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

chrome/browser/spellchecker/feedback_sender.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.
 //
 // The |FeedbackSender| object stores the user feedback to spellcheck
 // suggestions in a |Feedback| object.
 //
 // When spelling service returns spellcheck results, these results first arrive
 // in |FeedbackSender| to assign hash identifiers for each
 // misspelling-suggestion pair. If the spelling service identifies the same
@@ skipping 385 matching lines @@
 }
 
 void FeedbackSender::SendFeedback(const std::vector<Misspelling>& feedback_data,
                                   bool is_first_feedback_batch) {
   scoped_ptr<base::Value> feedback_value(BuildFeedbackValue(
       BuildParams(BuildSuggestionInfo(feedback_data, is_first_feedback_batch),
                   language_,
                   country_),
       api_version_));
   std::string feedback;
-  base::JSONWriter::Write(feedback_value.get(), &feedback);
+  base::JSONWriter::Write(*feedback_value, &feedback);
 
   // The tests use this identifier to mock the URL fetcher.
   static const int kUrlFetcherId = 0;
   net::URLFetcher* sender =
       net::URLFetcher::Create(kUrlFetcherId, feedback_service_url_,
                               net::URLFetcher::POST, this).release();
   sender->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                        net::LOAD_DO_NOT_SAVE_COOKIES);
   sender->SetUploadData("application/json", feedback);
   senders_.push_back(sender);
 
   // Request context is NULL in testing.
   if (request_context_.get()) {
     sender->SetRequestContext(request_context_.get());
     sender->Start();
   }
 }
 
 }  // namespace spellcheck