Changing CloudPrintURLFetcher instantiation to be more testable

chrome/service/cloud_print/cloud_print_auth.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/service/cloud_print/cloud_print_auth.h"
 
 #include "base/bind.h"
 #include "base/string_util.h"
 #include "chrome/common/cloud_print/cloud_print_constants.h"
 #include "chrome/common/cloud_print/cloud_print_helpers.h"
@@ skipping 52 matching lines @@
 void CloudPrintAuth::AuthenticateWithToken(
     const std::string& cloud_print_token) {
   VLOG(1) << "CP_AUTH: Authenticating with token";
 
   client_login_token_ = cloud_print_token;
 
   // We need to get the credentials of the robot here.
   GURL get_authcode_url = GetUrlForGetAuthCode(cloud_print_server_url_,
                                                oauth_client_info_.client_id,
                                                proxy_id_);
-  request_ = new CloudPrintURLFetcher;
+  request_ = CloudPrintURLFetcher::Create();
   request_->StartGetRequest(get_authcode_url,
                             this,
                             kCloudPrintAuthMaxRetryCount,
                             std::string());
 }
 
 void CloudPrintAuth::AuthenticateWithRobotToken(
     const std::string& robot_oauth_refresh_token,
     const std::string& robot_email) {
   VLOG(1) << "CP_AUTH: Authenticating with robot token";
@@ skipping 108 matching lines @@
   DCHECK(!client_login_token_.empty());
   std::string header;
   header = "Authorization: GoogleLogin auth=";
   header += client_login_token_;
   return header;
 }
 
 CloudPrintAuth::~CloudPrintAuth() {}
 
 }  // namespace cloud_print