[Sync] Avoid unregistering object IDs on shutdown

sync/notifier/non_blocking_invalidation_notifier_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/notifier/non_blocking_invalidation_notifier.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/threading/thread.h"
@@ skipping 28 matching lines @@
         new TestURLRequestContextGetter(io_thread_.message_loop_proxy());
     notifier::NotifierOptions notifier_options;
     notifier_options.request_context_getter = request_context_getter_;
     invalidation_notifier_.reset(
         new NonBlockingInvalidationNotifier(
             notifier_options,
             InvalidationVersionMap(),
             std::string(),  // initial_invalidation_state
             MakeWeakHandle(base::WeakPtr<InvalidationStateTracker>()),
             "fake_client_info"));
+    invalidation_notifier_->RegisterHandler(&mock_observer_);
   }
 
   virtual void TearDown() {
-    invalidation_notifier_->UpdateRegisteredIds(&mock_observer_, ObjectIdSet());
+    invalidation_notifier_->UnregisterHandler(&mock_observer_);
     invalidation_notifier_.reset();
     request_context_getter_ = NULL;
     io_thread_.Stop();
     ui_loop_.RunAllPending();
   }
 
   MessageLoop ui_loop_;
   base::Thread io_thread_;
   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
   scoped_ptr<NonBlockingInvalidationNotifier> invalidation_notifier_;
   StrictMock<MockSyncNotifierObserver> mock_observer_;
   notifier::FakeBaseTask fake_base_task_;
 };
 
+// TODO(akalin): Add real unit tests (http://crbug.com/140410).
+
 TEST_F(NonBlockingInvalidationNotifierTest, Basic) {
   InSequence dummy;
 
-  ModelTypeSet models(PREFERENCES, BOOKMARKS, AUTOFILL);
-  invalidation_notifier_->UpdateRegisteredIds(
-      &mock_observer_, ModelTypeSetToObjectIdSet(models));
-
+  const ModelTypeSet models(PREFERENCES, BOOKMARKS, AUTOFILL);
   const ModelTypePayloadMap& type_payloads =
       ModelTypePayloadMapFromEnumSet(models, "payload");
   EXPECT_CALL(mock_observer_, OnNotificationsEnabled());
   EXPECT_CALL(mock_observer_, OnIncomingNotification(
       ModelTypePayloadMapToObjectIdPayloadMap(type_payloads),
       REMOTE_NOTIFICATION));
   EXPECT_CALL(mock_observer_,
               OnNotificationsDisabled(TRANSIENT_NOTIFICATION_ERROR));
   EXPECT_CALL(mock_observer_,
               OnNotificationsDisabled(NOTIFICATION_CREDENTIALS_REJECTED));
 
+  invalidation_notifier_->UpdateRegisteredIds(
+      &mock_observer_, ModelTypeSetToObjectIdSet(models));
+
   invalidation_notifier_->SetStateDeprecated("fake_state");
   invalidation_notifier_->SetUniqueId("fake_id");
   invalidation_notifier_->UpdateCredentials("foo@bar.com", "fake_token");
 
   invalidation_notifier_->OnNotificationsEnabled();
   invalidation_notifier_->OnIncomingNotification(
       ModelTypePayloadMapToObjectIdPayloadMap(type_payloads),
       REMOTE_NOTIFICATION);
   invalidation_notifier_->OnNotificationsDisabled(
       TRANSIENT_NOTIFICATION_ERROR);
   invalidation_notifier_->OnNotificationsDisabled(
       NOTIFICATION_CREDENTIALS_REJECTED);
 
   ui_loop_.RunAllPending();
 }
 
 }  // namespace
 
 }  // namespace syncer