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

components/cloud_devices/common/cloud_device_description.cc

 // Copyright 2014 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 "components/cloud_devices/common/cloud_device_description.h"
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/values.h"
@@ skipping 29 matching lines @@
   base::DictionaryValue* description = NULL;
   if (!parsed || !parsed->GetAsDictionary(&description))
     return false;
   ignore_result(parsed.release());
   return InitFromDictionary(make_scoped_ptr(description));
 }
 
 std::string CloudDeviceDescription::ToString() const {
   std::string json;
   base::JSONWriter::WriteWithOptions(
-      root_.get(), base::JSONWriter::OPTIONS_PRETTY_PRINT, &json);
+      *root_, base::JSONWriter::OPTIONS_PRETTY_PRINT, &json);
   return json;
 }
 
 const base::DictionaryValue* CloudDeviceDescription::GetItem(
     const std::string& path) const {
   const base::DictionaryValue* value = NULL;
   root_->GetDictionary(path, &value);
   return value;
 }
 
@@ skipping 12 matching lines @@
 }
 
 base::ListValue* CloudDeviceDescription::CreateListItem(
     const std::string& path) {
   base::ListValue* value = new base::ListValue;
   root_->Set(path, value);
   return value;
 }
 
 }  // namespace cloud_devices