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

remoting/host/host_main.cc

Index: remoting/host/host_main.cc
diff --git a/remoting/host/host_main.cc b/remoting/host/host_main.cc
index 512bc645ebfbeecaa26ea589eaa838afe46b3f52..75ce6fdfba8a25be507eb9794fbb19812efe3ffe 100644
--- a/remoting/host/host_main.cc
+++ b/remoting/host/host_main.cc
@@ -36,11 +36,13 @@
 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";
@@ -126,29 +128,6 @@ int RunElevated() {
   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.