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diff --git a/chrome/browser/ui/webui/options2/options_ui2.h b/chrome/browser/ui/webui/options2/options_ui2.h
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+++ b/chrome/browser/ui/webui/options2/options_ui2.h
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+// Copyright (c) 2011 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_OPTIONS2_OPTIONS_UI_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_OPTIONS_UI_H_
+#pragma once
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
+#include "chrome/browser/ui/webui/chrome_web_ui.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/notification_types.h"
+
+// The base class handler of Javascript messages of options pages.
+class OptionsPage2UIHandler : public WebUIMessageHandler,
+                              public content::NotificationObserver {
+ public:
+  OptionsPage2UIHandler();
+  virtual ~OptionsPage2UIHandler();
+
+  // Is this handler enabled?
+  virtual bool IsEnabled();
+
+  // Collects localized strings for options page.
+  virtual void GetLocalizedValues(base::DictionaryValue* localized_strings) = 0;
+
+  // Initialize the page.  Called once the DOM is available for manipulation.
+  // This will be called only once.
+  virtual void Initialize() {}
+
+  // Uninitializes the page.  Called just before the object is destructed.
+  virtual void Uninitialize() {}
+
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages() OVERRIDE {}
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE {}
+
+ protected:
+  struct OptionsStringResource {
+    // The name of the resource in templateData.
+    const char* name;
+    // The .grd ID for the resource (IDS_*).
+    int id;
+  };
+  // A helper for simplifying the process of registering strings in WebUI.
+  static void RegisterStrings(base::DictionaryValue* localized_strings,
+                              const OptionsStringResource* resources,
+                              size_t length);
+
+  // Registers string resources for a page's header and tab title.
+  static void RegisterTitle(base::DictionaryValue* localized_strings,
+                            const std::string& variable_name,
+                            int title_id);
+
+  content::NotificationRegistrar registrar_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OptionsPage2UIHandler);
+};
+
+// An interface for common operations that a host of OptionsPage2UIHandlers
+// should provide.
+class OptionsPage2UIHandlerHost {
+ public:
+  virtual void InitializeHandlers() = 0;
+
+ protected:
+  virtual ~OptionsPage2UIHandlerHost() {}
+};
+
+// The WebUI for chrome:settings-frame.
+class Options2UI : public ChromeWebUI,
+                   public OptionsPage2UIHandlerHost {
+ public:
+  explicit Options2UI(TabContents* contents);
+  virtual ~Options2UI();
+
+  static RefCountedMemory* GetFaviconResourceBytes();
+
+  // WebUI implementation.
+  virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
+  virtual void RenderViewReused(RenderViewHost* render_view_host) OVERRIDE;
+  virtual void DidBecomeActiveForReusedRenderView() OVERRIDE;
+
+  // Overridden from OptionsPage2UIHandlerHost:
+  virtual void InitializeHandlers() OVERRIDE;
+
+ private:
+  // Adds OptionsPageUiHandler to the handlers list if handler is enabled.
+  void AddOptionsPageUIHandler(base::DictionaryValue* localized_strings,
+                               OptionsPage2UIHandler* handler);
+
+  // Sets the WebUI CommandLineString property with arguments passed while
+  // launching chrome.
+  void SetCommandLineString(RenderViewHost* render_view_host);
+
+  bool initialized_handlers_;
+
+  DISALLOW_COPY_AND_ASSIGN(Options2UI);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_OPTIONS_UI_H_