Cleanup geofence registrations when a service worker is unregistered.

content/browser/service_worker/service_worker_context_observer.h

Index: content/browser/service_worker/service_worker_context_observer.h
diff --git a/content/browser/service_worker/service_worker_context_observer.h b/content/browser/service_worker/service_worker_context_observer.h
index 410b7689ee0bc98ccc135a8fb258e8073e9d994a..dbc79bacac6096173b508a61301f028b41a128aa 100644
--- a/content/browser/service_worker/service_worker_context_observer.h
+++ b/content/browser/service_worker/service_worker_context_observer.h
@@ -59,7 +59,8 @@ class ServiceWorkerContextObserver {
                                       int thread_id,
                                       const ConsoleMessage& message) {}
   virtual void OnRegistrationStored(const GURL& pattern) {}
-  virtual void OnRegistrationDeleted(const GURL& pattern) {}
+  virtual void OnRegistrationDeleted(int64 registration_id,
+                                     const GURL& pattern) {}
 
   // Notified when the storage corruption recovery is completed and all stored
   // data is wiped out.