Remove unused PresentationServiceImpl message code

content/renderer/presentation/presentation_dispatcher_unittest.cc

 // Copyright 2017 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.
 
 #include <memory>
 #include <utility>
 
 #include "base/run_loop.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/renderer/presentation/presentation_connection_proxy.h"
@@ skipping 58 matching lines @@
   MOCK_METHOD1(StopListeningForScreenAvailability,
                void(const GURL& availability_url));
   MOCK_METHOD2(StartSession,
                void(const std::vector<GURL>& presentation_urls,
                     const StartSessionCallback& callback));
   MOCK_METHOD3(JoinSession,
                void(const std::vector<GURL>& presentation_urls,
                     const base::Optional<std::string>& presentation_id,
                     const JoinSessionCallback& callback));
 
-  // *Internal method is to work around lack of support for move-only types in
-  // GMock.
-  void SendConnectionMessage(
-      const PresentationSessionInfo& session_info,
-      ConnectionMessagePtr message_request,
-      const SendConnectionMessageCallback& callback) override {
-    SendConnectionMessageInternal(session_info, message_request.get(),
-                                  callback);
-  }
-  MOCK_METHOD3(SendConnectionMessageInternal,
-               void(const PresentationSessionInfo& session_info,
-                    ConnectionMessage* message_request,
-                    const SendConnectionMessageCallback& callback));
-
   MOCK_METHOD2(CloseConnection,
                void(const GURL& presentation_url,
                     const std::string& presentation_id));
   MOCK_METHOD2(Terminate,
                void(const GURL& presentation_url,
                     const std::string& presentation_id));
 
   MOCK_METHOD1(ListenForConnectionMessages,
                void(const PresentationSessionInfo& session_info));
 
@@ skipping 680 matching lines @@
 
   for (auto* mock_observer : mock_observers_)
     EXPECT_CALL(*mock_observer, availabilityChanged(false));
 
   base::RunLoop run_loop_2;
   ChangeURLState(gurl2_, URLState::Unavailable);
   run_loop_2.RunUntilIdle();
 }
 
 }  // namespace content