Convert //base to use std::unique_ptr

base/metrics/statistics_recorder.cc

 // 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.
 
 #include "base/metrics/statistics_recorder.h"
 
+#include <memory>
+
 #include "base/at_exit.h"
 #include "base/debug/leak_annotations.h"
 #include "base/json/string_escape.h"
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/metrics_hashes.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/lock.h"
 #include "base/values.h"
 
 namespace {
 
 // Initialize histogram statistics gathering system.
@@ skipping 118 matching lines @@
     }
   }
   delete histogram_to_delete;
   return histogram_to_return;
 }
 
 // static
 const BucketRanges* StatisticsRecorder::RegisterOrDeleteDuplicateRanges(
     const BucketRanges* ranges) {
   DCHECK(ranges->HasValidChecksum());
-  scoped_ptr<const BucketRanges> ranges_deleter;
+  std::unique_ptr<const BucketRanges> ranges_deleter;
 
   if (lock_ == NULL) {
     ANNOTATE_LEAKING_OBJECT_PTR(ranges);
     return ranges;
   }
 
   base::AutoLock auto_lock(*lock_);
   if (ranges_ == NULL) {
     ANNOTATE_LEAKING_OBJECT_PTR(ranges);
     return ranges;
@@ skipping 261 matching lines @@
   if (VLOG_IS_ON(1))
     AtExitManager::RegisterCallback(&DumpHistogramsToVlog, this);
 }
 
 // static
 void StatisticsRecorder::Reset() {
   // If there's no lock then there is nothing to reset.
   if (!lock_)
     return;
 
-  scoped_ptr<HistogramMap> histograms_deleter;
-  scoped_ptr<CallbackMap> callbacks_deleter;
-  scoped_ptr<RangesMap> ranges_deleter;
+  std::unique_ptr<HistogramMap> histograms_deleter;
+  std::unique_ptr<CallbackMap> callbacks_deleter;
+  std::unique_ptr<RangesMap> ranges_deleter;
   // We don't delete lock_ on purpose to avoid having to properly protect
   // against it going away after we checked for NULL in the static methods.
   {
     base::AutoLock auto_lock(*lock_);
     histograms_deleter.reset(histograms_);
     callbacks_deleter.reset(callbacks_);
     ranges_deleter.reset(ranges_);
     histograms_ = NULL;
     callbacks_ = NULL;
     ranges_ = NULL;
@@ skipping 12 matching lines @@
 // static
 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL;
 // static
 StatisticsRecorder::CallbackMap* StatisticsRecorder::callbacks_ = NULL;
 // static
 StatisticsRecorder::RangesMap* StatisticsRecorder::ranges_ = NULL;
 // static
 base::Lock* StatisticsRecorder::lock_ = NULL;
 
 }  // namespace base