Adding WebContent-free Download

content/browser/download/download_resource_handler.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_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 63 matching lines @@
   void OnDataDownloaded(int bytes_downloaded) override;
 
   void PauseRequest();
   void ResumeRequest();
 
   // May result in this object being deleted by its owner.
   void CancelRequest();
 
   std::string DebugString() const;
 
+  void set_parent_download_manager(DownloadManager* download_manager) {

[asanka, 2015/11/20 19:57:46]

Let's call this download_manager. The 'parent' relationship already sort-of
exists between an off-the-record profile and its parent profile and their
respective download managers.

[svaldez, 2015/11/23 15:18:56]

Done.

+    parent_download_manager_ = download_manager;
+  }
+
  private:
   ~DownloadResourceHandler() override;
 
   // Arrange for started_cb_ to be called on the UI thread with the
   // below values, nulling out started_cb_.  Should only be called
   // on the IO thread.
   void CallStartedCB(DownloadItem* item,
                      DownloadInterruptReason interrupt_reason);
 
   uint32 download_id_;
@@ skipping 26 matching lines @@
   base::TimeDelta total_pause_time_;
   size_t last_buffer_size_;
   int64 bytes_read_;
 
   int pause_count_;
   bool was_deferred_;
 
   // For DCHECKing
   bool on_response_started_called_;
 
+  // DownloadManager passed in by the owner of DownloadResourceHandler for cases
+  // where WebContents is not available.
+  DownloadManager* parent_download_manager_;
+
   static const int kReadBufSize = 32768;  // bytes
   static const int kThrottleTimeMs = 200;  // milliseconds
 
   DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_