fileapi: Rename FileSystemMountProvider to FileSystemBackend

chrome/browser/chromeos/drive/mount_point_provider_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_MOUNT_POINT_PROVIDER_DELEGATE_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_MOUNT_POINT_PROVIDER_DELEGATE_H_
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "chrome/browser/chromeos/fileapi/cros_mount_point_provider_delegate.h"
-
-namespace fileapi {
-class ExternalMountPoints;
-}  // namespace fileapi
-
-namespace drive {
-
-// Delegate implementation of the some methods in CrosMountPointProvider
-// for Drive file system.
-class MountPointProviderDelegate
-    : public chromeos::CrosMountPointProviderDelegate {
- public:
-  explicit MountPointProviderDelegate(
-      fileapi::ExternalMountPoints* mount_points);
-  virtual ~MountPointProviderDelegate();
-
-  // CrosMountPointProvider::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;
-  virtual fileapi::FileSystemOperation* CreateFileSystemOperation(
-      const fileapi::FileSystemURL& url,
-      fileapi::FileSystemContext* context,
-      base::PlatformFileError* error_code) OVERRIDE;
-
- private:
-  scoped_refptr<fileapi::ExternalMountPoints> mount_points_;
-
-  DISALLOW_COPY_AND_ASSIGN(MountPointProviderDelegate);
-};
-
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_MOUNT_POINT_PROVIDER_DELEGATE_H_