Convert FieldTrialList to Accept a std::unique_ptr

components/omnibox/browser/keyword_provider_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 "components/omnibox/browser/keyword_provider.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 45 matching lines @@
     const base::string16 input;
     const size_t num_results;
     const MatchType<ResultType> output[3];
   };
 
   KeywordProviderTest() : kw_provider_(NULL) {
     // Destroy the existing FieldTrialList before creating a new one to avoid
     // a DCHECK.
     field_trial_list_.reset();
     field_trial_list_.reset(new base::FieldTrialList(
-        new metrics::SHA1EntropyProvider("foo")));
+        base::MakeUnique<metrics::SHA1EntropyProvider>("foo")));
     variations::testing::ClearAllVariationParams();
   }
   ~KeywordProviderTest() override {}
 
   // Should be called at least once during a test case.  This is a separate
   // function from SetUp() because the client may want to set parameters
   // (e.g., field trials) before initializing TemplateURLService and the
   // related internal variables here.
   void SetUpClientAndKeywordProvider();
 
@@ skipping 459 matching lines @@
 
 TEST_F(KeywordProviderTest, DoesNotProvideMatchesOnFocus) {
   SetUpClientAndKeywordProvider();
   AutocompleteInput input(ASCIIToUTF16("aaa"), base::string16::npos,
                           std::string(), GURL(),
                           metrics::OmniboxEventProto::INVALID_SPEC, true, false,
                           true, true, true, TestingSchemeClassifier());
   kw_provider_->Start(input, false);
   ASSERT_TRUE(kw_provider_->matches().empty());
 }