src/components/component_updater/url_fetcher_downloader.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_
   6 #define COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_
   7
   8 #include <stdint.h>
   9
  10 #include "base/macros.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/threading/thread_checker.h"
  14 #include "base/time/time.h"
  15 #include "components/component_updater/crx_downloader.h"
  16 #include "net/url_request/url_fetcher_delegate.h"
  17
  18 namespace net {
  19 class URLFetcher;
  20 class URLRequestContextGetter;
  21 }
  22
  23 namespace component_updater {
  24
  25 // Implements a CRX downloader in top of the URLFetcher.
  26 class UrlFetcherDownloader : public CrxDownloader,
  27                              public net::URLFetcherDelegate {
  28  protected:
  29   friend class CrxDownloader;
  30   UrlFetcherDownloader(scoped_ptr<CrxDownloader> successor,
  31                        net::URLRequestContextGetter* context_getter,
  32                        scoped_refptr<base::SequencedTaskRunner> task_runner);
  33   virtual ~UrlFetcherDownloader();
  34
  35  private:
  36   // Overrides for CrxDownloader.
  37   virtual void DoStartDownload(const GURL& url) OVERRIDE;
  38
  39   // Overrides for URLFetcherDelegate.
  40   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
  41   virtual void OnURLFetchDownloadProgress(const net::URLFetcher* source,
  42                                           int64_t current,
  43                                           int64_t total) OVERRIDE;
  44   scoped_ptr<net::URLFetcher> url_fetcher_;
  45   net::URLRequestContextGetter* context_getter_;
  46   scoped_refptr<base::SequencedTaskRunner> task_runner_;
  47
  48   base::Time download_start_time_;
  49
  50   int64_t downloaded_bytes_;
  51   int64_t total_bytes_;
  52
  53   base::ThreadChecker thread_checker_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(UrlFetcherDownloader);
  56 };
  57
  58 }  // namespace component_updater
  59
  60 #endif  // COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_