Convert //base to use std::unique_ptr

base/metrics/histogram_delta_serialization.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 BASE_METRICS_HISTOGRAM_DELTA_SERIALIZATION_H_
 #define BASE_METRICS_HISTOGRAM_DELTA_SERIALIZATION_H_
 
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/base_export.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_flattener.h"
 #include "base/metrics/histogram_snapshot_manager.h"
 #include "base/threading/thread_checker.h"
 
 namespace base {
 
 class HistogramBase;
 
 // Serializes and restores histograms deltas.
 class BASE_EXPORT HistogramDeltaSerialization : public HistogramFlattener {
@@ skipping 37 matching lines @@
   HistogramBase* inconsistencies_histogram_;
   HistogramBase* inconsistencies_unique_histogram_;
   HistogramBase* inconsistent_snapshot_histogram_;
 
   DISALLOW_COPY_AND_ASSIGN(HistogramDeltaSerialization);
 };
 
 }  // namespace base
 
 #endif  // BASE_METRICS_HISTOGRAM_DELTA_SERIALIZATION_H_