| Index: chrome/browser/extensions/extension_service.h | 
| diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h | 
| index 515b3f4090a2e60258a64ab37e05c2796ca2b290..d1470fb5a983e528f7681c1dca5a161905a1ceb9 100644 | 
| --- a/chrome/browser/extensions/extension_service.h | 
| +++ b/chrome/browser/extensions/extension_service.h | 
| @@ -37,6 +37,7 @@ | 
| #include "content/common/notification_registrar.h" | 
|  | 
| class ExtensionBrowserEventRouter; | 
| +class ExtensionPreferenceEventRouter; | 
| class ExtensionServiceBackend; | 
| class ExtensionToolbarModel; | 
| class ExtensionUpdater; | 
| @@ -561,6 +562,8 @@ class ExtensionService | 
|  | 
| scoped_ptr<ExtensionBrowserEventRouter> browser_event_router_; | 
|  | 
| +  scoped_ptr<ExtensionPreferenceEventRouter> preference_event_router_; | 
| + | 
| // A collection of external extension providers.  Each provider reads | 
| // a source of external extension information.  Examples include the | 
| // windows registry and external_extensions.json. | 
|  |