Create fileapi/ subdirectory under c/b/cros/drive.

chrome/browser/chromeos/drive/file_system_backend_delegate.h

-// Copyright 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 CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_BACKEND_DELEGATE_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_BACKEND_DELEGATE_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
-
-namespace content {
-class BrowserContext;
-}  // namespace content
-
-namespace fileapi {
-class AsyncFileUtil;
-}  // namespace fileapi
-
-namespace drive {
-
-// Delegate implementation of the some methods in chromeos::FileSystemBackend
-// for Drive file system.
-class FileSystemBackendDelegate : public chromeos::FileSystemBackendDelegate {
- public:
-  // |browser_context| is used to obtain |profile_id_|.
-  explicit FileSystemBackendDelegate(content::BrowserContext* browser_context);
-  virtual ~FileSystemBackendDelegate();
-
-  // FileSystemBackend::Delegate overrides.
-  virtual fileapi::AsyncFileUtil* GetAsyncFileUtil(
-      fileapi::FileSystemType type) OVERRIDE;
-  virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
-      const fileapi::FileSystemURL& url,
-      int64 offset,
-      const base::Time& expected_modification_time,
-      fileapi::FileSystemContext* context) OVERRIDE;
-  virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter(
-      const fileapi::FileSystemURL& url,
-      int64 offset,
-      fileapi::FileSystemContext* context) OVERRIDE;
-
- private:
-  // The profile for processing Drive accesses. Should not be NULL.
-  void* profile_id_;
-  scoped_ptr<fileapi::AsyncFileUtil> async_file_util_;
-
-  DISALLOW_COPY_AND_ASSIGN(FileSystemBackendDelegate);
-};
-
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_BACKEND_DELEGATE_H_