Parallel Download finch config parameters on Chrome client.

content/browser/download/parallel_download_job.h

 // Copyright 2017 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_PARALLEL_DOWNLOAD_JOB_H_
 #define CONTENT_BROWSER_DOWNLOAD_PARALLEL_DOWNLOAD_JOB_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 23 matching lines @@
 
  private:
   friend class ParallelDownloadJobTest;
 
   typedef std::vector<std::unique_ptr<DownloadWorker>> WorkerList;
 
   // Build multiple http requests for a new download,
   // the rest of the bytes starting from |bytes_received| will be equally
   // distributed to each connection, including the original connection.
   // the last connection may take additional bytes.
-  void ForkRequestsForNewDownload(int64_t bytes_received, int64_t total_bytes);
+  void ForkRequestsForNewDownload(int64_t bytes_received,
+                                  int64_t total_bytes,
+                                  int request_count);
 
   // Build parallel requests to download the remaining slices.
   // TODO(qinmin): remove ForkRequestsForNewDownload() and move the logic into
   // this function.
   void BuildParallelRequests();
 
   // Create one range request, virtual for testing.
   virtual void CreateRequest(int64_t offset, int64_t length);
 
-  // Number of concurrent requests for a new download, include the original
-  // request.
-  int request_num_;
-
   // Information about the initial request when download is started.
   int64_t initial_request_offset_;
   int64_t initial_request_length_;
 
   // Subsequent tasks to send range requests.
   WorkerList workers_;
 
   DISALLOW_COPY_AND_ASSIGN(ParallelDownloadJob);
 };
 
 }  //  namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_PARALLEL_DOWNLOAD_JOB_H_