[Media Router] Add MediaSink subtypes

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index 9072029d2cfffc7578cb9b50312c2b9e6e699022..987e5fd2f5a39398eb8041bb4b59f1331d2b184d 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -4380,6 +4380,7 @@ test("unit_tests") {
       "../browser/media/cast_remoting_connector_unittest.cc",
       "../browser/media/router/browser_presentation_connection_proxy_unittest.cc",
       "../browser/media/router/create_presentation_connection_request_unittest.cc",
+      "../browser/media/router/discovery/media_sink_internal_unittest.cc",
       "../browser/media/router/issue_manager_unittest.cc",
       "../browser/media/router/issue_unittest.cc",
       "../browser/media/router/media_route_unittest.cc",
@@ -4405,6 +4406,7 @@ test("unit_tests") {
         "../browser/media/router/media_router_ui_service_factory_unittest.cc",
         "../browser/media/router/mojo/media_router_mojo_impl_unittest.cc",
         "../browser/media/router/mojo/media_router_mojo_metrics_unittest.cc",
+        "../browser/media/router/mojo/media_router_struct_traits_unittest.cc",
         "../browser/ui/toolbar/media_router_action_controller_unittest.cc",
         "../browser/ui/toolbar/media_router_action_unittest.cc",
         "../browser/ui/toolbar/media_router_contextual_menu_unittest.cc",
@@ -4510,9 +4512,8 @@ test("unit_tests") {
       "//third_party/ocmock",
     ]
 
-    sources += [
-      "../browser/ui/cocoa/applescript/apple_event_util_unittest.mm",
-    ]
+    sources +=
+        [ "../browser/ui/cocoa/applescript/apple_event_util_unittest.mm" ]
 
     if (mac_views_browser) {
       # TODO(tapted): Add chrome_unit_tests_views_non_mac_sources.