Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/net/network_portal_detector_test_utils.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 "chrome/browser/chromeos/net/network_portal_detector_test_utils.h"
 
 #include <stddef.h>
 
 #include <algorithm>
+#include <memory>
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 
 namespace chromeos {
 
 EnumHistogramChecker::EnumHistogramChecker(const std::string& histogram,
                                            int count,
                                            base::HistogramSamples* base)
     : histogram_(histogram), expect_(count), base_(base) {}
@@ skipping 14 matching lines @@
   base::HistogramBase* histogram =
       base::StatisticsRecorder::FindHistogram(histogram_);
   if (!histogram) {
     if (!empty) {
       LOG(ERROR) << "Non-empty expectations for " << histogram_ << " "
                  << "which does not exists.";
       return false;
     }
     return true;
   }
-  scoped_ptr<base::HistogramSamples> samples = histogram->SnapshotSamples();
+  std::unique_ptr<base::HistogramSamples> samples =
+      histogram->SnapshotSamples();
   if (!samples.get()) {
     if (!empty) {
       LOG(ERROR) << "Non-empty expectations for " << histogram_ << " "
                  << "for which samples do not exist.";
       return false;
     }
     return true;
   }
 
   bool ok = true;
   for (size_t i = 0; i < expect_.size(); ++i) {
     const int base = base_ ? base_->GetCount(i) : 0;
     const int actual = samples->GetCount(i) - base;
     if (actual != expect_[i]) {
       LOG(ERROR) << "Histogram: " << histogram_ << ", value #" << i << ", "
                  << "expected: " << expect_[i] << ", actual: " << actual;
       ok = false;
     }
   }
   return ok;
 }
 
 }  // namespace chromeos