Don`t use stat() on Windows, use a Unicode-safe Windows function instead

src/DefaultFileSystem.cpp

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2013 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 79 matching lines @@
 }
 
 FileSystem::StatResult DefaultFileSystem::Stat(const std::string& path) const
 {
   FileSystem::StatResult result;
 #ifdef WIN32
   WIN32_FILE_ATTRIBUTE_DATA data;
   if (!GetFileAttributesExW(NormalizePath(path).c_str(), GetFileExInfoStandard, &data))
   {
     DWORD err = GetLastError();
-    if (err == ERROR_FILE_NOT_FOUND || ERROR_PATH_NOT_FOUND || ERROR_INVALID_DRIVE)
+    if (err == ERROR_FILE_NOT_FOUND ||
+        err == ERROR_PATH_NOT_FOUND ||
+        err == ERROR_INVALID_DRIVE)
+    {
       return result;
+    }
     throw RuntimeErrorWithErrno("Unable to stat " + path);
   }
 
   result.exists = true;
   if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
   {
     result.isFile = false;
     result.isDirectory = true;
   }
   else
@@ skipping 65 matching lines @@
 void DefaultFileSystem::SetBasePath(const std::string& path)
 {
   basePath = path;
 
   if (*basePath.rbegin() == PATH_SEPARATOR)
   {
     basePath.resize(basePath.size() - 1);
   }
 }