Convert //sync from scoped_ptr to std::unique_ptr

sync/engine/worker_entity_tracker_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 "sync/engine/worker_entity_tracker.h"
 
 #include <stdint.h>
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "base/time/time.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/non_blocking_sync_common.h"
 #include "sync/syncable/syncable_util.h"
 #include "sync/util/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer_v2 {
 
 // Some simple tests for the WorkerEntityTracker.
@@ skipping 48 matching lines @@
     response_data.response_version = response_version;
     return response_data;
   }
 
   const std::string kServerId;
   const std::string kClientTag;
   const std::string kClientTagHash;
   const base::Time kCtime;
   const base::Time kMtime;
   sync_pb::EntitySpecifics specifics;
-  scoped_ptr<WorkerEntityTracker> entity_;
+  std::unique_ptr<WorkerEntityTracker> entity_;
 };
 
 // Construct a new entity from a server update.  Then receive another update.
 TEST_F(WorkerEntityTrackerTest, FromUpdateResponse) {
   EXPECT_FALSE(entity_->HasPendingCommit());
   entity_->ReceiveUpdate(20);
   EXPECT_FALSE(entity_->HasPendingCommit());
 }
 
 // Construct a new entity from a commit request.  Then serialize it.
@@ skipping 53 matching lines @@
   CommitRequestData data = MakeCommitRequestData(22, 33);
   entity_->RequestCommit(data);
 
   EXPECT_TRUE(entity_->HasPendingCommit());
 
   entity_->ReceiveUpdate(33);  // Version 33 == 33.
   EXPECT_TRUE(entity_->HasPendingCommit());
 }
 
 }  // namespace syncer_v2