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

chrome/test/chromedriver/chrome/console_logger.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/test/chromedriver/chrome/console_logger.h"
 
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ skipping 75 matching lines @@
                                                        origin_cstr,
                                                        line_column.c_str(),
                                                        text.c_str()));
 
       return Status(kOk);
     }
   }
 
   // Don't know how to format, log full JSON.
   std::string message_json;
-  base::JSONWriter::Write(&params, &message_json);
+  base::JSONWriter::Write(params, &message_json);
   log_->AddEntry(Log::kWarning, message_json);
   return Status(kOk);
 }