Update client side navigator.connect API to use ServicePortCollection [2/3]

content/browser/navigator_connect/navigator_connect_dispatcher_host.h

-// Copyright 2014 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 CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_
-#define CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_
-
-#include "content/public/browser/browser_message_filter.h"
-
-class GURL;
-
-namespace content {
-
-class MessagePortMessageFilter;
-class NavigatorConnectContextImpl;
-struct NavigatorConnectClient;
-struct TransferredMessagePort;
-
-// Receives navigator.connect connection attempts from a child process.
-// Attempts to find a service that serves the URL the connection is made to
-// and sets up the actual connection.
-// Constructed on the UI thread, but all other methods are called on the IO
-// thread. Typically there is one instance of this class for each renderer
-// process, and this class lives at least as long as the renderer process is
-// alive (since this class is refcounted it could outlive the renderer process
-// if it is still handling a connection attempt).
-class NavigatorConnectDispatcherHost : public BrowserMessageFilter {
- public:
-  NavigatorConnectDispatcherHost(
-      const scoped_refptr<NavigatorConnectContextImpl>&
-          navigator_connect_context,
-      MessagePortMessageFilter* message_port_message_filter);
-
- private:
-  ~NavigatorConnectDispatcherHost() override;
-
-  // BrowserMessageFilter implementation.
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  // IPC Message handlers.
-  void OnConnect(int thread_id,
-                 int request_id,
-                 const NavigatorConnectClient& client);
-
-  // Callback called when the service worker finished handling the cross origin
-  // connection event.
-  void OnConnectResult(int thread_id,
-                       int request_id,
-                       const TransferredMessagePort& message_port,
-                       int message_port_route_id,
-                       bool accept_connection);
-
-  scoped_refptr<NavigatorConnectContextImpl> navigator_connect_context_;
-  MessagePortMessageFilter* const message_port_message_filter_;
-
-  DISALLOW_COPY_AND_ASSIGN(NavigatorConnectDispatcherHost);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_