content/common/url_loader.mojom

// Copyright 2016 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;

[Native]
struct URLRequest;

[Native]
struct URLResponseHead;

[Native]
struct URLLoaderStatus;

interface URLLoader {
  // If the associated request has |auto_follow_redirects| set to false,
  // then upon receiving an URLResponse with a non-NULL |redirect_url| field,
  // |FollowRedirect| may be called to load the URL indicated by the redirect.
  FollowRedirect();

  // Cancels the request. The service will cancel loading, but there may be some
  // time lag and it is possible that the client gets some notification after
  // calling this method for a while.
  Cancel();
};

interface URLLoaderClient {
  // Called when the response head is received.
  OnReceiveResponse(URLResponseHead head);

  // Called when the loader starts loading response body.
  OnStartLoadingResponseBody(handle<data_pipe_consumer> body);

  // Called when the loading completes. No notification will be dispatched for
  // this client after this message arrives.
  OnComplete(URLLoaderStatus completion_status);
};