[Media Router] Add MediaSink subtypes

chrome/browser/media/router/BUILD.gn

Index: chrome/browser/media/router/BUILD.gn
diff --git a/chrome/browser/media/router/BUILD.gn b/chrome/browser/media/router/BUILD.gn
index 5de0f258c9b9d071da32acc57bc6bdba3e4c9e43..24e6484439c8cd132cd4a301902ad06cf83eba1a 100644
--- a/chrome/browser/media/router/BUILD.gn
+++ b/chrome/browser/media/router/BUILD.gn
@@ -18,8 +18,12 @@ static_library("router") {
     "//url",
   ]
   sources = [
+    "cast_media_sink.cc",
+    "cast_media_sink.h",
     "create_presentation_connection_request.cc",
     "create_presentation_connection_request.h",
+    "dial_media_sink.cc",
+    "dial_media_sink.h",
     "issue.cc",
     "issue.h",
     "issue_manager.cc",
@@ -102,6 +106,17 @@ mojom("mojo_bindings") {
 
   public_deps = [
     "//mojo/common:common_custom_types",
+    "//url/mojo:url_mojom_gurl",
+  ]
+}
+
+mojom("mojo_test_interfaces") {
+  sources = [
+    "mojo/media_router_traits_test_service.mojom",
+  ]
+
+  public_deps = [
+    ":mojo_bindings",
   ]
 }
 
@@ -124,6 +139,7 @@ static_library("test_support") {
   if (!is_android) {
     deps += [
       ":mojo_bindings",
+      ":mojo_test_interfaces",
       "//extensions/common",
     ]
     sources += [