| Index: chrome/browser/ui/app_list/apps_model_builder.h | 
| diff --git a/chrome/browser/ui/app_list/apps_model_builder.h b/chrome/browser/ui/app_list/apps_model_builder.h | 
| index 5c91583c3d4476504ffbcd2d5fbf0012c1a01897..b943a9ad366d352d87b557a4eb31be39987b3f81 100644 | 
| --- a/chrome/browser/ui/app_list/apps_model_builder.h | 
| +++ b/chrome/browser/ui/app_list/apps_model_builder.h | 
| @@ -9,6 +9,7 @@ | 
|  | 
| #include "base/gtest_prod_util.h" | 
| #include "base/prefs/public/pref_change_registrar.h" | 
| +#include "base/prefs/public/pref_observer.h" | 
| #include "content/public/browser/notification_observer.h" | 
| #include "content/public/browser/notification_registrar.h" | 
| #include "ui/app_list/app_list_model.h" | 
| @@ -19,6 +20,7 @@ class ExtensionAppItem; | 
| class Profile; | 
|  | 
| class AppsModelBuilder : public content::NotificationObserver, | 
| +                         public PrefObserver, | 
| public ui::ListModelObserver { | 
| public: | 
| AppsModelBuilder(Profile* profile, | 
| @@ -56,6 +58,10 @@ class AppsModelBuilder : public content::NotificationObserver, | 
| const content::NotificationSource& source, | 
| const content::NotificationDetails& details) OVERRIDE; | 
|  | 
| +  // PrefObserver | 
| +  virtual void OnPreferenceChanged(PrefServiceBase* service, | 
| +                                   const std::string& pref_name) OVERRIDE; | 
| + | 
| // ui::ListModelObserver overrides: | 
| virtual void ListItemsAdded(size_t start, size_t count) OVERRIDE; | 
| virtual void ListItemsRemoved(size_t start, size_t count) OVERRIDE; | 
|  |