mojo::Callback -> base::Callback

content/child/background_sync/background_sync_provider.h

 // Copyright 2015 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_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_H_
 #define CONTENT_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 43 matching lines @@
       blink::WebSyncGetRegistrationsCallbacks* callbacks) override;
 
   // WorkerThread::Observer implementation.
   void WillStopCurrentWorkerThread() override;
 
  private:
   // Callback handlers
   void RegisterCallback(
       std::unique_ptr<blink::WebSyncRegistrationCallbacks> callbacks,
       blink::mojom::BackgroundSyncError error,
-      const blink::mojom::SyncRegistrationPtr& options);
+      blink::mojom::SyncRegistrationPtr options);
   void GetRegistrationsCallback(
       std::unique_ptr<blink::WebSyncGetRegistrationsCallbacks> callbacks,
       blink::mojom::BackgroundSyncError error,
-      const mojo::Array<blink::mojom::SyncRegistrationPtr>& registrations);
+      mojo::Array<blink::mojom::SyncRegistrationPtr> registrations);
 
   // Helper method that returns an initialized BackgroundSyncServicePtr.
   blink::mojom::BackgroundSyncServicePtr& GetBackgroundSyncServicePtr();
 
   blink::mojom::BackgroundSyncServicePtr background_sync_service_;
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_H_