[Media Router] Add MediaSink subtypes

chrome/browser/media/router/media_sink.cc

Index: chrome/browser/media/router/media_sink.cc
diff --git a/chrome/browser/media/router/media_sink.cc b/chrome/browser/media/router/media_sink.cc
index 1e4892f7408b0a5b25d84d04df3ed6f48f7e9237..1749a6ce5966684cad0d6a92d5cb47739f241cdf 100644
--- a/chrome/browser/media/router/media_sink.cc
+++ b/chrome/browser/media/router/media_sink.cc
@@ -12,7 +12,13 @@ namespace media_router {
 MediaSink::MediaSink(const MediaSink::Id& sink_id,
                      const std::string& name,
                      const MediaSink::IconType icon_type)
-    : sink_id_(sink_id), name_(name), icon_type_(icon_type) {}
+    : MediaSink(sink_id, name, icon_type, MediaSink::SinkType::GENERIC) {}
+
+MediaSink::MediaSink(const MediaSink::Id& sink_id,
+                     const std::string& name,
+                     const MediaSink::IconType icon_type,
+                     const MediaSink::SinkType sink_type)
+    : type_(sink_type), sink_id_(sink_id), name_(name), icon_type_(icon_type) {}
 
 MediaSink::MediaSink(const MediaSink& other) = default;