Remove raw DictionaryValue::Set in //components

components/search_engines/default_search_policy_handler.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/search_engines/default_search_policy_handler.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 18 matching lines @@
                    const char* policy_name,
                    const char* key,
                    base::DictionaryValue* dict) {
   DCHECK(dict);
   const base::Value* policy_value = policies.GetValue(policy_name);
   const base::ListValue* policy_list = NULL;
   if (policy_value) {
     bool is_list = policy_value->GetAsList(&policy_list);
     DCHECK(is_list);
   }
-  dict->Set(key, policy_list ? policy_list->DeepCopy() : new base::ListValue());
+  dict->Set(key, policy_list ? base::MakeUnique<base::ListValue>(*policy_list)
+                             : base::MakeUnique<base::ListValue>());
 }
 
 // Extracts a string from a policy value and adds it to a pref dictionary.
 void SetStringInPref(const PolicyMap& policies,
                      const char* policy_name,
                      const char* key,
                      base::DictionaryValue* dict) {
   DCHECK(dict);
   const base::Value* policy_value = policies.GetValue(policy_name);
   std::string str;
@@ skipping 222 matching lines @@
 void DefaultSearchPolicyHandler::EnsureListPrefExists(
     PrefValueMap* prefs,
     const std::string& path) {
   base::Value* value;
   base::ListValue* list_value;
   if (!prefs->GetValue(path, &value) || !value->GetAsList(&list_value))
     prefs->SetValue(path, base::MakeUnique<base::ListValue>());
 }
 
 }  // namespace policy