[Harmony Cast Dialog] Show domain as the status text for Hangout sinks

For Hangout sinks in the AVAILABLE state, show its domain as the status
text in the sink list.
Screenshot:
https://drive.google.com/open?id=1pOk8gsxW5MH8sUFJeg1WMLFanMtclPKv

Bug: 891087
Change-Id: I7faf94e4d89a03da8487264aae2aa73e95debb7c
Reviewed-on: https://chromium-review.googlesource.com/1258245
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#596307}

chrome/browser/ui/views/media_router/media_router_views_ui.cc

@@ -147,6 +147,10 @@ UIMediaSink MediaRouterViewsUI::ConvertToUISink(
                         : UIMediaSinkState::AVAILABLE;
     ui_sink.cast_modes = sink.cast_modes;
   }
+  if (ui_sink.icon_type == SinkIconType::HANGOUT &&
+      ui_sink.state == UIMediaSinkState::AVAILABLE && sink.sink.domain()) {
+    ui_sink.status_text = base::UTF8ToUTF16(*sink.sink.domain());
+  }
   if (issue && IssueMatches(*issue, ui_sink))
     ui_sink.issue = issue;
   return ui_sink;

chrome/browser/ui/views/media_router/media_router_views_ui.h

@@ -37,6 +37,7 @@ class MediaRouterViewsUI : public MediaRouterUIBase,
   FRIEND_TEST_ALL_PREFIXES(MediaRouterViewsUITest, ConnectingState);
   FRIEND_TEST_ALL_PREFIXES(MediaRouterViewsUITest, DisconnectingState);
   FRIEND_TEST_ALL_PREFIXES(MediaRouterViewsUITest, AddAndRemoveIssue);
+  FRIEND_TEST_ALL_PREFIXES(MediaRouterViewsUITest, ShowDomainForHangouts);
 
   // MediaRouterUIBase:
   void InitCommon(content::WebContents* initiator) override;

chrome/browser/ui/views/media_router/media_router_views_ui_unittest.cc

@@ -279,4 +279,39 @@ TEST_F(MediaRouterViewsUITest, AddAndRemoveIssue) {
   ui_->RemoveObserver(&observer);
 }
 
+TEST_F(MediaRouterViewsUITest, ShowDomainForHangouts) {
+  const std::string domain1 = "domain1.com";
+  const std::string domain2 = "domain2.com";
+  MediaSinkWithCastModes available_hangout(
+      MediaSink("sink1", "Hangout 1", SinkIconType::HANGOUT));
+  MediaSinkWithCastModes connected_hangout(
+      MediaSink("sink2", "Hangout 2", SinkIconType::HANGOUT));
+  available_hangout.sink.set_domain(domain1);
+  connected_hangout.sink.set_domain(domain2);
+  available_hangout.cast_modes = {MediaCastMode::TAB_MIRROR};
+  connected_hangout.cast_modes = {MediaCastMode::TAB_MIRROR};
+
+  MockControllerObserver observer;
+  ui_->AddObserver(&observer);
+  const std::string route_description = "route 1";
+  MediaRoute route(kRouteId, MediaSource(kSourceId), "sink2", route_description,
+                   true, true);
+  ui_->OnRoutesUpdated({route}, {});
+
+  // The domain should be used as the status text only if the sink is available.
+  // If the sink has a route, the route description is used.
+  EXPECT_CALL(observer, OnModelUpdated(_))
+      .WillOnce(WithArg<0>([&](const CastDialogModel& model) {
+        EXPECT_EQ(2u, model.media_sinks().size());
+        EXPECT_EQ(model.media_sinks()[0].id, available_hangout.sink.id());
+        EXPECT_EQ(base::UTF8ToUTF16(domain1),
+                  model.media_sinks()[0].status_text);
+        EXPECT_EQ(model.media_sinks()[1].id, connected_hangout.sink.id());
+        EXPECT_EQ(base::UTF8ToUTF16(route_description),
+                  model.media_sinks()[1].status_text);
+      }));
+  ui_->OnResultsUpdated({available_hangout, connected_hangout});
+  ui_->RemoveObserver(&observer);
+}
+
 }  // namespace media_router