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diff --git a/chromium/content/browser/download/download_file_impl.h b/chromium/content/browser/download/download_file_impl.h
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+++ b/chromium/content/browser/download/download_file_impl.h
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+// 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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_
+#define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_
+
+#include "content/browser/download/download_file.h"
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
+#include "base/timer/timer.h"
+#include "content/browser/byte_stream.h"
+#include "content/browser/download/base_file.h"
+#include "content/browser/download/rate_estimator.h"
+#include "content/public/browser/download_save_info.h"
+#include "net/base/net_log.h"
+
+namespace content {
+class ByteStreamReader;
+class DownloadDestinationObserver;
+class DownloadManager;
+class PowerSaveBlocker;
+struct DownloadCreateInfo;
+
+class CONTENT_EXPORT DownloadFileImpl : virtual public DownloadFile {
+ public:
+  // Takes ownership of the object pointed to by |request_handle|.
+  // |bound_net_log| will be used for logging the download file's events.
+  // May be constructed on any thread.  All methods besides the constructor
+  // (including destruction) must occur on the FILE thread.
+  //
+  // Note that the DownloadFileImpl automatically reads from the passed in
+  // stream, and sends updates and status of those reads to the
+  // DownloadDestinationObserver.
+  DownloadFileImpl(
+    scoped_ptr<DownloadSaveInfo> save_info,
+    const base::FilePath& default_downloads_directory,
+    const GURL& url,
+    const GURL& referrer_url,
+    bool calculate_hash,
+    scoped_ptr<ByteStreamReader> stream,
+    const net::BoundNetLog& bound_net_log,
+    scoped_ptr<PowerSaveBlocker> power_save_blocker,
+    base::WeakPtr<DownloadDestinationObserver> observer);
+
+  virtual ~DownloadFileImpl();
+
+  // DownloadFile functions.
+  virtual void Initialize(const InitializeCallback& callback) OVERRIDE;
+  virtual void RenameAndUniquify(
+      const base::FilePath& full_path,
+      const RenameCompletionCallback& callback) OVERRIDE;
+  virtual void RenameAndAnnotate(
+      const base::FilePath& full_path,
+      const RenameCompletionCallback& callback) OVERRIDE;
+  virtual void Detach() OVERRIDE;
+  virtual void Cancel() OVERRIDE;
+  virtual base::FilePath FullPath() const OVERRIDE;
+  virtual bool InProgress() const OVERRIDE;
+  virtual int64 CurrentSpeed() const OVERRIDE;
+  virtual bool GetHash(std::string* hash) OVERRIDE;
+  virtual std::string GetHashState() OVERRIDE;
+  virtual void SetClientGuid(const std::string& guid) OVERRIDE;
+
+ protected:
+  // For test class overrides.
+  virtual DownloadInterruptReason AppendDataToFile(
+      const char* data, size_t data_len);
+
+ private:
+  // Send an update on our progress.
+  void SendUpdate();
+
+  // Called when there's some activity on stream_reader_ that needs to be
+  // handled.
+  void StreamActive();
+
+  // The base file instance.
+  BaseFile file_;
+
+  // The default directory for creating the download file.
+  base::FilePath default_download_directory_;
+
+  // The stream through which data comes.
+  // TODO(rdsmith): Move this into BaseFile; requires using the same
+  // stream semantics in SavePackage.  Alternatively, replace SaveFile
+  // with DownloadFile and get rid of BaseFile.
+  scoped_ptr<ByteStreamReader> stream_reader_;
+
+  // Used to trigger progress updates.
+  scoped_ptr<base::RepeatingTimer<DownloadFileImpl> > update_timer_;
+
+  // Statistics
+  size_t bytes_seen_;
+  base::TimeDelta disk_writes_time_;
+  base::TimeTicks download_start_;
+  RateEstimator rate_estimator_;
+
+  net::BoundNetLog bound_net_log_;
+
+  base::WeakPtr<DownloadDestinationObserver> observer_;
+
+  base::WeakPtrFactory<DownloadFileImpl> weak_factory_;
+
+  // RAII handle to keep the system from sleeping while we're downloading.
+  scoped_ptr<PowerSaveBlocker> power_save_blocker_;
+
+  DISALLOW_COPY_AND_ASSIGN(DownloadFileImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_