Move the core download files to content.

chrome/browser/download/download_status_updater_delegate.h

-// Copyright (c) 2010 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 CHROME_BROWSER_DOWNLOAD_DOWNLOAD_STATUS_UPDATER_DELEGATE_H_
-#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_STATUS_UPDATER_DELEGATE_H_
-
-#include "base/basictypes.h"
-
-class DownloadStatusUpdaterDelegate {
- public:
-  // Returns true if the progress is known (i.e. we know the final size
-  // of all downloads).
-  virtual bool IsDownloadProgressKnown() = 0;
-
-  // Returns the number of downloads that are in progress.
-  virtual int64 GetInProgressDownloadCount() = 0;
-
-  // Returns the amount of received data, in bytes.
-  virtual int64 GetReceivedDownloadBytes() = 0;
-
-  // Returns the final size of all downloads, in bytes.
-  virtual int64 GetTotalDownloadBytes() = 0;
-
- protected:
-  virtual ~DownloadStatusUpdaterDelegate() {}
-};
-
-#endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_STATUS_UPDATER_DELEGATE_H_