Convert //base to use std::unique_ptr

base/metrics/statistics_recorder_unittest.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 <stddef.h>
 
+#include <memory>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/persistent_histogram_allocator.h"
 #include "base/metrics/sparse_histogram.h"
-#include "base/metrics/statistics_recorder.h"
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 class StatisticsRecorderTest : public testing::Test {
  protected:
   void SetUp() override {
     // Get this first so it never gets created in persistent storage and will
     // not appear in the StatisticsRecorder after it is re-initialized.
@@ skipping 239 matching lines @@
 
 TEST_F(StatisticsRecorderTest, ToJSON) {
   LOCAL_HISTOGRAM_COUNTS("TestHistogram1", 30);
   LOCAL_HISTOGRAM_COUNTS("TestHistogram1", 40);
   LOCAL_HISTOGRAM_COUNTS("TestHistogram2", 30);
   LOCAL_HISTOGRAM_COUNTS("TestHistogram2", 40);
 
   std::string json(StatisticsRecorder::ToJSON(std::string()));
 
   // Check for valid JSON.
-  scoped_ptr<Value> root = JSONReader::Read(json);
+  std::unique_ptr<Value> root = JSONReader::Read(json);
   ASSERT_TRUE(root.get());
 
   DictionaryValue* root_dict = NULL;
   ASSERT_TRUE(root->GetAsDictionary(&root_dict));
 
   // No query should be set.
   ASSERT_FALSE(root_dict->HasKey("query"));
 
   ListValue* histogram_list = NULL;
   ASSERT_TRUE(root_dict->GetList("histograms", &histogram_list));
@@ skipping 221 matching lines @@
   HistogramBase* histogram = Histogram::FactoryGet("TestHistogram", 1, 1000, 10,
                                                    HistogramBase::kNoFlags);
   EXPECT_TRUE(histogram);
   histogram->Add(1);
 
   EXPECT_TRUE(callback_wrapper.called);
   EXPECT_EQ(callback_wrapper.last_histogram_value, 1);
 }
 
 }  // namespace base