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      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 fileapi {
     16 class FileSystemContext;
     17 }
     18 
     19 namespace net {
     20 class UploadDataStream;
     21 }
     22 
     23 namespace webkit_blob {
     24 class BlobStorageController;
     25 }
     26 
     27 namespace webkit_glue {
     28 class ResourceRequestBody;
     29 }
     30 
     31 namespace content {
     32 
     33 class CONTENT_EXPORT UploadDataStreamBuilder {
     34  public:
     35   // Creates a new UploadDataStream from this request body.
     36   //
     37   // This also resolves any blob references using the given |blob_controller|
     38   // and binds those blob references to the ResourceRequestBody ensuring that
     39   // the blob data remains valid for the lifetime of the ResourceRequestBody
     40   // object.
     41   //
     42   // |file_system_context| is used to create a FileStreamReader for files with
     43   // filesystem URLs.  |file_task_runner| is used to perform file operations
     44   // when the data gets uploaded.
     45   static scoped_ptr<net::UploadDataStream> Build(
     46       webkit_glue::ResourceRequestBody* body,
     47       webkit_blob::BlobStorageController* blob_controller,
     48       fileapi::FileSystemContext* file_system_context,
     49       base::TaskRunner* file_task_runner);
     50 };
     51 
     52 }  // namespace content
     53 
     54 #endif  // CONTENT_BROWSER_LOADER_UPLOAD_DATA_STREAM_BUILDER_H_
     55