| Index: chrome/browser/ui/gtk/gtk_theme_service.cc | 
| diff --git a/chrome/browser/ui/gtk/gtk_theme_service.cc b/chrome/browser/ui/gtk/gtk_theme_service.cc | 
| index 814c53584a7dc8bc1f2bd378f635513ccb15e228..cfb3368ebc44c13440cd637b1ffe44a1cf6f4622 100644 | 
| --- a/chrome/browser/ui/gtk/gtk_theme_service.cc | 
| +++ b/chrome/browser/ui/gtk/gtk_theme_service.cc | 
| @@ -367,15 +367,10 @@ bool GtkThemeService::UsingNativeTheme() const { | 
| return use_gtk_; | 
| } | 
|  | 
| -void GtkThemeService::Observe(int type, | 
| -                              const content::NotificationSource& source, | 
| -                              const content::NotificationDetails& details) { | 
| -  if ((type == chrome::NOTIFICATION_PREF_CHANGED) && | 
| -      (*content::Details<std::string>(details).ptr() == | 
| -          prefs::kUsesSystemTheme)) { | 
| +void GtkThemeService::OnPreferenceChanged(PrefServiceBase* service, | 
| +                                          const std::string& pref_name) { | 
| +  if (pref_name == prefs::kUsesSystemTheme) { | 
| use_gtk_ = profile()->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme); | 
| -  } else { | 
| -    ThemeService::Observe(type, source, details); | 
| } | 
| } | 
|  | 
|  |