Convert //base to use std::unique_ptr

base/metrics/sample_vector.h

 // Copyright (c) 2012 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.
 
 // SampleVector implements HistogramSamples interface. It is used by all
 // Histogram based classes to store samples.
 
 #ifndef BASE_METRICS_SAMPLE_VECTOR_H_
 #define BASE_METRICS_SAMPLE_VECTOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include <memory>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 
 namespace base {
 
 class BucketRanges;
 
 class BASE_EXPORT SampleVector : public HistogramSamples {
  public:
   explicit SampleVector(const BucketRanges* bucket_ranges);
   SampleVector(uint64_t id, const BucketRanges* bucket_ranges);
   SampleVector(uint64_t id,
                HistogramBase::AtomicCount* counts,
                size_t counts_size,
                Metadata* meta,
                const BucketRanges* bucket_ranges);
   ~SampleVector() override;
 
   // HistogramSamples implementation:
   void Accumulate(HistogramBase::Sample value,
                   HistogramBase::Count count) override;
   HistogramBase::Count GetCount(HistogramBase::Sample value) const override;
   HistogramBase::Count TotalCount() const override;
-  scoped_ptr<SampleCountIterator> Iterator() const override;
+  std::unique_ptr<SampleCountIterator> Iterator() const override;
 
   // Get count of a specific bucket.
   HistogramBase::Count GetCountAtIndex(size_t bucket_index) const;
 
  protected:
   bool AddSubtractImpl(
       SampleCountIterator* iter,
       HistogramSamples::Operator op) override;  // |op| is ADD or SUBTRACT.
 
   virtual size_t GetBucketIndex(HistogramBase::Sample value) const;
@@ skipping 42 matching lines @@
   const HistogramBase::AtomicCount* counts_;
   size_t counts_size_;
   const BucketRanges* bucket_ranges_;
 
   size_t index_;
 };
 
 }  // namespace base
 
 #endif  // BASE_METRICS_SAMPLE_VECTOR_H_