Add Now setting and migration logic.

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

 // 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_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 285 matching lines @@
       const base::string16& audio_history_state,
       bool success,
       bool logging_enabled);
 
   // Callback for "requestHotwordAvailable" message.
   void HandleRequestHotwordAvailable(const base::ListValue* args);
 
   // Callback for "launchHotwordAudioVerificationApp" message.
   void HandleLaunchHotwordAudioVerificationApp(const base::ListValue* args);
 
+  // Callback for "requestGoogleNowAvailable" message.
+  void HandleRequestGoogleNowAvailable(const base::ListValue* args);
+
   // Callback for "launchEasyUnlockSetup" message.
   void HandleLaunchEasyUnlockSetup(const base::ListValue* args);
 
   // Callback for "refreshExtensionControlIndicators" message.
   void HandleRefreshExtensionControlIndicators(const base::ListValue* args);
 
 #if defined(OS_CHROMEOS)
   // Opens the wallpaper manager component extension.
   void HandleOpenWallpaperManager(const base::ListValue* args);
 
@@ skipping 88 matching lines @@
 
   // Used to get WeakPtr to self for use on the UI thread.
   base::WeakPtrFactory<BrowserOptionsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_