Non-Local Join for Media Router and Presentation API

chrome/browser/ui/webui/media_router/media_router_ui.h

Index: chrome/browser/ui/webui/media_router/media_router_ui.h
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.h b/chrome/browser/ui/webui/media_router/media_router_ui.h
index 3d7859f49b6f38cd254d0cb1ab151d15100703db..e270eac08401b057a012560e54d43cc265157be2 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.h
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.h
@@ -94,6 +94,9 @@ class MediaRouterUI
   // completes.
   bool CreateRoute(const MediaSink::Id& sink_id, MediaCastMode cast_mode);
 
+  // Calls MediaRouter to join the given route.
+  bool JoinRoute(const MediaSink::Id& sink_id, const MediaRoute::Id& route_id);
+
   // Calls MediaRouter to close the given route.
   void CloseRoute(const MediaRoute::Id& route_id);
 
@@ -111,6 +114,9 @@ class MediaRouterUI
   const GURL& frame_url() const { return frame_url_; }
   const std::vector<MediaSinkWithCastModes>& sinks() const { return sinks_; }
   const std::vector<MediaRoute>& routes() const { return routes_; }
+  const std::vector<MediaRoute::Id>& joinable_route_ids() const {
+    return joinable_route_ids_;
+  }
   const std::set<MediaCastMode>& cast_modes() const { return cast_modes_; }
   const content::WebContents* initiator() const { return initiator_; }
 
@@ -120,18 +126,24 @@ class MediaRouterUI
  private:
   FRIEND_TEST_ALL_PREFIXES(MediaRouterUITest,
                            UIMediaRoutesObserverFiltersNonDisplayRoutes);
+  FRIEND_TEST_ALL_PREFIXES(MediaRouterUITest,
+      UIMediaRoutesObserverFiltersNonDisplayJoinableRoutes);
 
   class UIIssuesObserver;
+
   class UIMediaRoutesObserver : public MediaRoutesObserver {
    public:
     using RoutesUpdatedCallback =
-        base::Callback<void(const std::vector<MediaRoute>&)>;
-    UIMediaRoutesObserver(MediaRouter* router,
+        base::Callback<void(const std::vector<MediaRoute>&,
+            const std::vector<MediaRoute::Id>&)>;
+    UIMediaRoutesObserver(MediaRouter* router, const MediaSource::Id& source_id,
                           const RoutesUpdatedCallback& callback);
     ~UIMediaRoutesObserver() override;
 
     // MediaRoutesObserver
-    void OnRoutesUpdated(const std::vector<MediaRoute>& routes) override;
+    void OnRoutesUpdated(
+        const std::vector<MediaRoute>& routes,
+        const std::vector<MediaRoute::Id>& joinable_route_ids) override;
 
    private:
     // Callback to the owning MediaRouterUI instance.
@@ -150,7 +162,8 @@ class MediaRouterUI
   void SetIssue(const Issue* issue);
 
   // Called by |routes_observer_| when the set of active routes has changed.
-  void OnRoutesUpdated(const std::vector<MediaRoute>& routes);
+  void OnRoutesUpdated(const std::vector<MediaRoute>& routes,
+      const std::vector<MediaRoute::Id>& joinable_route_ids);
 
   // Callback passed to MediaRouter to receive response to route creation
   // requests.
@@ -201,6 +214,7 @@ class MediaRouterUI
 
   std::vector<MediaSinkWithCastModes> sinks_;
   std::vector<MediaRoute> routes_;
+  std::vector<MediaRoute::Id> joinable_route_ids_;
   CastModeSet cast_modes_;
   GURL frame_url_;