Deletable file references.

chrome/browser/renderer_host/redirect_to_file_resource_handler.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_REDIRECT_TO_FILE_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_REDIRECT_TO_FILE_RESOURCE_HANDLER_H_
 
 #include "base/file_path.h"
 #include "base/platform_file.h"
 #include "base/ref_counted.h"
 #include "base/scoped_callback_factory.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/renderer_host/resource_handler.h"
 #include "net/base/completion_callback.h"
 
 class RefCountedPlatformFile;
 class ResourceDispatcherHost;
 
 namespace net {
 class FileStream;
 class GrowableIOBuffer;
 }
 
+namespace webkit_blob {
+class DeletableFileReference;
+}
+
 // Redirects network data to a file.  This is intended to be layered in front
 // of either the AsyncResourceHandler or the SyncResourceHandler.
 class RedirectToFileResourceHandler : public ResourceHandler {
  public:
   RedirectToFileResourceHandler(
       ResourceHandler* next_handler,
       int process_id,
       ResourceDispatcherHost* resource_dispatcher_host);
 
   // ResourceHandler implementation:
@@ skipping 30 matching lines @@
   // network (buf_write_pending_ is true while the system is copying data into
   // buf_), and then write this buffer out to disk (write_callback_pending_ is
   // true while writing to disk).  Reading from the network is suspended while
   // the buffer is full (BufIsFull returns true).  The write_cursor_ member
   // tracks the offset into buf_ that we are writing to disk.
 
   scoped_refptr<net::GrowableIOBuffer> buf_;
   bool buf_write_pending_;
   int write_cursor_;
 
-  FilePath file_path_;
   scoped_ptr<net::FileStream> file_stream_;
   net::CompletionCallbackImpl<RedirectToFileResourceHandler> write_callback_;
   bool write_callback_pending_;
 
+  // We create a DeletableFileReference for the temp file created as
+  // a result of the download.
+  scoped_refptr<webkit_blob::DeletableFileReference> deletable_file_;
+
   DISALLOW_COPY_AND_ASSIGN(RedirectToFileResourceHandler);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_REDIRECT_TO_FILE_RESOURCE_HANDLER_H_