Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //components

components/prefs/pref_service_unittest.cc

 // Copyright (c) 2012 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 <stddef.h>
 #include <stdint.h>
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 396 matching lines @@
   prefs_.registry()->RegisterListPref(kName);
   PrefChangeRegistrar registrar;
   registrar.Init(&prefs_);
   registrar.Add(kName, observer_.GetCallback());
 
   EXPECT_CALL(observer_, OnPreferenceChanged(_)).Times(0);
   prefs_.RemoveUserPref(kName);
   Mock::VerifyAndClearExpectations(&observer_);
 
   base::ListValue new_value;
-  new_value.Append(new base::StringValue(kValue));
+  new_value.AppendString(kValue);
   observer_.Expect(kName, &new_value);
   prefs_.Set(kName, new_value);
   Mock::VerifyAndClearExpectations(&observer_);
 
   EXPECT_CALL(observer_, OnPreferenceChanged(_)).Times(0);
   prefs_.Set(kName, new_value);
   Mock::VerifyAndClearExpectations(&observer_);
 
   base::ListValue empty;
   observer_.Expect(kName, &empty);
   prefs_.Set(kName, empty);
   Mock::VerifyAndClearExpectations(&observer_);
 }