Initial implementation of the ByteStream refactor.

content/browser/download/download_file_impl.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_FILE_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_
 #pragma once
 
 #include "content/browser/download/download_file.h"
 
 #include "base/memory/ref_counted.h"
 #include "content/browser/download/base_file.h"
+#include "content/browser/download/byte_stream.h"
 #include "content/browser/download/download_request_handle.h"
 
 struct DownloadCreateInfo;
 
 namespace content {
 class DownloadManager;
 }
 
 class CONTENT_EXPORT DownloadFileImpl : virtual public content::DownloadFile {
  public:
@@ skipping 21 matching lines @@
   virtual int64 CurrentSpeed() const OVERRIDE;
   virtual bool GetHash(std::string* hash) OVERRIDE;
   virtual std::string GetHashState() OVERRIDE;
   virtual void CancelDownloadRequest() OVERRIDE;
   virtual int Id() const OVERRIDE;
   virtual content::DownloadManager* GetDownloadManager() OVERRIDE;
   virtual const content::DownloadId& GlobalId() const OVERRIDE;
   virtual std::string DebugString() const OVERRIDE;
 
  private:
+  void PipeActive();

[ahendrickson, 2012/04/16 15:14:27]

I was not clear as to what this function does.  Needs a descriptive comment, and
perhaps a better name?

[Randy Smith (Not in Mondays), 2012/04/18 19:10:38]

Added comment; let me know if you still think I need to change the name.  It's
not part of the interface, so I'm not too too worried about it :-}.

+
   // The base file instance.
   BaseFile file_;
 
+  // The pipe through which data comes.
+  // TODO(rdsmith): Move this into BaseFile; requires using the same
+  // pipe semantics in SavePackage.
+  scoped_refptr<content::ByteStream> input_pipe_;
+
   // The unique identifier for this download, assigned at creation by
   // the DownloadFileManager for its internal record keeping.
   content::DownloadId id_;
 
   // The handle to the request information.  Used for operations outside the
   // download system, specifically canceling a download.
   scoped_ptr<DownloadRequestHandleInterface> request_handle_;
 
   // DownloadManager this download belongs to.
   scoped_refptr<content::DownloadManager> download_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadFileImpl);
 };
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_IMPL_H_