Range request support for parallel download in DownloadRequestCore.

content/public/browser/download_save_info.cc

 // 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.
 
 #include "content/public/browser/download_save_info.h"
 
 namespace content {
 
+// static
+const int64_t DownloadSaveInfo::kLengthFullContent = 0;
+
 DownloadSaveInfo::DownloadSaveInfo()
-    : offset(0), prompt_for_save_location(false) {
-}
+    : offset(0), length(kLengthFullContent), prompt_for_save_location(false) {}
 
 DownloadSaveInfo::~DownloadSaveInfo() {
 }
 
 DownloadSaveInfo::DownloadSaveInfo(DownloadSaveInfo&& that)
     : file_path(std::move(that.file_path)),
       suggested_name(std::move(that.suggested_name)),
       file(std::move(that.file)),
       offset(that.offset),
+      length(that.length),
       hash_state(std::move(that.hash_state)),
       hash_of_partial_file(std::move(that.hash_of_partial_file)),
       prompt_for_save_location(that.prompt_for_save_location) {}
 
 }  // namespace content