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

content/renderer/presentation/presentation_dispatcher.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 CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 #define CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 
 #include <queue>
 
 #include "base/compiler_specific.h"
@@ skipping 76 matching lines @@
 
   // RenderFrameObserver implementation.
   void DidCommitProvisionalLoad(
       bool is_new_navigation,
       bool is_same_page_navigation) override;
 
   // presentation::PresentationServiceClient
   void OnScreenAvailabilityNotSupported(const mojo::String& url) override;
   void OnScreenAvailabilityUpdated(const mojo::String& url,
                                    bool available) override;
-  void OnSessionStateChanged(
-      presentation::PresentationSessionInfoPtr session_info,
-      presentation::PresentationConnectionState new_state) override;
+  void OnConnectionStateChanged(
+      presentation::PresentationSessionInfoPtr connection,
+      presentation::PresentationConnectionState state) override;
   void OnSessionMessagesReceived(
       presentation::PresentationSessionInfoPtr session_info,
       mojo::Array<presentation::SessionMessagePtr> messages) override;
   void OnDefaultSessionStarted(
       presentation::PresentationSessionInfoPtr session_info) override;
 
   void OnSessionCreated(
       blink::WebPresentationConnectionClientCallbacks* callback,
       presentation::PresentationSessionInfoPtr session_info,
       presentation::PresentationErrorPtr error);
@@ skipping 48 matching lines @@
   // Updates the listening state of availability for |status| and notifies the
   // client.
   void UpdateListeningState(AvailabilityStatus* status);
 
   DISALLOW_COPY_AND_ASSIGN(PresentationDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_