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

cloud_print/service/win/chrome_launcher.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 "cloud_print/service/win/chrome_launcher.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 115 matching lines @@
   // Remove everything except kCloudPrintRoot.
   scoped_ptr<base::Value> cloud_print_root;
   dictionary->Remove(prefs::kCloudPrintRoot, &cloud_print_root);
   dictionary->Clear();
   dictionary->Set(prefs::kCloudPrintRoot, cloud_print_root.release());
 
   dictionary->SetBoolean(prefs::kCloudPrintXmppPingEnabled, true);
   if (!proxy_id.empty())  // Reuse proxy id if we already had one.
     dictionary->SetString(prefs::kCloudPrintProxyId, proxy_id);
   std::string result;
-  base::JSONWriter::WriteWithOptions(dictionary,
+  base::JSONWriter::WriteWithOptions(*dictionary,
                                      base::JSONWriter::OPTIONS_PRETTY_PRINT,
                                      &result);
   return result;
 }
 
 void DeleteAutorunKeys(const base::FilePath& user_data_dir) {
   base::win::RegKey key(HKEY_CURRENT_USER, kAutoRunKeyPath, KEY_SET_VALUE);
   if (!key.Valid())
     return;
   std::vector<base::string16> to_delete;
@@ skipping 122 matching lines @@
   if (chrome_path.empty()) {
     LOG(ERROR) << "Can't find Chrome.";
     return std::string();
   }
 
   base::FilePath printers_file = temp_user_data.path().Append(L"printers.json");
 
   base::ListValue printer_list;
   printer_list.AppendStrings(printers);
   std::string printers_json;
-  base::JSONWriter::Write(&printer_list, &printers_json);
+  base::JSONWriter::Write(printer_list, &printers_json);
   size_t written = base::WriteFile(printers_file,
                                    printers_json.c_str(),
                                    printers_json.size());
   if (written != printers_json.size()) {
     LOG(ERROR) << "Can't write file.";
     return std::string();
   }
 
   base::CommandLine cmd(chrome_path);
   CopyChromeSwitchesFromCurrentProcess(&cmd);
@@ skipping 31 matching lines @@
       LOG(ERROR) << "Chrome launch failed.";
       return std::string();
     }
     if (!json.empty()) {
       // Close chrome because Service State is ready.
       CloseChrome(chrome_process.Pass(), thread_id);
       return json;
     }
   }
 }