[Media Router] Connection state change listening redesign part 2.

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 102 matching lines @@
   void ListenForSessionMessages(
       int render_process_id,
       int render_frame_id,
       const content::PresentationSessionInfo& session,
       const content::PresentationSessionMessageCallback& message_cb) override;
   void SendMessage(int render_process_id,
                    int render_frame_id,
                    const content::PresentationSessionInfo& session,
                    scoped_ptr<content::PresentationSessionMessage> message,
                    const SendMessageCallback& send_message_cb) override;
-  void ListenForSessionStateChange(
+  void ListenForConnectionStateChange(
       int render_process_id,
       int render_frame_id,
-      const content::SessionStateChangedCallback& state_changed_cb) override;
+      const content::PresentationSessionInfo& connection,
+      const content::PresentationConnectionStateChangedCallback&
+          state_changed_cb) override;
 
   // Callback invoked when a default PresentationRequest is started from a
   // browser-initiated dialog.
   void OnRouteResponse(const PresentationRequest& request,
                        const MediaRoute* route,
                        const std::string& presentation_id,
                        const std::string& error);
 
   // Adds / removes an observer for listening to default PresentationRequest
   // changes. This class does not own |observer|. When |observer| is about to
@@ skipping 66 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_