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

chrome/browser/caps/generate_state_json.cc

 // Copyright 2015 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/browser/caps/generate_state_json.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 72 matching lines @@
   void OnDataReadyDelayed() {
     model_->StopListening();
     // Task manager finally computed (most) values. Lets generate the JSON
     // data and send it over the pipe.
     base::DictionaryValue dict;
     GatherComputerValues(&dict);
     GatherChromeValues(&dict);
 
     std::string json;
     auto options = base::JSONWriter::OPTIONS_PRETTY_PRINT;
-    if (!base::JSONWriter::WriteWithOptions(&dict, options, &json))
+    if (!base::JSONWriter::WriteWithOptions(dict, options, &json))
       return;
 
     file_.WriteAtCurrentPos(json.c_str(), json.size());
     file_.Close();
     // this Release() causes our destruction.
     Release();
   }
 
  private:
   // TODO(cpu): split the key names below into a separate header that both
@@ skipping 91 matching lines @@
 }  // namespace
 
 namespace caps {
 
 void GenerateStateJSON(
     scoped_refptr<TaskManagerModel> model, base::File file) {
   new TaskManagerDataDumper(model, file.Pass());
 }
 
 }