[PresentationSevice] Use PresentationConnection to send messages from

content/browser/presentation/presentation_service_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 CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <memory>
@@ skipping 62 matching lines @@
   void StopListeningForScreenAvailability(const GURL& url) override;
   void StartPresentation(const std::vector<GURL>& presentation_urls,
                          NewPresentationCallback callback) override;
   void ReconnectPresentation(const std::vector<GURL>& presentation_urls,
                              const base::Optional<std::string>& presentation_id,
                              NewPresentationCallback callback) override;
   void CloseConnection(const GURL& presentation_url,
                        const std::string& presentation_id) override;
   void Terminate(const GURL& presentation_url,
                  const std::string& presentation_id) override;
-  void ListenForConnectionMessages(
-      const PresentationInfo& presentation_info) override;
   void SetPresentationConnection(
       const PresentationInfo& presentation_info,
       blink::mojom::PresentationConnectionPtr controller_connection_ptr,
       blink::mojom::PresentationConnectionRequest receiver_connection_request)
       override;
 
  private:
   friend class PresentationServiceImplTest;
   FRIEND_TEST_ALL_PREFIXES(PresentationServiceImplTest, Reset);
   FRIEND_TEST_ALL_PREFIXES(PresentationServiceImplTest, ThisRenderFrameDeleted);
@@ skipping 187 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<PresentationServiceImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PresentationServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_