Add documentation to disallow new tab helpers for desktop platforms.
The features should instead use TabFeatures.
Change-Id: I91d31dbf3030fbb40c42161f0e7d222816620cfb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5491924
Commit-Queue: Erik Chen <erikchen@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1293968}
diff --git a/docs/tab_helpers.md b/docs/tab_helpers.md
index 945c012..aaf7312 100644
--- a/docs/tab_helpers.md
+++ b/docs/tab_helpers.md
@@ -4,6 +4,9 @@
of the most basic building blocks of all of Chromium. This document describes
how `WebContents`es are used to build tabs in browser windows.
+Tab Helpers are deprecated for Desktop Chrome. Use TabFeatures instead. See
+[design principles](chrome_browser_design_principles.md).
+
[TOC]
## Introduction
