 'dart:math';
 import 'dart:ui' show Vertices;
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_color_picker.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_color_picker.dart
index ebcaa0d3d06..80e612d87ed 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_color_picker.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_color_picker.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 
 // A generic widget for a list of selectable colors.
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_edit_board_point.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_edit_board_point.dart
index 160054b050b..b9803d8652a 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_edit_board_point.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_edit_board_point.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'transformations_demo_board.dart';
 import 'transformations_demo_color_picker.dart';
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_gesture_transformable.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_gesture_transformable.dart
index c8bd21d1bcf..54f55e1372c 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_gesture_transformable.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_gesture_transformable.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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/material.dart';
 import 'package:vector_math/vector_math_64.dart' show Vector3;
 import 'transformations_demo_inertial_motion.dart';
diff --git a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_inertial_motion.dart b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_inertial_motion.dart
index 8e45c00b259..389e46a4d7b 100644
--- a/examples/flutter_gallery/lib/demo/transformations/transformations_demo_inertial_motion.dart
+++ b/examples/flutter_gallery/lib/demo/transformations/transformations_demo_inertial_motion.dart
@@ -1,3 +1,7 @@
+// Copyright 2014 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:math';
 import 'package:flutter/material.dart';
 import 'package:vector_math/vector_math.dart' show Vector2;