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

media/base/media_log.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 "media/base/media_log.h"
 
 #include <string>
 
 #include "base/atomic_sequence_num.h"
 #include "base/json/json_writer.h"
@@ skipping 123 matching lines @@
   // event for figuring out media pipeline failures, and just reporting
   // pipeline status as numeric code is not very helpful/user-friendly.
   int error_code = 0;
   if (event.type == MediaLogEvent::PIPELINE_ERROR &&
       event.params.GetInteger("pipeline_error", &error_code)) {
     PipelineStatus status = static_cast<PipelineStatus>(error_code);
     return EventTypeToString(event.type) + " " +
         media::MediaLog::PipelineStatusToString(status);
   }
   std::string params_json;
-  base::JSONWriter::Write(&event.params, &params_json);
+  base::JSONWriter::Write(event.params, &params_json);
   return EventTypeToString(event.type) + " " + params_json;
 }
 
 MediaLog::MediaLog() : id_(g_media_log_count.GetNext()) {}
 
 MediaLog::~MediaLog() {}
 
 void MediaLog::AddEvent(scoped_ptr<MediaLogEvent> event) {}
 
 scoped_ptr<MediaLogEvent> MediaLog::CreateEvent(MediaLogEvent::Type type) {
@@ skipping 129 matching lines @@
     : level_(level), log_cb_(log_cb) {
 }
 
 LogHelper::~LogHelper() {
   if (log_cb_.is_null())
     return;
   log_cb_.Run(level_, stream_.str());
 }
 
 }  //namespace media