| Index: chrome/browser/ui/webui/options/font_settings_handler.h | 
| diff --git a/chrome/browser/ui/webui/options/font_settings_handler.h b/chrome/browser/ui/webui/options/font_settings_handler.h | 
| index 9b263c7dc097dc274ec79e6fee13d20414a44267..1c6af163205aaec59f704977fa516a72ebef83cc 100644 | 
| --- a/chrome/browser/ui/webui/options/font_settings_handler.h | 
| +++ b/chrome/browser/ui/webui/options/font_settings_handler.h | 
| @@ -6,6 +6,7 @@ | 
| #define CHROME_BROWSER_UI_WEBUI_OPTIONS_FONT_SETTINGS_HANDLER_H_ | 
|  | 
| #include "base/memory/scoped_ptr.h" | 
| +#include "base/prefs/public/pref_observer.h" | 
| #include "chrome/browser/api/prefs/pref_member.h" | 
| #include "chrome/browser/ui/webui/options/options_ui.h" | 
|  | 
| @@ -16,7 +17,8 @@ class ListValue; | 
| namespace options { | 
|  | 
| // Font settings overlay page UI handler. | 
| -class FontSettingsHandler : public OptionsPageUIHandler { | 
| +class FontSettingsHandler : public OptionsPageUIHandler, | 
| +                            public PrefObserver { | 
| public: | 
| FontSettingsHandler(); | 
| virtual ~FontSettingsHandler(); | 
| @@ -28,10 +30,9 @@ class FontSettingsHandler : public OptionsPageUIHandler { | 
| // WebUIMessageHandler implementation. | 
| virtual void RegisterMessages() OVERRIDE; | 
|  | 
| -  // content::NotificationObserver implementation. | 
| -  virtual void Observe(int type, | 
| -                       const content::NotificationSource& source, | 
| -                       const content::NotificationDetails& details) OVERRIDE; | 
| +  // PrefObserver implementation. | 
| +  virtual void OnPreferenceChanged(PrefServiceBase* service, | 
| +                                   const std::string& pref_name) OVERRIDE; | 
|  | 
| private: | 
| void HandleFetchFontsData(const ListValue* args); | 
|  |