[Presentation API] 1-UA presentation support + presenter APIs.

chrome/browser/media/router/media_router.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_ROUTER_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 15 matching lines @@
 
 // Type of callback used in |CreateRoute()| and |JoinRoute()|. Callback is
 // invoked when the route request either succeeded or failed.
 // On success:
 // |route|: The route created or joined.
 // |presentation_id|:
 //     The presentation ID of the route created or joined. In the case of
 //     |CreateRoute()|, the ID is generated by MediaRouter and is guaranteed to
 //     be unique.
 // |error|: Empty string.
+// |is_one_ua_presentation|: true if route is a 1-UA presentation.
 // On failure:
 // |route|: nullptr
 // |presentation_id|: Empty string.
 // |error|: Non-empty string describing the error.
+// |is_one_ua_presentation|: false.
 using MediaRouteResponseCallback =
     base::Callback<void(const MediaRoute* route,
                         const std::string& presentation_id,
-                        const std::string& error)>;
+                        const std::string& error,
+                        bool is_one_ua_presentation)>;
 
 // Used in cases where a tab ID is not applicable in CreateRoute/JoinRoute.
 const int kInvalidTabId = -1;
 
 // An interface for handling resources related to media routing.
 // Responsible for registering observers for receiving sink availability
 // updates, handling route requests/responses, and operating on routes (e.g.
 // posting messages or closing).
 class MediaRouter : public KeyedService {
  public:
@@ skipping 113 matching lines @@
 
   // Unregisters a previously registered PresentationSessionMessagesObserver.
   // |observer| will stop receiving further updates.
   virtual void UnregisterPresentationSessionMessagesObserver(
       PresentationSessionMessagesObserver* observer) = 0;
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_H_