Remove //net (except for Android test stuff) and sdch

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 <queue>
-#include <set>
-#include <string>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/non_thread_safe.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 BoundNetLog;
-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,
-                              const GURL& dictionary_url,
-                              const BoundNetLog& net_log)>
-      OnDictionaryFetchedCallback;
-
-  // The consumer must guarantee that |*context| outlives this object.
-  // |callback| will be called on successful dictionary fetch
-  // requested through Schedule().  |callback| will not be called
-  // after object destruction.
-  SdchDictionaryFetcher(URLRequestContext* context,
-                        const OnDictionaryFetchedCallback& callback);
-  ~SdchDictionaryFetcher() override;
-
-  // Request a new dictionary fetch.
-  void Schedule(const GURL& dictionary_url);
-
-  // Cancel any in-progress requests.
-  void Cancel();
-
-  // Implementation of URLRequest::Delegate methods.
-  void OnResponseStarted(URLRequest* request) override;
-  void OnReadCompleted(URLRequest* request, int bytes_read) override;
-
- private:
-  enum State {
-    STATE_NONE,
-    STATE_SEND_REQUEST,
-    STATE_SEND_REQUEST_COMPLETE,
-    STATE_READ_BODY,
-    STATE_READ_BODY_COMPLETE,
-    STATE_REQUEST_COMPLETE,
-  };
-
-  // State machine implementation.
-  int DoLoop(int rv);
-  int DoSendRequest(int rv);
-  int DoSendRequestComplete(int rv);
-  int DoReadBody(int rv);
-  int DoReadBodyComplete(int rv);
-  int DoCompleteRequest(int rv);
-
-  State next_state_;
-  bool in_loop_;
-
-  // A queue of URLs that are being used to download dictionaries.
-  std::queue<GURL> fetch_queue_;
-
-  // The request and buffer used for getting the current dictionary
-  // Both are null when a fetch is not in progress.
-  scoped_ptr<URLRequest> current_request_;
-  scoped_refptr<IOBuffer> buffer_;
-
-  // The currently accumulating dictionary.
-  std::string dictionary_;
-
-  // Althought the SDCH spec does not preclude a server from using a single URL
-  // to load several distinct dictionaries (by telling a client to load a
-  // dictionary from an URL several times), current implementations seem to have
-  // that 1-1 relationship (i.e., each URL points at a single dictionary, and
-  // the dictionary content does not change over time, and hence is not worth
-  // trying to load more than once). In addition, some dictionaries prove
-  // unloadable only after downloading them (because they are too large?  ...or
-  // malformed?). As a protective element, Chromium will *only* load a
-  // dictionary at most once from a given URL (so that it doesn't waste
-  // bandwidth trying repeatedly).
-  // The following set lists all the dictionary URLs that we've tried to load,
-  // so that we won't try to load from an URL more than once.
-  // TODO(jar): Try to augment the SDCH proposal to include this restiction.
-  std::set<GURL> attempted_load_;
-
-  // Store the URLRequestContext associated with the owning SdchManager for
-  // use while fetching.
-  URLRequestContext* const context_;
-
-  const OnDictionaryFetchedCallback dictionary_fetched_callback_;
-
-  base::WeakPtrFactory<SdchDictionaryFetcher> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(SdchDictionaryFetcher);
-};
-
-}  // namespace net
-
-#endif  // NET_URL_REQUEST_SDCH_DICTIONARY_FETCHER_H_