content/browser/loader/upload_data_stream_builder.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_LOADER_UPLOAD_DATA_STREAM_BUILDER_H_
   6 #define CONTENT_BROWSER_LOADER_UPLOAD_DATA_STREAM_BUILDER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/common/content_export.h"
  10
  11 namespace base {
  12 class TaskRunner;
  13 }
  14
  15 namespace storage {
  16 class FileSystemContext;
  17 }
  18
  19 namespace net {
  20 class UploadDataStream;
  21 }
  22
  23 namespace storage {
  24 class BlobStorageContext;
  25 }
  26
  27 namespace content {
  28
  29 class ResourceRequestBody;
  30
  31 class CONTENT_EXPORT UploadDataStreamBuilder {
  32  public:
  33   // Creates a new UploadDataStream from this request body.
  34   //
  35   // If |body| contains any blob references, the caller is responsible for
  36   // making sure them outlive the returned value of UploadDataStream. We do this
  37   // by binding the BlobDataHandles of them to ResourceRequestBody in
  38   // ResourceDispatcherHostImpl::BeginRequest().
  39   //
  40   // |file_system_context| is used to create a FileStreamReader for files with
  41   // filesystem URLs.  |file_task_runner| is used to perform file operations
  42   // when the data gets uploaded.
  43   static scoped_ptr<net::UploadDataStream> Build(
  44       ResourceRequestBody* body,
  45       storage::BlobStorageContext* blob_context,
  46       storage::FileSystemContext* file_system_context,
  47       base::TaskRunner* file_task_runner);
  48 };
  49
  50 }  // namespace content
  51
  52 #endif  // CONTENT_BROWSER_LOADER_UPLOAD_DATA_STREAM_BUILDER_H_