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

chrome/test/chromedriver/chrome/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 "chrome/test/chromedriver/chrome/log.h"
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
@@ skipping 67 matching lines @@
 
 bool IsVLogOn(int vlog_level) {
   if (!g_is_vlog_on_func)
     return false;
   return g_is_vlog_on_func(vlog_level);
 }
 
 std::string PrettyPrintValue(const base::Value& value) {
   std::string json;
   base::JSONWriter::WriteWithOptions(
-      &value, base::JSONWriter::OPTIONS_PRETTY_PRINT, &json);
+      value, base::JSONWriter::OPTIONS_PRETTY_PRINT, &json);
 #if defined(OS_WIN)
   base::RemoveChars(json, "\r", &json);
 #endif
   // Remove the trailing newline.
   if (json.length())
     json.resize(json.length() - 1);
   return json;
 }
 
 std::string FormatValueForDisplay(const base::Value& value) {
   scoped_ptr<base::Value> copy(SmartDeepCopy(&value));
   return PrettyPrintValue(*copy);
 }
 
 std::string FormatJsonForDisplay(const std::string& json) {
   scoped_ptr<base::Value> value(base::JSONReader::Read(json));
   if (!value)
     value.reset(new base::StringValue(json));
   return FormatValueForDisplay(*value);
 }