Add DiscoveryNetworkMonitor implementation

chrome/browser/media/router/discovery/discovery_network_list_win.cc

Index: chrome/browser/media/router/discovery/discovery_network_list_win.cc
diff --git a/chrome/browser/media/router/discovery/discovery_network_list_win.cc b/chrome/browser/media/router/discovery/discovery_network_list_win.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a18dd909e08d0d4920ef55d19483baf6c4342ec6
--- /dev/null
+++ b/chrome/browser/media/router/discovery/discovery_network_list_win.cc
@@ -0,0 +1,10 @@
+// Copyright (c) 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/discovery/discovery_network_list.h"
+
+// TODO(btolsch): Implement this for Windows.
+std::vector<DiscoveryNetworkInfo> GetDiscoveryNetworkInfoList() {
+  return std::vector<DiscoveryNetworkInfo>();
+}