Convert FieldTrialList to Accept a std::unique_ptr

chrome/browser/predictors/resource_prefetch_common_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/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/statistics_recorder.h"
 #include "chrome/browser/net/prediction_options.h"
 #include "chrome/browser/predictors/resource_prefetch_common.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/pref_names.h"
@@ skipping 86 matching lines @@
   std::unique_ptr<base::FieldTrialList> field_trial_list_;
 };
 
 ResourcePrefetchCommonTest::ResourcePrefetchCommonTest()
     : loop_(base::MessageLoop::TYPE_DEFAULT),
       ui_thread_(content::BrowserThread::UI, &loop_),
       profile_(new TestingProfile()) { }
 
 void ResourcePrefetchCommonTest::SetUp() {
   field_trial_list_.reset(new base::FieldTrialList(
-      new metrics::SHA1EntropyProvider("ResourcePrefetchCommonTest")));
+      base::MakeUnique<metrics::SHA1EntropyProvider>(
+          "ResourcePrefetchCommonTest")));
   base::StatisticsRecorder::Initialize();
 }
 
 TEST_F(ResourcePrefetchCommonTest, FieldTrialNotSpecified) {
   ResourcePrefetchPredictorConfig config;
   EXPECT_FALSE(
       IsSpeculativeResourcePrefetchingEnabled(profile_.get(), &config));
   TestIsPrefetchDisabled(config);
 }
 
@@ skipping 193 matching lines @@
     TestIsPrefetchLearning(config);
   }
   {
     std::unique_ptr<NetworkChangeNotifier> mock(
         new MockNetworkChangeNotifier4G);
     TestIsPrefetchLearning(config);
   }
 }
 
 }  // namespace predictors