Use std::move() instead of .Pass() in remoting/host

remoting/host/host_config.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 "remoting/host/host_config.h"
 
 #include "base/files/file_util.h"
 #include "base/files/important_file_writer.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/values.h"
 
 namespace remoting {
 
 scoped_ptr<base::DictionaryValue> HostConfigFromJson(
     const std::string& json) {
   scoped_ptr<base::Value> value =
       base::JSONReader::Read(json, base::JSON_ALLOW_TRAILING_COMMAS);
   if (!value || !value->IsType(base::Value::TYPE_DICTIONARY)) {
     LOG(WARNING) << "Failed to parse host config from JSON";
     return nullptr;
   }
 
-  scoped_ptr<base::DictionaryValue> config(
-      static_cast<base::DictionaryValue*>(value.release()));
-  return config.Pass();
+  return make_scoped_ptr(static_cast<base::DictionaryValue*>(value.release()));
 }
 
 std::string HostConfigToJson(const base::DictionaryValue& host_config) {
   std::string data;
   base::JSONWriter::Write(host_config, &data);
   return data;
 }
 
 scoped_ptr<base::DictionaryValue> HostConfigFromJsonFile(
     const base::FilePath& config_file) {
   // TODO(sergeyu): Implement better error handling here.
   std::string serialized;
   if (!base::ReadFileToString(config_file, &serialized)) {
     LOG(WARNING) << "Failed to read " << config_file.value();
     return nullptr;
   }
 
   return HostConfigFromJson(serialized);
 }
 
 bool HostConfigToJsonFile(const base::DictionaryValue& host_config,
                           const base::FilePath& config_file) {
   std::string serialized = HostConfigToJson(host_config);
   return base::ImportantFileWriter::WriteFileAtomically(config_file,
                                                         serialized);
 }
 
 }  // namespace remoting