Add Windows and Mac network list implementation

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

Index: chrome/browser/media/router/discovery/discovery_network_list_unittest.cc
diff --git a/chrome/browser/media/router/discovery/discovery_network_list_unittest.cc b/chrome/browser/media/router/discovery/discovery_network_list_unittest.cc
index c453d64ffc53b956f5fb8012e8c444bc7019ff7f..b54fa3d244a6b24ab96278c3563083bcc740eb29 100644
--- a/chrome/browser/media/router/discovery/discovery_network_list_unittest.cc
+++ b/chrome/browser/media/router/discovery/discovery_network_list_unittest.cc
@@ -8,6 +8,8 @@
 #include <iterator>
 #include <set>
 
+#include <iostream>  // XXX
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(DiscoveryNetworkListTest, GetDiscoveryNetworkInfoList) {
@@ -15,6 +17,7 @@ TEST(DiscoveryNetworkListTest, GetDiscoveryNetworkInfoList) {
   for (const auto& network_id : network_ids) {
     // We can't mock out the OS layer used by GetDiscoveryNetworkIdList, so
     // instead just check that each returned interface name is non-empty.
+    std::cout << network_id.name << ": " << network_id.network_id << std::endl;
     EXPECT_FALSE(network_id.name.empty());
   }