Help: Implement the initial version of the cross-platform help/about page.

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
new file mode 100644
index 0000000000000000000000000000000000000000..cc604fdb81c13c0ca397296a66a16ebf0ec08ad3
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+++ b/chrome/browser/ui/webui/help/help_ui.h
@@ -0,0 +1,20 @@
+// 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_
+#pragma once
+
+#include "content/public/browser/web_ui_controller.h"
+
+class HelpUI : public content::WebUIController {
+ public:
+  explicit HelpUI(content::WebUI* web_ui);
+  virtual ~HelpUI();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HelpUI);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_HELP_HELP_UI_H_