[Media Router] 2nd take on fix route response callback lifetime in UI.

chrome/browser/media/router/presentation_service_delegate_impl.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_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 85 matching lines @@
   void SendMessage(
       int render_process_id,
       int render_frame_id,
       scoped_ptr<content::PresentationSessionMessage> message_request,
       const SendMessageCallback& send_message_cb) override;
   void ListenForSessionStateChange(
       int render_process_id,
       int render_frame_id,
       const content::SessionStateChangedCallback& state_changed_cb) override;
 
-  // Callback invoked when a |route| has been created or joined outside of a
-  // Presentation API request. The route could be due to
+  // Callback invoked when there is a route response from CreateRoute/JoinRoute
+  // outside of a Presentation API request. This could be due to
   // browser action (e.g., browser initiated media router dialog) or
   // a media route provider (e.g., autojoin).
-  void OnRouteCreated(const MediaRoute& route);
+  void OnRouteResponse(const MediaRoute* route, const std::string& error);
 
   // Returns the default MediaSource for this tab if there is one.
   // Returns an empty MediaSource otherwise.
   MediaSource default_source() const { return default_source_; }
 
   content::WebContents* web_contents() const { return web_contents_; }
   const GURL& default_frame_url() const { return default_frame_url_; }
 
   // Observer interface for listening to default MediaSource changes for the
   // WebContents.
@@ skipping 32 matching lines @@
   // Returns |listener|'s presentation URL as a MediaSource. If |listener| does
   // not have a persentation URL, returns the tab mirroring MediaSource.
   MediaSource GetMediaSourceFromListener(
       content::PresentationScreenAvailabilityListener* listener);
 
   void OnJoinRouteResponse(int render_process_id,
                            int render_frame_id,
                            const content::PresentationSessionInfo& session,
                            const PresentationSessionSuccessCallback& success_cb,
                            const PresentationSessionErrorCallback& error_cb,
-                           scoped_ptr<MediaRoute> route,
+                           const MediaRoute* route,
                            const std::string& error_text);
 
   void OnStartSessionSucceeded(
       int render_process_id,
       int render_frame_id,
       const PresentationSessionSuccessCallback& success_cb,
       const content::PresentationSessionInfo& new_session,
       const MediaRoute::Id& route_id);
 
   // Returns |true| if the frame is the main frame of |web_contents_|.
@@ skipping 22 matching lines @@
   scoped_ptr<PresentationFrameManager> frame_manager_;
 
   base::WeakPtrFactory<PresentationServiceDelegateImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PresentationServiceDelegateImpl);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_