net: Cleanup class/struct forward declarations

net/http/http_stream_factory_impl_request.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_HTTP_HTTP_STREAM_FACTORY_IMPL_REQUEST_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_REQUEST_H_
 
 #include <memory>
 #include <set>
 
 #include "base/macros.h"
 #include "net/base/net_export.h"
 #include "net/http/http_stream_factory_impl.h"
 #include "net/log/net_log_with_source.h"
 #include "net/socket/connection_attempts.h"
 #include "net/socket/ssl_client_socket.h"
 #include "net/spdy/spdy_session_key.h"
 #include "url/gurl.h"
 
 namespace net {
 
 class BidirectionalStreamImpl;
-class ClientSocketHandle;
 class HttpStream;
-class SpdySession;
 
 class HttpStreamFactoryImpl::Request : public HttpStreamRequest {
  public:
   class NET_EXPORT_PRIVATE Helper {
    public:
     virtual ~Helper() {}
 
     // Returns the LoadState for Request.
     virtual LoadState GetLoadState() const = 0;
 
@@ skipping 112 matching lines @@
   bool using_spdy_;
   ConnectionAttempts connection_attempts_;
 
   const HttpStreamRequest::StreamType stream_type_;
   DISALLOW_COPY_AND_ASSIGN(Request);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_REQUEST_H_