Avoids the use of ToWStringHack in a few places....

chrome/test/unit/chrome_test_suite.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 CHROME_TEST_UNIT_CHROME_TEST_SUITE_H_
 #define CHROME_TEST_UNIT_CHROME_TEST_SUITE_H_
 
 #include "build/build_config.h"
 
 #include <string>
@@ skipping 75 matching lines @@
     //       uses it, in order to ensure consistency.
     FilePath user_data_dir = FilePath::FromWStringHack(
         CommandLine::ForCurrentProcess()->GetSwitchValue(
             switches::kUserDataDir));
     if (user_data_dir.empty() &&
         file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("chrome_test_"),
                                           &user_data_dir)) {
       user_data_dir = user_data_dir.AppendASCII("test_user_data");
     }
     if (!user_data_dir.empty())
-      PathService::Override(chrome::DIR_USER_DATA,
-                            user_data_dir.ToWStringHack());
+      PathService::Override(chrome::DIR_USER_DATA, user_data_dir);
 
 #if defined(OS_MACOSX)
     FilePath path;
     PathService::Get(base::DIR_EXE, &path);
     path = path.AppendASCII(MAC_BROWSER_APP_NAME);
     mac_util::SetOverrideAppBundlePath(path);
 #endif
 
     // Force unittests to run using en-US so if we test against string
     // output, it'll pass regardless of the system language.
@@ skipping 32 matching lines @@
     TestSuite::Shutdown();
   }
 
   StatsTable* stats_table_;
   ScopedOleInitializer ole_initializer_;
   scoped_refptr<WarningHostResolverProc> host_resolver_proc_;
   net::ScopedDefaultHostResolverProc scoped_host_resolver_proc_;
 };
 
 #endif  // CHROME_TEST_UNIT_CHROME_TEST_SUITE_H_