Fix the Unthrottled download count for parallel download

content/browser/download/download_request_core.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_REQUEST_CORE_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_REQUEST_CORE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 34 matching lines @@
   class Delegate {
    public:
     virtual void OnReadyToRead() = 0;
     virtual void OnStart(
         std::unique_ptr<DownloadCreateInfo> download_create_info,
         std::unique_ptr<ByteStreamReader> stream_reader,
         const DownloadUrlParameters::OnStartedCallback& callback) = 0;
   };
 
   // All parameters are required. |request| and |delegate| must outlive
-  // DownloadRequestCore.
-  DownloadRequestCore(net::URLRequest* request, Delegate* delegate);
+  // DownloadRequestCore. The request is not the main request if
+  // |is_parallel_request| is true.
+  DownloadRequestCore(net::URLRequest* request,
+                      Delegate* delegate,
+                      bool is_parallel_request);
   ~DownloadRequestCore();
 
   // Should be called when the URLRequest::Delegate receives OnResponseStarted.
   // Invokes Delegate::OnStart() with download start parameters. The
   // |override_mime_type| is used as the MIME type for the download when
   // constructing a DownloadCreateInfo object.
   bool OnResponseStarted(const std::string& override_mime_type);
 
   // Should be called to handle a redirect. The caller should only allow the
   // redirect to be followed if the return value is true.
@@ skipping 101 matching lines @@
 
   // Each successful OnWillRead will yield a buffer of this size.
   static const int kReadBufSize = 32768;   // bytes
 
   DISALLOW_COPY_AND_ASSIGN(DownloadRequestCore);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_REQUEST_CORE_H_