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

content/child/navigator_connect/navigator_connect_dispatcher.cc

-// 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.
-
-#include "content/child/navigator_connect/navigator_connect_dispatcher.h"
-
-#include "content/child/navigator_connect/navigator_connect_provider.h"
-#include "content/common/navigator_connect_messages.h"
-
-namespace content {
-
-NavigatorConnectDispatcher::NavigatorConnectDispatcher(ThreadSafeSender* sender)
-    : WorkerThreadMessageFilter(sender) {
-}
-
-NavigatorConnectDispatcher::~NavigatorConnectDispatcher() {
-}
-
-bool NavigatorConnectDispatcher::ShouldHandleMessage(
-    const IPC::Message& msg) const {
-  return IPC_MESSAGE_CLASS(msg) == NavigatorConnectMsgStart;
-}
-
-void NavigatorConnectDispatcher::OnFilteredMessageReceived(
-    const IPC::Message& msg) {
-  NavigatorConnectProvider::ThreadSpecificInstance(
-      thread_safe_sender(), main_thread_task_runner())->OnMessageReceived(msg);
-}
-
-bool NavigatorConnectDispatcher::GetWorkerThreadIdForMessage(
-    const IPC::Message& msg,
-    int* ipc_thread_id) {
-  return base::PickleIterator(msg).ReadInt(ipc_thread_id);
-}
-
-}  // namespace content