Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

components/user_manager/known_user.cc

 // Copyright 2015 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/user_manager/known_user.h"
 
 #include <stddef.h>
 
 #include <memory>
+#include <utility>
 
 #include "base/logging.h"
 #include "base/values.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/user_manager/user_manager.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 
 namespace user_manager {
 namespace known_user {
@@ skipping 110 matching lines @@
           element->Clear();
         element->MergeDictionary(&values);
         UpdateIdentity(account_id, *element);
         return;
       }
     }
   }
   std::unique_ptr<base::DictionaryValue> new_value(new base::DictionaryValue());
   new_value->MergeDictionary(&values);
   UpdateIdentity(account_id, *new_value);
-  update->Append(new_value.release());
+  update->Append(std::move(new_value));
 }
 
 bool GetStringPref(const AccountId& account_id,
                    const std::string& path,
                    std::string* out_value) {
   const base::DictionaryValue* user_pref_dict = nullptr;
   if (!FindPrefs(account_id, &user_pref_dict))
     return false;
 
   return user_pref_dict->GetString(path, out_value);
@@ skipping 224 matching lines @@
     }
   }
 }
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterListPref(kKnownUsers);
 }
 
 }  // namespace known_user
 }  // namespace user_manager