| Index: chrome/browser/extensions/component_loader.h | 
| diff --git a/chrome/browser/extensions/component_loader.h b/chrome/browser/extensions/component_loader.h | 
| index 8c68775ad5e9674353ee37fb949e3ebd6c135a6b..beb2e6ba9e26698a016035c61c82210e9cac9e30 100644 | 
| --- a/chrome/browser/extensions/component_loader.h | 
| +++ b/chrome/browser/extensions/component_loader.h | 
| @@ -11,8 +11,8 @@ | 
| #include "base/file_path.h" | 
| #include "base/gtest_prod_util.h" | 
| #include "base/prefs/public/pref_change_registrar.h" | 
| +#include "base/prefs/public/pref_observer.h" | 
| #include "base/values.h" | 
| -#include "content/public/browser/notification_observer.h" | 
|  | 
| class ExtensionServiceInterface; | 
| class PrefService; | 
| @@ -22,7 +22,7 @@ namespace extensions { | 
| class Extension; | 
|  | 
| // For registering, loading, and unloading component extensions. | 
| -class ComponentLoader : public content::NotificationObserver { | 
| +class ComponentLoader : public PrefObserver { | 
| public: | 
| ComponentLoader(ExtensionServiceInterface* extension_service, | 
| PrefService* prefs, | 
| @@ -69,10 +69,9 @@ class ComponentLoader : public content::NotificationObserver { | 
| // Adds the default component extensions. | 
| void AddDefaultComponentExtensions(); | 
|  | 
| -  // 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; | 
|  | 
| static void RegisterUserPrefs(PrefService* prefs); | 
|  | 
|  |