Unframe chrome://extensions as it's the last (and only) uber item

chrome/browser/ui/webui/help/help_ui.h

Index: chrome/browser/ui/webui/help/help_ui.h
diff --git a/chrome/browser/ui/webui/help/help_ui.h b/chrome/browser/ui/webui/help/help_ui.h
deleted file mode 100644
index c2b8aca5c148b4180589d483971cc6f954e98c98..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/webui/help/help_ui.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_UI_WEBUI_HELP_HELP_UI_H_
-#define CHROME_BROWSER_UI_WEBUI_HELP_HELP_UI_H_
-
-#include "base/macros.h"
-#include "content/public/browser/web_ui_controller.h"
-
-class HelpUI : public content::WebUIController {
- public:
-  explicit HelpUI(content::WebUI* web_ui);
-  ~HelpUI() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(HelpUI);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_HELP_HELP_UI_H_