[mDns] Move dns_sd_registry from extension/api/mdns to media/router/discovery/mdns

chrome/browser/extensions/api/mdns/dns_sd_device_lister.cc

-// Copyright 2013 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 "chrome/browser/extensions/api/mdns/dns_sd_device_lister.h"
-
-#include "chrome/common/extensions/api/mdns.h"
-
-using local_discovery::ServiceDescription;
-
-namespace extensions {
-
-namespace {
-
-void FillServiceInfo(const ServiceDescription& service_description,
-                     DnsSdService* service) {
-  service->service_name = service_description.service_name;
-  service->service_host_port = service_description.address.ToString();
-  if (service_description.ip_address.IsValid()) {
-    service->ip_address = service_description.ip_address.ToString();
-  }
-  service->service_data = service_description.metadata;
-
-  VLOG(1) << "Found " << service->service_name << ", "
-           << service->service_host_port << ", "
-           << service->ip_address;
-}
-
-}  // namespace
-
-DnsSdDeviceLister::DnsSdDeviceLister(
-    local_discovery::ServiceDiscoveryClient* service_discovery_client,
-    DnsSdDelegate* delegate,
-    const std::string& service_type)
-    : delegate_(delegate),
-      device_lister_(this, service_discovery_client, service_type),
-      started_(false) {
-}
-
-DnsSdDeviceLister::~DnsSdDeviceLister() {
-}
-
-void DnsSdDeviceLister::Discover(bool force_update) {
-  if (!started_) {
-    device_lister_.Start();
-    started_ = true;
-    VLOG(1) << "Started device lister for service type "
-             << device_lister_.service_type();
-  }
-  device_lister_.DiscoverNewDevices(force_update);
-  VLOG(1) << "Discovery new devices for service type "
-           << device_lister_.service_type();
-}
-
-void DnsSdDeviceLister::OnDeviceChanged(
-    bool added,
-    const ServiceDescription& service_description) {
-  DnsSdService service;
-  FillServiceInfo(service_description, &service);
-  VLOG(1) << "OnDeviceChanged: "
-          << "service_name: " << service.service_name << ", "
-          << "added: " << added << ", "
-          << "service_type: " << device_lister_.service_type();
-  delegate_->ServiceChanged(device_lister_.service_type(), added, service);
-}
-
-void DnsSdDeviceLister::OnDeviceRemoved(const std::string& service_name) {
-  VLOG(1) << "OnDeviceRemoved: "
-          << "service_name: " << service_name << ", "
-          << "service_type: " << device_lister_.service_type();
-  delegate_->ServiceRemoved(device_lister_.service_type(), service_name);
-}
-
-void DnsSdDeviceLister::OnDeviceCacheFlushed() {
-  VLOG(1) << "OnDeviceCacheFlushed: "
-          << "service_type: " << device_lister_.service_type();
-  delegate_->ServicesFlushed(device_lister_.service_type());
-  device_lister_.DiscoverNewDevices(false);
-}
-
-}  // namespace extensions