[MR] Add description field to MediaSink.

chrome/browser/media/router/media_router_type_converters_unittest.cc

Index: chrome/browser/media/router/media_router_type_converters_unittest.cc
diff --git a/chrome/browser/media/router/media_router_type_converters_unittest.cc b/chrome/browser/media/router/media_router_type_converters_unittest.cc
index 0f6d20ec647526dff0116b59e1b28d62c900db31..a0eedf6256dbc79d955d3f268043c2b84f2ed321 100644
--- a/chrome/browser/media/router/media_router_type_converters_unittest.cc
+++ b/chrome/browser/media/router/media_router_type_converters_unittest.cc
@@ -15,6 +15,7 @@ TEST(MediaRouterTypeConvertersTest, ConvertMediaSink) {
   interfaces::MediaSinkPtr mojo_sink(interfaces::MediaSink::New());
   mojo_sink->sink_id = "sinkId1";
   mojo_sink->name = "Sink 1";
+  mojo_sink->description = "description";
   mojo_sink->icon_type =
       media_router::interfaces::MediaSink::IconType::ICON_TYPE_CAST;
 
@@ -25,7 +26,8 @@ TEST(MediaRouterTypeConvertersTest, ConvertMediaSink) {
   // Convert MediaSink and back should result in identical object.
   EXPECT_EQ(expected_media_sink.name(), media_sink.name());
   EXPECT_EQ(expected_media_sink.id(), media_sink.id());
-  EXPECT_EQ(expected_media_sink.icon_type(), media_sink.icon_type());
+  EXPECT_FALSE(media_sink.description().empty());
+  EXPECT_EQ(expected_media_sink.description(), media_sink.description());
   EXPECT_EQ(expected_media_sink.icon_type(), media_sink.icon_type());
   EXPECT_TRUE(expected_media_sink.Equals(media_sink));
 }