Move browser-specific FileAPI code from webkit/fileapi to webkit/browser/fileapi

webkit/fileapi/upload_file_system_file_element_reader.h

-// Copyright (c) 2013 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_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
-#define WEBKIT_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
-
-#include "base/memory/weak_ptr.h"
-#include "base/time.h"
-#include "googleurl/src/gurl.h"
-#include "net/base/upload_element_reader.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace webkit_blob {
-class FileStreamReader;
-}
-
-namespace fileapi {
-
-class FileSystemContext;
-
-// An UploadElementReader implementation for filesystem file.
-class WEBKIT_STORAGE_EXPORT UploadFileSystemFileElementReader
-    : public net::UploadElementReader {
- public:
-  UploadFileSystemFileElementReader(
-      FileSystemContext* file_system_context,
-      const GURL& url,
-      uint64 range_offset,
-      uint64 range_length,
-      const base::Time& expected_modification_time);
-  virtual ~UploadFileSystemFileElementReader();
-
-  // UploadElementReader overrides:
-  virtual int Init(const net::CompletionCallback& callback) OVERRIDE;
-  virtual uint64 GetContentLength() const OVERRIDE;
-  virtual uint64 BytesRemaining() const OVERRIDE;
-  virtual int Read(net::IOBuffer* buf,
-                   int buf_length,
-                   const net::CompletionCallback& callback) OVERRIDE;
-
- private:
-  void OnGetLength(const net::CompletionCallback& callback, int64 result);
-  void OnRead(const net::CompletionCallback& callback, int result);
-
-  scoped_refptr<FileSystemContext> file_system_context_;
-  const GURL url_;
-  const uint64 range_offset_;
-  const uint64 range_length_;
-  const base::Time expected_modification_time_;
-
-  scoped_ptr<webkit_blob::FileStreamReader> stream_reader_;
-
-  uint64 stream_length_;
-  uint64 position_;
-
-  base::WeakPtrFactory<UploadFileSystemFileElementReader> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(UploadFileSystemFileElementReader);
-};
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_