Media Remoting: Data/Control plumbing between renderer and Media Router.

chrome/browser/media/router/media_routes_observer.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTES_OBSERVER_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTES_OBSERVER_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 20 matching lines @@
   // updated with the context of the |source_id|.  This will return a list of
   // |routes| and a list of |joinable_route_ids|.  A route is joinable only if
   // it is joinable in the context of the |source_id|.
   // Implementations may not perform operations that modify the Media Router's
   // observer list. In particular, invoking this observer's destructor within
   // OnRoutesUpdated will result in undefined behavior.
   virtual void OnRoutesUpdated(
       const std::vector<MediaRoute>& routes,
       const std::vector<MediaRoute::Id>& joinable_route_ids) {}
 
+  MediaRouter* router() const { return router_; }
   const MediaSource::Id source_id() const { return source_id_; }
 
  private:
   MediaRouter* const router_;
   const MediaSource::Id source_id_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRoutesObserver);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTES_OBSERVER_H_