Get rid of unnecessary chrome_main_ files now that most of the code has been removed from them. I...

chrome/app/chrome_main_mac.h

 // Copyright (c) 2011 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 CHROME_APP_CHROME_MAIN_H_
-#define CHROME_APP_CHROME_MAIN_H_
+#ifndef CHROME_APP_CHROME_MAIN_MAC_H_
+#define CHROME_APP_CHROME_MAIN_MAC_H_
 #pragma once
 
-#include "build/build_config.h"
-
-// See
-//   http://dev.chromium.org/developers/design-documents/startup
-// for a discussion of the various pieces involved in startup.
-// This header is for pulling some platform-specific initialization
-// parts out of chrome_main.cc and into chrome_main_*.cc.
-
 class FilePath;
 
-namespace chrome_main {
-
 // Checks if the UserDataDir policy has been set and returns its value in the
 // |user_data_dir| parameter. If no policy is set the parameter is not changed.
 void CheckUserDataDirPolicy(FilePath* user_data_dir);
 
-#if defined(OS_MACOSX)
 // Sets the app bundle (base::mac::MainAppBundle()) to the framework's bundle,
 // and sets the base bundle ID (base::mac::BaseBundleID()) to the proper value
 // based on the running application. The base bundle ID is the outer browser
 // application's bundle ID even when running in a non-browser (helper)
 // process.
 void SetUpBundleOverrides();
-#endif
 
-}  // namespace chrome_main
-
-#endif  // CHROME_APP_CHROME_MAIN_H_
+#endif  // CHROME_APP_CHROME_MAIN_MAC_H_