mac: Prepare most test code for -Wunused-functions too.

remoting/host/host_main.cc

 // Copyright (c) 2013 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.
 //
 // This file implements the common entry point shared by all Chromoting Host
 // processes.
 
 #include "remoting/host/host_main.h"
 
 #include <string>
@@ skipping 18 matching lines @@
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_WIN)
 #include <commctrl.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
 
 namespace remoting {
 
 // Known entry points.
+int HostProcessMain();
+#if defined(OS_WIN)
 int DaemonProcessMain();
 int DesktopProcessMain();
 int ElevatedControllerMain();
-int HostProcessMain();
 int RdpDesktopSessionMain();
+#endif  // defined(OS_WIN)
 
 const char kElevateSwitchName[] = "elevate";
 const char kProcessTypeSwitchName[] = "type";
 
 const char kProcessTypeController[] = "controller";
 const char kProcessTypeDaemon[] = "daemon";
 const char kProcessTypeDesktop[] = "desktop";
 const char kProcessTypeHost[] = "host";
 const char kProcessTypeNativeMessagingHost[] = "native_messaging_host";
 const char kProcessTypeRdpDesktopSession[] = "rdp_desktop_session";
@@ skipping 65 matching lines @@
 
   if (!ShellExecuteEx(&info)) {
     DWORD exit_code = GetLastError();
     LOG_GETLASTERROR(ERROR) << "Unable to launch '" << binary.value() << "'";
     return exit_code;
   }
 
   return kSuccessExitCode;
 }
 
-#else  // !defined(OS_WIN)
-
-// Fake entry points that exist only on Windows.
-int DaemonProcessMain() {
-  NOTREACHED();
-  return kInitializationFailed;
-}
-
-int DesktopProcessMain() {
-  NOTREACHED();
-  return kInitializationFailed;
-}
-
-int ElevatedControllerMain() {
-  NOTREACHED();
-  return kInitializationFailed;
-}
-
-int RdpDesktopSessionMain() {
-  NOTREACHED();
-  return kInitializationFailed;
-}
-
 #endif  // !defined(OS_WIN)
 
 // Select the entry point corresponding to the process type.
 MainRoutineFn SelectMainRoutine(const std::string& process_type) {
   MainRoutineFn main_routine = NULL;
 
   if (process_type == kProcessTypeHost) {
     main_routine = &HostProcessMain;
 #if defined(OS_WIN)
   } else if (process_type == kProcessTypeDaemon) {
@@ skipping 101 matching lines @@
   if (exit_code == kUsageExitCode) {
     Usage(command_line->GetProgram());
   }
 
   remoting::UnloadResources();
 
   return exit_code;
 }
 
 }  // namespace remoting