Add initial Controller to DownloadService

components/download/internal/entry.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 COMPONENTS_DOWNLOAD_INTERNAL_ENTRY_H_
 #define COMPONENTS_DOWNLOAD_INTERNAL_ENTRY_H_
 
 #include "components/download/public/client.h"
 #include "components/download/public/clients.h"
 #include "components/download/public/download_params.h"
@@ skipping 25 matching lines @@
     // failed, could have succeeded, etc.).  It is ready to have UMA logs saved.
     COMPLETE = 4,
 
     // The download is finished.  We are leaving this entry around to make sure
     // the files on disk are cleaned up.
     WATCHDOG = 5,
   };
 
   Entry();
   Entry(const Entry& other);
+  explicit Entry(const DownloadParams& params);
   ~Entry();
 
   // The feature that is requesting this download.
   DownloadClient client = DownloadClient::INVALID;
 
   // A unique GUID that represents this download.  See | base::GenerateGUID()|.
   std::string guid;
 
   // The parameters that determine under what device conditions this download
   // will occur.
   SchedulingParams scheduling_params;
 
   // The parameters that define the actual download request to make.
   RequestParams request_params;
 
   // The state of the download to help the scheduler and loggers make the right
   // decisions about the download object.
   State state = State::NEW;
 };
 
 }  // namespace download
 
 #endif  // COMPONENTS_DOWNLOAD_INTERNAL_ENTRY_H_