Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

extensions/browser/api/networking_private/networking_private_linux.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 "extensions/browser/api/networking_private/networking_private_linux.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 65 matching lines @@
   return ParseNetworkGuid(guid, &unused_1, &unused_2, ssid);
 }
 
 // Iterates over the map cloning the contained networks to a
 // list then returns the list.
 std::unique_ptr<base::ListValue> CopyNetworkMapToList(
     const NetworkingPrivateLinux::NetworkMap& network_map) {
   std::unique_ptr<base::ListValue> network_list(new base::ListValue);
 
   for (const auto& network : network_map) {
-    network_list->Append(network.second->DeepCopy());
+    network_list->Append(network.second->CreateDeepCopy());
   }
 
   return network_list;
 }
 
 // Constructs a network guid from its constituent parts.
 std::string ConstructNetworkGuid(const dbus::ObjectPath& device_path,
                                  const dbus::ObjectPath& access_point_path,
                                  const std::string& ssid) {
   return device_path.value() + "|" + access_point_path.value() + "|" + ssid;
@@ skipping 1102 matching lines @@
                  base::Unretained(this), base::Passed(&guid_list)));
 }
 
 void NetworkingPrivateLinux::OnNetworksChangedEventTask(
     std::unique_ptr<GuidList> guid_list) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   OnNetworksChangedEventOnUIThread(*guid_list);
 }
 
 }  // namespace extensions