net: Cleanup class/struct forward declarations

net/url_request/url_request_job.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_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_JOB_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 13 matching lines @@
 #include "net/socket/connection_attempts.h"
 #include "net/url_request/redirect_info.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
 namespace net {
 
 class AuthChallengeInfo;
 class AuthCredentials;
 class CookieOptions;
-class Filter;
 class HttpRequestHeaders;
 class HttpResponseInfo;
 class IOBuffer;
 struct LoadTimingInfo;
 class NetworkDelegate;
 class ProxyServer;
 class SSLCertRequestInfo;
 class SSLInfo;
 class SSLPrivateKey;
 class UploadDataStream;
@@ skipping 390 matching lines @@
   CompletionCallback read_raw_callback_;
 
   base::WeakPtrFactory<URLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_JOB_H_