Update copyright headers in content/

The methodology used to generate this CL is documented in
https://crbug.com/1098010#c34.

No-Try: true
No-Presubmit: true
Bug: 1098010
Change-Id: I8c0f009d16350271f07d8e5e561085822cc9dd27
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3895935
Owners-Override: Avi Drissman <[email protected]>
Reviewed-by: Mark Mentovai <[email protected]>
Commit-Queue: Mark Mentovai <[email protected]>
Auto-Submit: Avi Drissman <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1047456}
diff --git a/content/browser/renderer_host/navigation_request_unittest.cc b/content/browser/renderer_host/navigation_request_unittest.cc
index 5aa2e23..f45f7b81 100644
--- a/content/browser/renderer_host/navigation_request_unittest.cc
+++ b/content/browser/renderer_host/navigation_request_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2015 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.