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

chrome/test/chromedriver/chrome/console_logger.cc

Index: chrome/test/chromedriver/chrome/console_logger.cc
diff --git a/chrome/test/chromedriver/chrome/console_logger.cc b/chrome/test/chromedriver/chrome/console_logger.cc
index 9300e638377a17289f71889e531c2432d7c7e4f0..d555702441203b3b6d59e9e9a6c6b1f67c97b348 100644
--- a/chrome/test/chromedriver/chrome/console_logger.cc
+++ b/chrome/test/chromedriver/chrome/console_logger.cc
@@ -93,7 +93,7 @@ Status ConsoleLogger::OnEvent(
 
   // 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);
 }