Update copyright headers in android_webview/ 3/3

The methodology used is documented in https://crbug.com/1098010#c34.

An earlier version of this CL, https://crrev.com/c/3879643,
was reverted due to an issue that was resolved with
https://crrev.com/c/3881211.

No-Try: true
Bug: 1098010
Change-Id: Iaea33536d02a9ea5b57eec31d61353fd1e6a4ed1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3883861
Commit-Queue: Mark Mentovai <[email protected]>
Auto-Submit: Avi Drissman <[email protected]>
Owners-Override: Avi Drissman <[email protected]>
Reviewed-by: Mark Mentovai <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1044742}
diff --git a/android_webview/renderer/aw_render_frame_ext.h b/android_webview/renderer/aw_render_frame_ext.h
index 522c271b..29e0226b 100644
--- a/android_webview/renderer/aw_render_frame_ext.h
+++ b/android_webview/renderer/aw_render_frame_ext.h
@@ -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.