Cleanup: Remove deprecated version of file_util::AppendToPath().

base/test/test_file_util_win.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 "base/test/test_file_util.h"
 
 #include <aclapi.h>
 #include <shlwapi.h>
 #include <windows.h>
 
@@ skipping 158 matching lines @@
 bool CopyRecursiveDirNoCache(const FilePath& source_dir,
                              const FilePath& dest_dir) {
   // Try to create the directory if it doesn't already exist.
   if (!CreateDirectory(dest_dir)) {
     if (GetLastError() != ERROR_ALREADY_EXISTS)
       return false;
   }
 
   std::vector<std::wstring> files_copied;
 
-  std::wstring src(source_dir.value());
-  file_util::AppendToPath(&src, L"*");
+  FilePath src(source_dir.AppendASCII("*"));
 
   WIN32_FIND_DATA fd;
-  HANDLE fh = FindFirstFile(src.c_str(), &fd);
+  HANDLE fh = FindFirstFile(src.value().c_str(), &fd);
   if (fh == INVALID_HANDLE_VALUE)
     return false;
 
   do {
     std::wstring cur_file(fd.cFileName);
     if (cur_file == L"." || cur_file == L"..")
       continue;  // Skip these special entries.
 
     FilePath cur_source_path = source_dir.Append(cur_file);
     FilePath cur_dest_path = dest_dir.Append(cur_file);
@@ skipping 78 matching lines @@
 
 bool MakeFileUnreadable(const FilePath& path) {
   return DenyFilePermission(path, GENERIC_READ);
 }
 
 bool MakeFileUnwritable(const FilePath& path) {
   return DenyFilePermission(path, GENERIC_WRITE);
 }
 
 }  // namespace file_util