net: Cleanup class/struct forward declarations

net/url_request/sdch_dictionary_fetcher.h

 // Copyright 2014 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.
 
 // TODO(rdsmith): This class needs to delegate URLRequest::Delegate methods
 // to the net/ embedder for correct implementation of authentication.
 // Specifically, this class needs the embedder to provide functionality
 // corresponding to
 // URLRequest::Delegate::{OnAuthRequired,OnCertificateRequested}.
 
 #ifndef NET_URL_REQUEST_SDCH_DICTIONARY_FETCHER_H_
 #define NET_URL_REQUEST_SDCH_DICTIONARY_FETCHER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/net_export.h"
 #include "net/base/sdch_manager.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
 namespace net {
 
 class NetLogWithSource;
 class URLRequest;
-class URLRequestThrottlerEntryInterface;
 
 // This class is used by embedder SDCH policy object to fetch
 // dictionaries. It queues requests for dictionaries and dispatches
 // them serially, implementing the URLRequest::Delegate interface to
 // handle callbacks (but see above TODO). It tracks all requests, only
 // attempting to fetch each dictionary once.
 class NET_EXPORT SdchDictionaryFetcher : public URLRequest::Delegate,
                                          public base::NonThreadSafe {
  public:
   typedef base::Callback<void(const std::string& dictionary_text,
@@ skipping 80 matching lines @@
   // Store the URLRequestContext associated with the owning SdchManager for
   // use while fetching.
   URLRequestContext* const context_;
 
   DISALLOW_COPY_AND_ASSIGN(SdchDictionaryFetcher);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_SDCH_DICTIONARY_FETCHER_H_