Cleanup: Remove unneeded forward declararations in net.

net/http/http_network_transaction.h

 // Copyright (c) 2011 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_HTTP_HTTP_NETWORK_TRANSACTION_H_
 #define NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 #pragma once
 
 #include <string>
 
@@ skipping 12 matching lines @@
 #include "net/http/http_transaction.h"
 #include "net/proxy/proxy_service.h"
 
 namespace net {
 
 class HttpAuthController;
 class HttpNetworkSession;
 class HttpStream;
 class HttpStreamRequest;
 class IOBuffer;
+class UploadDataStream;
 struct HttpRequestInfo;
 
 class NET_EXPORT_PRIVATE HttpNetworkTransaction
     : public HttpTransaction,
       public HttpStreamRequest::Delegate {
  public:
   explicit HttpNetworkTransaction(HttpNetworkSession* session);
 
   virtual ~HttpNetworkTransaction();
 
@@ skipping 227 matching lines @@
   // True when the tunnel is in the process of being established - we can't
   // read from the socket until the tunnel is done.
   bool establishing_tunnel_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpNetworkTransaction);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_TRANSACTION_H_