net: Cleanup class/struct forward declarations

net/url_request/url_request_context_builder.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.
 
 // This class is useful for building a simple URLRequestContext. Most creators
 // of new URLRequestContexts should use this helper class to construct it. Call
 // any configuration params, and when done, invoke Build() to construct the
 // URLRequestContext. This URLRequestContext will own all its own storage.
 //
 // URLRequestContextBuilder and its associated params classes are initially
@@ skipping 31 matching lines @@
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace net {
 
 class CertVerifier;
 class ChannelIDService;
 class CookieStore;
 class CTVerifier;
-class FtpTransactionFactory;
 class HostMappingRules;
 class HttpAuthHandlerFactory;
 class HttpServerProperties;
 class ProxyConfigService;
 class SocketPerformanceWatcherFactory;
 class URLRequestContext;
 class URLRequestInterceptor;
 
 class NET_EXPORT URLRequestContextBuilder {
  public:
@@ skipping 305 matching lines @@
   // Not owned by the context builder. Once it is set to a non-null value, it
   // is guaranteed to be non-null during the lifetime of |this|.
   SocketPerformanceWatcherFactory* socket_performance_watcher_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_