Stop passing const-reference of SWRegistration in all GetRegistrationsCallbacks.

content/browser/service_worker/service_worker_version.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
 #include <stdint.h>
 
 #include <functional>
@@ skipping 573 matching lines @@
 
   void OnRegisterForeignFetchScopes(const std::vector<GURL>& sub_scopes,
                                     const std::vector<url::Origin>& origins);
 
   void DidEnsureLiveRegistrationForStartWorker(
       ServiceWorkerMetrics::EventType purpose,
       Status prestart_status,
       bool is_browser_startup_complete,
       const StatusCallback& callback,
       ServiceWorkerStatusCode status,
-      const scoped_refptr<ServiceWorkerRegistration>& registration);
+      scoped_refptr<ServiceWorkerRegistration> registration);
   void StartWorkerInternal();
 
   void DidSkipWaiting(int request_id);
 
   void OnGetClientFinished(int request_id,
                            const ServiceWorkerClientInfo& client_info);
 
   void OnGetClientsFinished(int request_id, ServiceWorkerClients* clients);
 
   // The timeout timer periodically calls OnTimeoutTimer, which stops the worker
@@ skipping 27 matching lines @@
   // deduce a reason.
   ServiceWorkerStatusCode DeduceStartWorkerFailureReason(
       ServiceWorkerStatusCode default_code);
 
   // Sets |stale_time_| if this worker is stale, causing an update to eventually
   // occur once the worker stops or is running too long.
   void MarkIfStale();
 
   void FoundRegistrationForUpdate(
       ServiceWorkerStatusCode status,
-      const scoped_refptr<ServiceWorkerRegistration>& registration);
+      scoped_refptr<ServiceWorkerRegistration> registration);
 
   void OnStoppedInternal(EmbeddedWorkerStatus old_status);
 
   // Called when the remote side of a connection to a mojo service is lost.
   void OnMojoConnectionError(const char* service_name);
 
   // Called at the beginning of each Dispatch*Event function: records
   // the time elapsed since idle (generally the time since the previous
   // event ended).
   void OnBeginEvent();
@@ skipping 150 matching lines @@
 
   // At this point |this| can have been deleted, so don't do anything other
   // than returning.
 
   return true;
 }
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_