net: Cleanup class/struct forward declarations

net/url_request/url_request_context_storage.h

 // 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.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_STORAGE_H_
 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_STORAGE_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 class CertVerifier;
 class ChannelIDService;
 class CookieStore;
 class CTPolicyEnforcer;
 class CTVerifier;
-class FtpTransactionFactory;
 class HostResolver;
 class HttpAuthHandlerFactory;
 class HttpNetworkSession;
 class HttpServerProperties;
 class HttpTransactionFactory;
 class HttpUserAgentSettings;
 class NetLog;
 class NetworkDelegate;
 class ProxyDelegate;
 class ProxyService;
@@ skipping 85 matching lines @@
   std::unique_ptr<URLRequestJobFactory> job_factory_;
   std::unique_ptr<URLRequestThrottlerManager> throttler_manager_;
   std::unique_ptr<SdchManager> sdch_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextStorage);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_STORAGE_H_