[Media Router] Support dual discovery

chrome/common/media_router/discovery/media_sink_internal.cc

 // Copyright 2017 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/common/media_router/discovery/media_sink_internal.h"
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 
 namespace media_router {
@@ skipping 157 matching lines @@
 bool DialSinkExtraData::operator==(const DialSinkExtraData& other) const {
   return ip_address == other.ip_address && model_name == other.model_name &&
          app_url == other.app_url;
 }
 
 CastSinkExtraData::CastSinkExtraData() = default;
 CastSinkExtraData::CastSinkExtraData(const CastSinkExtraData& other) = default;
 CastSinkExtraData::~CastSinkExtraData() = default;
 
 bool CastSinkExtraData::operator==(const CastSinkExtraData& other) const {
-  return ip_address == other.ip_address && model_name == other.model_name &&
-         capabilities == other.capabilities &&
-         cast_channel_id == other.cast_channel_id;
+  return ip_address == other.ip_address && port == other.port &&
+         model_name == other.model_name && capabilities == other.capabilities &&
+         cast_channel_id == other.cast_channel_id &&
+         discovered_by_dial == other.discovered_by_dial;
 }
 
 }  // namespace media_router