Add an automatic settings reset banner.

chrome/browser/ui/webui/options/automatic_settings_reset_handler.h

+// Copyright 2014 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_OPTIONS_AUTOMATIC_SETTINGS_RESET_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS_AUTOMATIC_SETTINGS_RESET_HANDLER_H_
+
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/ui/webui/options/options_ui.h"
+
+namespace options {
+
+// Handler for the banner that displays a settings reset event at the top of the
+// settings page.
+class AutomaticSettingsResetHandler
+    : public OptionsPageUIHandler,
+      public base::SupportsWeakPtr<AutomaticSettingsResetHandler> {
+ public:
+  AutomaticSettingsResetHandler();
+  virtual ~AutomaticSettingsResetHandler();
+
+  // OptionsPageUIHandler implementation.
+  virtual void GetLocalizedValues(
+      base::DictionaryValue* localized_strings) OVERRIDE;
+  virtual void InitializePage() OVERRIDE;
+
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages() OVERRIDE;
+
+ private:
+  // Called when the user dismisses the automatic settings reset banner.
+  void OnDismissedAutomaticSettingsResetBanner(const base::ListValue* value);
+
+  DISALLOW_COPY_AND_ASSIGN(AutomaticSettingsResetHandler);
+};
+
+}  // namespace options
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_AUTOMATIC_SETTINGS_RESET_HANDLER_H_