content/common/quota_dispatcher_host.mojom

// Copyright 2017 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.

module content.mojom;

import "storage/common/quota/quota_types.mojom";
import "url/mojo/origin.mojom";

// API for the renderer process to request quota information from the browser
// process.
// TODO(sashab): Put callback parameters in an optional struct, only set on
// success.
// TODO(sashab): Remove origin_url and render_frame_id, moving this interface to
// be per-execution context instead of per-process.
// TODO(sashab): Move this API and the necessary types to WebKit/common/.
interface QuotaDispatcherHost {
  // Renderer process queries storage usage and quota from the browser process.
  QueryStorageUsageAndQuota(url.mojom.Origin origin,
                            storage.mojom.StorageType storage_type) =>
      (storage.mojom.QuotaStatusCode error,
       int64 current_usage,
       int64 current_quota);

  // Renderer process requests storage quota from the browser process.
  // render_frame_id is used for showing the permissions UI.
  RequestStorageQuota(int64 render_frame_id,
                      url.mojom.Origin origin,
                      storage.mojom.StorageType storage_type,
                      uint64 requested_size) =>
      (storage.mojom.QuotaStatusCode error,
       int64 current_usage,
       int64 granted_quota);
};