Add 5 experimental accessibility features on Chrome OS.

chrome/browser/ui/webui/settings/chromeos/a11y_handler.h

+// Copyright 2016 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_SETTINGS_CHROMEOS_A11Y_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_A11Y_HANDLER_H_
+
+#include "base/macros.h"
+#include "chrome/browser/ui/webui/settings/md_settings_ui.h"

[Dan Beam, 2016/03/11 22:07:20]

this is now settings_page_ui_handler.h

+
+namespace content {
+class WebUI;
+}
+
+class Profile;
+
+namespace chromeos {
+namespace settings {
+
+// Chrome OS "Accessibility" settings page UI handler.
+class A11yHandler
+    : public ::settings::SettingsPageUIHandler {
+ public:
+  explicit A11yHandler(content::WebUI* webui);
+  ~A11yHandler() override;
+
+  // SettingsPageUIHandler implementation.
+  void RegisterMessages() override;
+
+ private:
+  // Initializes the page.
+  void HandleInitialize(const base::ListValue* args);
+
+  Profile* profile_;  // Weak pointer.

[Dan Beam, 2016/03/11 22:07:20]

unused

+
+  DISALLOW_COPY_AND_ASSIGN(A11yHandler);
+};
+
+}  // namespace settings
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_A11Y_HANDLER_H_