storage/browser/quota/quota_disk_info_helper.h

// Copyright 2019 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.

#include "base/component_export.h"
#include "base/no_destructor.h"
#include "base/system/sys_info.h"

#ifndef STORAGE_BROWSER_QUOTA_QUOTA_DISK_INFO_HELPER_H_
#define STORAGE_BROWSER_QUOTA_QUOTA_DISK_INFO_HELPER_H_

namespace storage {

// A thread-safe wrapper class used to get total disk space. The class is
// subclassed in testing to mock the total disk space, thus allowing us to test
// experimental behavior in QuotaSettings. It is expected that
// QuotaDiskInfoHelper is instantiated in calls into QuotaSettings and owned
// by QuotaSettings.
class COMPONENT_EXPORT(STORAGE_BROWSER) QuotaDiskInfoHelper {
 public:
  QuotaDiskInfoHelper() = default;
  virtual ~QuotaDiskInfoHelper();

  virtual int64_t AmountOfTotalDiskSpace(const base::FilePath& path) const;

 private:
  DISALLOW_COPY_AND_ASSIGN(QuotaDiskInfoHelper);
};  // class QuotaDiskInfoHelper

}  // namespace storage

#endif  // STORAGE_BROWSER_QUOTA_QUOTA_DISK_INFO_HELPER_H_