Add RetainedRef uses where needed.

content/browser/service_worker/service_worker_version_unittest.cc

 // Copyright 2014 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 <stdint.h>
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "content/browser/message_port_service.h"
 #include "content/browser/service_worker/embedded_worker_registry.h"
@@ skipping 552 matching lines @@
   // Version's status must not have changed during activation.
   EXPECT_FALSE(status_change_called);
   EXPECT_EQ(ServiceWorkerVersion::ACTIVATING, version_->status());
 }
 
 TEST_F(ServiceWorkerVersionTest, RepeatedlyObserveStatusChanges) {
   EXPECT_EQ(ServiceWorkerVersion::NEW, version_->status());
 
   // Repeatedly observe status changes (the callback re-registers itself).
   std::vector<ServiceWorkerVersion::Status> statuses;
-  version_->RegisterStatusChangeCallback(
-      base::Bind(&ObserveStatusChanges, version_, &statuses));
+  version_->RegisterStatusChangeCallback(base::Bind(
+      &ObserveStatusChanges, base::RetainedRef(version_), &statuses));
 
   version_->SetStatus(ServiceWorkerVersion::INSTALLING);
   version_->SetStatus(ServiceWorkerVersion::INSTALLED);
   version_->SetStatus(ServiceWorkerVersion::ACTIVATING);
   version_->SetStatus(ServiceWorkerVersion::ACTIVATED);
   version_->SetStatus(ServiceWorkerVersion::REDUNDANT);
 
   // Verify that we could successfully observe repeated status changes.
   ASSERT_EQ(5U, statuses.size());
   ASSERT_EQ(ServiceWorkerVersion::INSTALLING, statuses[0]);
@@ skipping 906 matching lines @@
   helper_->SimulateSendSimpleEventResult(
       version_->embedded_worker()->embedded_worker_id(), request_id,
       blink::WebServiceWorkerEventResultRejected);
   runner->Run();
 
   // Verify callback was called with correct status.
   EXPECT_EQ(SERVICE_WORKER_ERROR_EVENT_WAITUNTIL_REJECTED, status);
 }
 
 }  // namespace content