Clean up FtpTransactionFacory ownership.

net/url_request/url_request_context_builder.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 "net/url_request/url_request_context_builder.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 487 matching lines @@
 #if !defined(DISABLE_FILE_SUPPORT)
   if (file_enabled_) {
     job_factory->SetProtocolHandler(
         "file",
         base::MakeUnique<FileProtocolHandler>(context->GetFileTaskRunner()));
   }
 #endif  // !defined(DISABLE_FILE_SUPPORT)
 
 #if !defined(DISABLE_FTP_SUPPORT)
   if (ftp_enabled_) {
-    ftp_transaction_factory_.reset(
-        new FtpNetworkLayer(context->host_resolver()));
-    job_factory->SetProtocolHandler("ftp", base::MakeUnique<FtpProtocolHandler>(
-                                               ftp_transaction_factory_.get()));
+    job_factory->SetProtocolHandler(
+        "ftp", FtpProtocolHandler::Create(context->host_resolver()));
   }
 #endif  // !defined(DISABLE_FTP_SUPPORT)
 
   std::unique_ptr<net::URLRequestJobFactory> top_job_factory(job_factory);
   if (!url_request_interceptors_.empty()) {
     // Set up interceptors in the reverse order.
 
     for (auto i = url_request_interceptors_.rbegin();
          i != url_request_interceptors_.rend(); ++i) {
       top_job_factory.reset(new net::URLRequestInterceptingJobFactory(
           std::move(top_job_factory), std::move(*i)));
     }
     url_request_interceptors_.clear();
   }
   storage->set_job_factory(std::move(top_job_factory));
   // TODO(willchan): Support sdch.
 
   return std::move(context);
 }
 
 }  // namespace net