Update copyright headers in third_party/s*/

These files are used to import new versions of third-party code, to
integrate that code into Chromium, or are otherwise not from upstream.

The methodology used to generate this CL is documented in
https://crbug.com/1098010#c95.

No-Try: true
Bug: 1098010
Change-Id: Ibcf0f99b328f98a9e1c55d0cddac872277f6c346
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3926078
Reviewed-by: Mark Mentovai <mark@chromium.org>
Auto-Submit: Avi Drissman <avi@chromium.org>
Owners-Override: Avi Drissman <avi@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1053250}
NOKEYCHECK=True
GitOrigin-RevId: cd038c9516df1ef6ae77ca4435769e31a51470c8
diff --git a/BUILD.gn b/BUILD.gn
index 5515203..4cf4c7e 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright 2020 The Chromium Authors. All rights reserved.
+# Copyright 2020 The Chromium Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
diff --git a/base/shell_encryption_export.h b/base/shell_encryption_export.h
index 72670c3..16dfac7 100644
--- a/base/shell_encryption_export.h
+++ b/base/shell_encryption_export.h
@@ -1,4 +1,4 @@
-// Copyright 2021 The Chromium Authors. All rights reserved.
+// Copyright 2021 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
diff --git a/base/shell_encryption_export_template.h b/base/shell_encryption_export_template.h
index 1feb536..d0de29f 100644
--- a/base/shell_encryption_export_template.h
+++ b/base/shell_encryption_export_template.h
@@ -1,4 +1,4 @@
-// Copyright 2021 The Chromium Authors. All rights reserved.
+// Copyright 2021 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
diff --git a/tests/run_all_unittests.cc b/tests/run_all_unittests.cc
index 65ed57e..af2ef5d 100644
--- a/tests/run_all_unittests.cc
+++ b/tests/run_all_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright 2020 The Chromium Authors. All rights reserved.
+// Copyright 2020 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.