Convert JsonWriter::Write to taking a const ref for the in-param

chrome/browser/devtools/devtools_protocol.cc

 // Copyright (c) 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 "chrome/browser/devtools/devtools_protocol.h"
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/stringprintf.h"
 
@@ skipping 19 matching lines @@
     int command_id,
     const std::string& method,
     scoped_ptr<base::DictionaryValue> params) {
   base::DictionaryValue command;
   command.SetInteger(kIdParam, command_id);
   command.SetString(kMethodParam, method);
   if (params)
     command.Set(kParamsParam, params.release());
 
   std::string json_command;
-  base::JSONWriter::Write(&command, &json_command);
+  base::JSONWriter::Write(command, &json_command);
   return json_command;
 }
 
 // static
 scoped_ptr<base::DictionaryValue>
 DevToolsProtocol::CreateInvalidParamsResponse(int command_id,
                                               const std::string& param) {
   scoped_ptr<base::DictionaryValue> response(new base::DictionaryValue());
   base::DictionaryValue* error_object = new base::DictionaryValue();
   response->Set(kErrorParam, error_object);
@@ skipping 73 matching lines @@
 
   if (!dict->GetInteger(kIdParam, command_id))
     return false;
 
   *error_code = 0;
   base::DictionaryValue* error_dict = nullptr;
   if (dict->GetDictionary(kErrorParam, &error_dict))
     error_dict->GetInteger(kErrorCodeParam, error_code);
   return true;
 }