Convert //sync from scoped_ptr to std::unique_ptr

sync/internal_api/public/attachments/attachment_service.h

 // 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.
 
 #ifndef SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_
 #define SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_
 
+#include <memory>
+
 #include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "sync/api/attachments/attachment.h"
 #include "sync/base/sync_export.h"
 
 namespace syncer {
 
 class AttachmentStore;
 class SyncData;
 
 // AttachmentService is responsible for managing a model type's attachments.
 //
 // Outside of sync code, AttachmentService shouldn't be used directly. Instead
 // use the functionality provided by SyncData and SyncChangeProcessor.
 //
 // Destroying this object does not necessarily cancel outstanding async
 // operations. If you need cancel like semantics, use WeakPtr in the callbacks.
 class SYNC_EXPORT AttachmentService {
  public:
   // The result of a GetOrDownloadAttachments operation.
   enum GetOrDownloadResult {
     GET_SUCCESS,            // No error, all attachments returned.
     GET_UNSPECIFIED_ERROR,  // An unspecified error occurred.
   };
 
-  typedef base::Callback<
-      void(const GetOrDownloadResult&, scoped_ptr<AttachmentMap> attachments)>
+  typedef base::Callback<void(const GetOrDownloadResult&,
+                              std::unique_ptr<AttachmentMap> attachments)>
       GetOrDownloadCallback;
 
   // An interface that embedder code implements to be notified about different
   // events that originate from AttachmentService.
   // This interface will be called from the same thread AttachmentService was
   // created and called.
   class Delegate {
    public:
     virtual ~Delegate() {}
 
@@ skipping 20 matching lines @@
   //
   // A request to upload attachments does not persist across restarts of Chrome.
   //
   // Invokes OnAttachmentUploaded on the Delegate (if provided).
   virtual void UploadAttachments(const AttachmentIdList& attachment_ids) = 0;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_