Convert //base to use std::unique_ptr

base/test/histogram_tester_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 "base/test/histogram_tester.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/histogram_samples.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::ElementsAre;
 using ::testing::IsEmpty;
 
 namespace {
 
@@ skipping 15 matching lines @@
 
   HistogramTester tester;
 
   // Verify that no histogram is recorded.
   tester.ExpectTotalCount(kHistogram1, 0);
 
   // Record a histogram after the creation of the recorder.
   UMA_HISTOGRAM_BOOLEAN(kHistogram1, true);
 
   // Verify that one histogram is recorded.
-  scoped_ptr<HistogramSamples> samples(
+  std::unique_ptr<HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation(kHistogram1));
   EXPECT_TRUE(samples);
   EXPECT_EQ(1, samples->TotalCount());
 }
 
 TEST_F(HistogramTesterTest, GetHistogramSamplesSinceCreationNotNull) {
   // Chose the histogram name uniquely, to ensure nothing was recorded for it so
   // far.
   static const char kHistogram[] =
       "GetHistogramSamplesSinceCreationNotNullHistogram";
   HistogramTester tester;
 
   // Verify that the returned samples are empty but not null.
-  scoped_ptr<HistogramSamples> samples(
+  std::unique_ptr<HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation(kHistogram1));
   EXPECT_TRUE(samples);
   tester.ExpectTotalCount(kHistogram, 0);
 }
 
 TEST_F(HistogramTesterTest, TestUniqueSample) {
   HistogramTester tester;
 
   // Record into a sample thrice
   UMA_HISTOGRAM_COUNTS_100(kHistogram2, 2);
@@ skipping 42 matching lines @@
   EXPECT_THAT(tester.GetAllSamples(kHistogram5),
               ElementsAre(Bucket(2, 1), Bucket(3, 2), Bucket(5, 1)));
 }
 
 TEST_F(HistogramTesterTest, TestGetAllSamples_NoSamples) {
   HistogramTester tester;
   EXPECT_THAT(tester.GetAllSamples(kHistogram5), IsEmpty());
 }
 
 }  // namespace base