base: Remove auto raw pointer deduction.

base/test/histogram_tester.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 <stddef.h>
 
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/metrics_hashes.h"
 #include "base/metrics/sample_map.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/strings/string_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 HistogramTester::HistogramTester() {
   StatisticsRecorder::Initialize();  // Safe to call multiple times.
 
   // Record any histogram data that exists when the object is created so it can
   // be subtracted later.
   StatisticsRecorder::Histograms histograms;
   StatisticsRecorder::GetSnapshot(std::string(), &histograms);
-  for (const auto& histogram : histograms) {
+  for (const auto* histogram : histograms) {
     histograms_snapshot_[histogram->histogram_name()] =
         histogram->SnapshotSamples();
   }
 }
 
 HistogramTester::~HistogramTester() {
 }
 
 void HistogramTester::ExpectUniqueSample(
     const std::string& name,
@@ skipping 138 matching lines @@
 
 bool Bucket::operator==(const Bucket& other) const {
   return min == other.min && count == other.count;
 }
 
 void PrintTo(const Bucket& bucket, std::ostream* os) {
   *os << "Bucket " << bucket.min << ": " << bucket.count;
 }
 
 }  // namespace base