Update copyright headers in third_party/b*/, third_party/c*/, and third_party/d*/

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-Presubmit: true
Bug: 1098010
Change-Id: I53a789c94c11b10774bb987ca8f796a879a0044a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3936784
Reviewed-by: Mark Mentovai <mark@chromium.org>
Owners-Override: Avi Drissman <avi@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Auto-Submit: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1056701}

diff --git a/third_party/decklink/BUILD.gn b/third_party/decklink/BUILD.gn
index 2ca860e..21adf3b 100644
--- a/third_party/decklink/BUILD.gn
+++ b/third_party/decklink/BUILD.gn

@@ -1,4 +1,4 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
+# Copyright 2014 The Chromium Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.