-Wunused-functions for linux, android, chromeos

chrome/app/chrome_main_delegate.cc

 // Copyright (c) 2012 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 "chrome/app/chrome_main_delegate.h"
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file_path.h"
 #include "base/i18n/rtl.h"
@@ skipping 287 matching lines @@
   raise(signal);
 }
 
 void SetUpProfilingShutdownHandler() {
   struct sigaction sigact;
   sigact.sa_handler = SIGTERMProfilingShutdown;
   sigact.sa_flags = SA_RESETHAND;
   sigemptyset(&sigact.sa_mask);
   CHECK(sigaction(SIGTERM, &sigact, NULL) == 0);
 }
-#endif
+#endif  // !defined(OS_MACOSX) && !defined(OS_ANDROID)
 
 #endif  // OS_POSIX
 
 struct MainFunction {
   const char* name;
   int (*function)(const content::MainFunctionParams&);
 };
 
 }  // namespace
 
@@ skipping 532 matching lines @@
 }
 
 content::ContentUtilityClient*
 ChromeMainDelegate::CreateContentUtilityClient() {
 #if defined(CHROME_MULTIPLE_DLL_BROWSER)
   return NULL;
 #else
   return &g_chrome_content_utility_client.Get();
 #endif
 }