[Media Router] Add DialMediaSinkService and DeviceDescriptionService

chrome/browser/media/router/media_sink_service.cc

Index: chrome/browser/media/router/media_sink_service.cc
diff --git a/chrome/browser/media/router/media_sink_service.cc b/chrome/browser/media/router/media_sink_service.cc
deleted file mode 100644
index 80f15a536d09855711b9bbabb2feb3e0c5c12690..0000000000000000000000000000000000000000
--- a/chrome/browser/media/router/media_sink_service.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// 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/browser/media/router/media_sink_service.h"
-
-namespace media_router {
-
-MediaSinkService::MediaSinkService(
-    const OnSinksDiscoveredCallback& sinks_discovered_callback)
-    : sinks_discovered_callback_(sinks_discovered_callback) {}
-
-MediaSinkService::~MediaSinkService() = default;
-
-}  // namespace media_router