Remove use of deprecated base::ListValue::Append(Value*) overload in //chrome/browser/chromeos

chrome/browser/chromeos/policy/network_configuration_updater_unittest.cc

 // Copyright 2013 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 <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 167 matching lines @@
     "  \"Type\": \"UnencryptedConfiguration\""
     "}";
 
 std::string ValueToString(const base::Value& value) {
   std::stringstream str;
   str << value;
   return str.str();
 }
 
 void AppendAll(const base::ListValue& from, base::ListValue* to) {
-  for (base::ListValue::const_iterator it = from.begin(); it != from.end();
-       ++it) {
-    to->Append((*it)->DeepCopy());
-  }
+  for (const auto& value : from)
+    to->Append(value->CreateDeepCopy());
 }
 
 // Matcher to match base::Value.
 MATCHER_P(IsEqualTo,
           value,
           std::string(negation ? "isn't" : "is") + " equal to " +
               ValueToString(*value)) {
   return value->Equals(&arg);
 }
 
@@ skipping 472 matching lines @@
   EXPECT_EQ(ExpectedImportCertificatesCallCount(),
             certificate_importer_->GetAndResetImportCount());
 }
 
 INSTANTIATE_TEST_CASE_P(NetworkConfigurationUpdaterTestWithParamInstance,
                         NetworkConfigurationUpdaterTestWithParam,
                         testing::Values(key::kDeviceOpenNetworkConfiguration,
                                         key::kOpenNetworkConfiguration));
 
 }  // namespace policy