Fixed file_version_info so that it finds Mac values correctly.

base/file_version_info.h

 // Copyright (c) 2006-2008 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 BASE_FILE_VERSION_INFO_H__
 #define BASE_FILE_VERSION_INFO_H__
 #pragma once
 
 #include <string>
 
 #include "build/build_config.h"
 
 class FilePath;
 
 // Provides an interface for accessing the version information for a file.
 // This is the information you access when you select a file in the Windows
 // explorer, right-click select Properties, then click the Version tab.
 
 class FileVersionInfo {
  public:
   virtual ~FileVersionInfo() {}
 #if defined(OS_WIN) || defined(OS_MACOSX)
   // Creates a FileVersionInfo for the specified path. Returns NULL if something
   // goes wrong (typically the file does not exit or cannot be opened). The
   // returned object should be deleted when you are done with it.
   static FileVersionInfo* CreateFileVersionInfo(const FilePath& file_path);
+#endif  // OS_WIN || OS_MACOSX
+
+#if defined(OS_WIN)
   // This version, taking a wstring, is deprecated and only kept around
   // until we can fix all callers.
   static FileVersionInfo* CreateFileVersionInfo(const std::wstring& file_path);
-#endif
+#endif  // OS_WIN
 
   // Creates a FileVersionInfo for the current module. Returns NULL in case
   // of error. The returned object should be deleted when you are done with it.
   static FileVersionInfo* CreateFileVersionInfoForCurrentModule();
 
   // Accessors to the different version properties.
   // Returns an empty string if the property is not found.
   virtual std::wstring company_name() = 0;
   virtual std::wstring company_short_name() = 0;
   virtual std::wstring product_name() = 0;
   virtual std::wstring product_short_name() = 0;
   virtual std::wstring internal_name() = 0;
   virtual std::wstring product_version() = 0;
   virtual std::wstring private_build() = 0;
   virtual std::wstring special_build() = 0;
   virtual std::wstring comments() = 0;
   virtual std::wstring original_filename() = 0;
   virtual std::wstring file_description() = 0;
   virtual std::wstring file_version() = 0;
   virtual std::wstring legal_copyright() = 0;
   virtual std::wstring legal_trademarks() = 0;
   virtual std::wstring last_change() = 0;
   virtual bool is_official_build() = 0;
 };
 
 #endif  // BASE_FILE_VERSION_INFO_H__