Remove unused PresentationServiceImpl message code

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 85 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(PresentationServiceImplTest,
                            SetPresentationConnection);
   FRIEND_TEST_ALL_PREFIXES(PresentationServiceImplTest,
                            ReceiverPresentationServiceDelegate);
 
   // Maximum number of pending JoinSession requests at any given time.
   static const int kMaxNumQueuedSessionRequests = 10;
 
   using ConnectionMessagesCallback =
       base::Callback<void(std::vector<blink::mojom::ConnectionMessagePtr>)>;
-  using SendConnectionMessageCallback = base::Callback<void(bool)>;
 
   // Listener implementation owned by PresentationServiceImpl. An instance of
   // this is created when PresentationRequest.getAvailability() is resolved.
   // The instance receives screen availability results from the embedder and
   // propagates results back to PresentationServiceImpl.
   class CONTENT_EXPORT ScreenAvailabilityListenerImpl
       : public PresentationScreenAvailabilityListener {
    public:
     ScreenAvailabilityListenerImpl(const GURL& availability_url,
                                    PresentationServiceImpl* service);
@@ skipping 44 matching lines @@
   void SetDefaultPresentationUrls(
       const std::vector<GURL>& presentation_urls) override;
   void SetClient(blink::mojom::PresentationServiceClientPtr client) override;
   void ListenForScreenAvailability(const GURL& url) override;
   void StopListeningForScreenAvailability(const GURL& url) override;
   void StartSession(const std::vector<GURL>& presentation_urls,
                     const NewSessionCallback& callback) override;
   void JoinSession(const std::vector<GURL>& presentation_urls,
                    const base::Optional<std::string>& presentation_id,
                    const NewSessionCallback& callback) override;
-  void SendConnectionMessage(
-      const PresentationSessionInfo& session_info,
-      blink::mojom::ConnectionMessagePtr connection_message,
-      const SendConnectionMessageCallback& 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 PresentationSessionInfo& session_info) override;
   void SetPresentationConnection(
       const PresentationSessionInfo& session_info,
       blink::mojom::PresentationConnectionPtr controller_connection_ptr,
       blink::mojom::PresentationConnectionRequest receiver_connection_request)
@@ skipping 37 matching lines @@
       const PresentationSessionInfo& session_info);
   void OnStartSessionError(
       int request_session_id,
       const PresentationError& error);
   void OnJoinSessionSucceeded(
       int request_session_id,
       const PresentationSessionInfo& session_info);
   void OnJoinSessionError(
       int request_session_id,
       const PresentationError& error);
-  void OnSendMessageCallback(bool sent);
 
   // Calls to |delegate_| to start listening for state changes for |connection|.
   // State changes will be returned via |OnConnectionStateChanged|.
   void ListenForConnectionStateChange(
       const PresentationSessionInfo& connection);
 
   // Passed to embedder's implementation of PresentationServiceDelegate for
   // later invocation when session messages arrive.
   void OnConnectionMessages(
       const content::PresentationSessionInfo& session_info,
@@ skipping 53 matching lines @@
   std::unique_ptr<NewSessionCallbackWrapper> pending_start_session_cb_;
 
   // For JoinSession requests.
   base::hash_map<int, linked_ptr<NewSessionCallbackWrapper>>
       pending_join_session_cbs_;
 
   // RAII binding of |this| to an Presentation interface request.
   // The binding is removed when binding_ is cleared or goes out of scope.
   std::unique_ptr<mojo::Binding<blink::mojom::PresentationService>> binding_;
 
-  // There can be only one send message request at a time.
-  std::unique_ptr<SendConnectionMessageCallback> send_message_callback_;
-
-  std::unique_ptr<ConnectionMessagesCallback> on_connection_messages_callback_;
-
   // ID of the RenderFrameHost this object is associated with.
   int render_process_id_;
   int render_frame_id_;
 
   // 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_