[Media Router] Add DialMediaSinkService and DeviceDescriptionService

chrome/browser/media/router/discovery/dial/dial_device_data.cc

 // Copyright (c) 2012 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/media/router/discovery/dial/dial_device_data.h"
+#include "net/base/ip_address.h"
 
 namespace media_router {
 
 DialDeviceData::DialDeviceData() : max_age_(-1), config_id_(-1) {}
 
 DialDeviceData::DialDeviceData(const std::string& device_id,
                                const GURL& device_description_url,
                                const base::Time& response_time)
     : device_id_(device_id),
       device_description_url_(device_description_url),
       response_time_(response_time),
       max_age_(-1),
       config_id_(-1) {}
 
 DialDeviceData::DialDeviceData(const DialDeviceData& other) = default;
 
 DialDeviceData::~DialDeviceData() {}
 
 const GURL& DialDeviceData::device_description_url() const {
   return device_description_url_;
 }
 
 void DialDeviceData::set_device_description_url(const GURL& url) {
   device_description_url_ = url;
 }
 
 // static
 bool DialDeviceData::IsDeviceDescriptionUrl(const GURL& url) {
-  return url.is_valid() && !url.is_empty() && url.SchemeIsHTTPOrHTTPS();
+  if (!url.is_valid() || url.is_empty() || !url.SchemeIsHTTPOrHTTPS())
+    return false;
+
+  net::IPAddress address;
+  if (!net::ParseURLHostnameToAddress(url.host(), &address))
+    return false;
+
+  // TODO(crbug.com/679432): check that this IP address matches the address that
+  // we received the SSDP advertisement from.
+  return address.IsReserved();
 }
 
 bool DialDeviceData::UpdateFrom(const DialDeviceData& new_data) {
   DCHECK(new_data.device_id() == device_id_);
   DCHECK(new_data.label().empty());
   std::string label_tmp(label_);
   bool updated_api_visible_field =
       (new_data.device_description_url() != device_description_url_) ||
       (new_data.config_id() != config_id_);
   *this = new_data;
   label_ = label_tmp;
   return updated_api_visible_field;
 }
 
 DialDeviceDescriptionData::DialDeviceDescriptionData(
     const std::string& device_description,
     const GURL& app_url)
     : device_description(device_description), app_url(app_url) {}
 
 }  // namespace media_router