Move webkit/blob to new locations.

webkit/blob/blob_url_request_job.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 WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_H_
-#define WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_H_
-
-#include <map>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/platform_file.h"
-#include "net/http/http_byte_range.h"
-#include "net/url_request/url_request_job.h"
-#include "webkit/blob/blob_data.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace base {
-class MessageLoopProxy;
-struct PlatformFileInfo;
-}
-
-namespace fileapi {
-class FileSystemContext;
-}
-
-namespace net {
-class DrainableIOBuffer;
-class IOBuffer;
-}
-
-namespace webkit_blob {
-
-class FileStreamReader;
-
-// A request job that handles reading blob URLs.
-class WEBKIT_STORAGE_EXPORT BlobURLRequestJob : public net::URLRequestJob {
- public:
-  BlobURLRequestJob(net::URLRequest* request,
-                    net::NetworkDelegate* network_delegate,
-                    BlobData* blob_data,
-                    fileapi::FileSystemContext* file_system_context,
-                    base::MessageLoopProxy* resolving_message_loop_proxy);
-
-  // net::URLRequestJob methods.
-  virtual void Start() OVERRIDE;
-  virtual void Kill() OVERRIDE;
-  virtual bool ReadRawData(net::IOBuffer* buf,
-                           int buf_size,
-                           int* bytes_read) OVERRIDE;
-  virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
-  virtual void GetResponseInfo(net::HttpResponseInfo* info) OVERRIDE;
-  virtual int GetResponseCode() const OVERRIDE;
-  virtual void SetExtraRequestHeaders(
-      const net::HttpRequestHeaders& headers) OVERRIDE;
-
- protected:
-  virtual ~BlobURLRequestJob();
-
- private:
-  typedef std::map<size_t, FileStreamReader*> IndexToReaderMap;
-
-  // For preparing for read: get the size, apply the range and perform seek.
-  void DidStart();
-  bool AddItemLength(size_t index, int64 item_length);
-  void CountSize();
-  void DidCountSize(int error);
-  void DidGetFileItemLength(size_t index, int64 result);
-  void Seek(int64 offset);
-
-  // For reading the blob.
-  bool ReadLoop(int* bytes_read);
-  bool ReadItem();
-  void AdvanceItem();
-  void AdvanceBytesRead(int result);
-  bool ReadBytesItem(const BlobData::Item& item, int bytes_to_read);
-  bool ReadFileItem(FileStreamReader* reader, int bytes_to_read);
-
-  void DidReadFile(int result);
-  void DeleteCurrentFileReader();
-
-  int ComputeBytesToRead() const;
-  int BytesReadCompleted();
-
-  void NotifySuccess();
-  void NotifyFailure(int);
-  void HeadersCompleted(int status_code, const std::string& status_txt);
-
-  // Returns a FileStreamReader for a blob item at |index|.
-  // If the item at |index| is not of file this returns NULL.
-  FileStreamReader* GetFileStreamReader(size_t index);
-
-  // Creates a FileStreamReader for the item at |index| with additional_offset.
-  void CreateFileStreamReader(size_t index, int64 additional_offset);
-
-  base::WeakPtrFactory<BlobURLRequestJob> weak_factory_;
-  scoped_refptr<BlobData> blob_data_;
-  scoped_refptr<fileapi::FileSystemContext> file_system_context_;
-  scoped_refptr<base::MessageLoopProxy> file_thread_proxy_;
-  std::vector<int64> item_length_list_;
-  int64 total_size_;
-  int64 remaining_bytes_;
-  int pending_get_file_info_count_;
-  IndexToReaderMap index_to_reader_;
-  size_t current_item_index_;
-  int64 current_item_offset_;
-  scoped_refptr<net::DrainableIOBuffer> read_buf_;
-  bool error_;
-  bool headers_set_;
-  bool byte_range_set_;
-  net::HttpByteRange byte_range_;
-  scoped_ptr<net::HttpResponseInfo> response_info_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlobURLRequestJob);
-};
-
-}  // namespace webkit_blob
-
-#endif  // WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_H_