Make ByteStream independent from DownloadInterruptReason

content/public/browser/download_manager.h

 // 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.
 //
 // The DownloadManager object manages the process of downloading, including
 // updates to the history system and providing the information for displaying
 // the downloads view in the Destinations tab. There is one DownloadManager per
 // active browser context in Chrome.
 //
 // Download observers:
@@ skipping 29 matching lines @@
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 
 class GURL;
 
 namespace content {
 
 class BrowserContext;
+template <typename StatusType>
 class ByteStreamReader;
 class DownloadManagerDelegate;
 class DownloadQuery;
 class DownloadRequestHandle;
 struct DownloadCreateInfo;
 struct DownloadRetrieveInfo;
 
 // Browser's download manager: manages all downloads and destination view.
 class CONTENT_EXPORT DownloadManager : public base::SupportsUserData::Data {
  public:
@@ skipping 41 matching lines @@
   // Add all download items to |downloads|, no matter the type or state, without
   // clearing |downloads| first.
   virtual void GetAllDownloads(DownloadVector* downloads) = 0;
 
   // Called by a download source (Currently DownloadResourceHandler)
   // to initiate the non-source portions of a download.
   // Returns the id assigned to the download.  If the DownloadCreateInfo
   // specifies an id, that id will be used.
   virtual void StartDownload(
       scoped_ptr<DownloadCreateInfo> info,
-      scoped_ptr<ByteStreamReader> stream,
+      scoped_ptr<ByteStreamReader<DownloadInterruptReason> > stream,
       const DownloadUrlParameters::OnStartedCallback& on_started) = 0;
 
   // Remove downloads after remove_begin (inclusive) and before remove_end
   // (exclusive). You may pass in null Time values to do an unbounded delete
   // in either direction.
   virtual int RemoveDownloadsBetween(base::Time remove_begin,
                                      base::Time remove_end) = 0;
 
   // Remove downloads will delete all downloads that have a timestamp that is
   // the same or more recent than |remove_begin|. The number of downloads
@@ skipping 43 matching lines @@
   virtual void CheckForHistoryFilesRemoval() = 0;
 
   // Get the download item for |id| if present, no matter what type of download
   // it is or state it's in.
   virtual DownloadItem* GetDownload(uint32 id) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_H_