[BackgroundSync] Remove BackgroundSyncRegistrationHandle

content/browser/background_sync/background_sync_service_impl.h

Index: content/browser/background_sync/background_sync_service_impl.h
diff --git a/content/browser/background_sync/background_sync_service_impl.h b/content/browser/background_sync/background_sync_service_impl.h
index 0466e994f7f104bab67714c839b64624dc87a6b2..27a302ba66dd2c5f0d99c7600476dd53cd060e14 100644
--- a/content/browser/background_sync/background_sync_service_impl.h
+++ b/content/browser/background_sync/background_sync_service_impl.h
@@ -38,19 +38,14 @@ class CONTENT_EXPORT BackgroundSyncServiceImpl
                 const RegisterCallback& callback) override;
   void GetRegistrations(int64_t sw_registration_id,
                         const GetRegistrationsCallback& callback) override;
-  void DuplicateRegistrationHandle(
-      BackgroundSyncRegistrationHandle::HandleId handle_id,
-      const DuplicateRegistrationHandleCallback& callback) override;
-  void ReleaseRegistration(
-      BackgroundSyncRegistrationHandle::HandleId handle_id) override;
 
   void OnRegisterResult(const RegisterCallback& callback,
                         BackgroundSyncStatus status,
-                        scoped_ptr<BackgroundSyncRegistrationHandle> result);
+                        scoped_ptr<BackgroundSyncRegistration> result);
   void OnGetRegistrationsResult(
       const GetRegistrationsCallback& callback,
       BackgroundSyncStatus status,
-      scoped_ptr<ScopedVector<BackgroundSyncRegistrationHandle>> result);
+      scoped_ptr<ScopedVector<BackgroundSyncRegistration>> result);
 
   // Called when an error is detected on binding_.
   void OnConnectionError();
@@ -60,11 +55,6 @@ class CONTENT_EXPORT BackgroundSyncServiceImpl
 
   mojo::Binding<BackgroundSyncService> binding_;
 
-  // The registrations that the client might reference.
-  IDMap<BackgroundSyncRegistrationHandle,
-        IDMapOwnPointer,
-        BackgroundSyncRegistrationHandle::HandleId> active_handles_;
-
   base::WeakPtrFactory<BackgroundSyncServiceImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncServiceImpl);