HTML MessagePort as mojo::MessagePipeHandle

content/public/android/java/src/org/chromium/content_public/browser/MessagePortService.java

-// 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.
-
-package org.chromium.content_public.browser;
-
-/**
- * An interface for creating and managing channels with {@link MessagePort}s on both ends.
- */
-public interface MessagePortService {
-    /**
-     * @return Two {@link MessagePort}s that forms the ends of a message channel created. The user
-     *         of the API should send one of these to the main frame of the tab that should be
-     *         receiving the messages and hold onto the other one.
-     */
-    MessagePort[] createMessageChannel();
-}