Pass slice info to DownloadFileImpl

content/browser/download/download_file_impl.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.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_
 
 #include "content/browser/download/download_file.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <unordered_map>
+#include <vector>
 
 #include "base/files/file.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.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_item.h"
 #include "content/public/browser/download_save_info.h"
 #include "net/log/net_log_with_source.h"
 
 namespace content {
 class ByteStreamReader;
 class DownloadDestinationObserver;
 
 class CONTENT_EXPORT DownloadFileImpl : public DownloadFile {
  public:
   // Takes ownership of the object pointed to by |request_handle|.
   // |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(std::unique_ptr<DownloadSaveInfo> save_info,
-                   const base::FilePath& default_downloads_directory,
-                   std::unique_ptr<ByteStreamReader> stream_reader,
-                   const net::NetLogWithSource& net_log,
-                   bool is_sparse_file,
-                   base::WeakPtr<DownloadDestinationObserver> observer);
+  DownloadFileImpl(
+      std::unique_ptr<DownloadSaveInfo> save_info,
+      const base::FilePath& default_downloads_directory,
+      std::unique_ptr<ByteStreamReader> stream_reader,
+      const std::vector<DownloadItem::ReceivedSlice>& received_slices,
+      const net::NetLogWithSource& net_log,
+      bool is_sparse_file,
+      base::WeakPtr<DownloadDestinationObserver> observer);
 
   ~DownloadFileImpl() override;
 
   // DownloadFile functions.
   void Initialize(const InitializeCallback& callback) override;
 
   void AddByteStream(std::unique_ptr<ByteStreamReader> stream_reader,
                      int64_t offset) override;
 
   void RenameAndUniquify(const base::FilePath& full_path,
@@ skipping 153 matching lines @@
   // The file may contain null bytes(holes) in between of valid data slices.
   // TODO(xingliu): Pass a slice info vector to determine if the file is sparse.
   bool is_sparse_file_;
 
   // Statistics
   size_t bytes_seen_;
   base::TimeDelta disk_writes_time_;
   base::TimeTicks download_start_;
   RateEstimator rate_estimator_;
 
+  std::vector<DownloadItem::ReceivedSlice> received_slices_;
+
   base::WeakPtr<DownloadDestinationObserver> observer_;
   base::WeakPtrFactory<DownloadFileImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadFileImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_