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

chrome/browser/extensions/api/experience_sampling_private/experience_sampling_private_api_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/metrics/field_trial.h"
 #include "chrome/browser/extensions/api/experience_sampling_private/experience_sampling_private_api.h"
 #include "chrome/browser/extensions/extension_api_unittest.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
 
 
 namespace utils = extension_function_test_utils;
 
 namespace extensions {
 
 typedef ExtensionApiUnittest ExperienceSamplingPrivateTest;
 
 // Tests that chrome.experienceSamplingPrivate.getBrowserInfo() returns expected
 // field trials and groups.
 TEST_F(ExperienceSamplingPrivateTest, GetBrowserInfoTest) {
   // Start with an empty FieldTrialList.
-  scoped_ptr<base::FieldTrialList> trial_list(new base::FieldTrialList(NULL));
-  scoped_ptr<base::DictionaryValue> result(RunFunctionAndReturnDictionary(
+  std::unique_ptr<base::FieldTrialList> trial_list(
+      new base::FieldTrialList(NULL));
+  std::unique_ptr<base::DictionaryValue> result(RunFunctionAndReturnDictionary(
       new ExperienceSamplingPrivateGetBrowserInfoFunction(), "[]"));
   ASSERT_TRUE(result->HasKey("variations"));
   std::string trials_string;
   EXPECT_TRUE(result->GetStringWithoutPathExpansion("variations",
                                                     &trials_string));
   ASSERT_EQ("", trials_string);
 
   // Set field trials using a string.
   base::FieldTrialList::CreateTrialsFromString(
       "*Some name/Winner/*xxx/yyyy/*zzz/default/",
       std::set<std::string>());
   result = RunFunctionAndReturnDictionary(
       new ExperienceSamplingPrivateGetBrowserInfoFunction(), "[]");
   ASSERT_TRUE(result->HasKey("variations"));
   EXPECT_TRUE(result->GetStringWithoutPathExpansion("variations",
                                                     &trials_string));
   ASSERT_EQ("Some name/Winner/xxx/yyyy/zzz/default/", trials_string);
 }
 
 }  // namespace extensions