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
11namespace base {
12class TaskRunner;
13}
14
15namespace storage {
16class FileSystemContext;
17}
18
19namespace net {
20class UploadDataStream;
21}
22
23namespace storage {
24class BlobStorageContext;
25}
26
27namespace content {
28
29class ResourceRequestBody;
30
31class 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_
53