Remove duplication of DieFileDie, and move it to proper location.

base/test_file_util_posix.cc

 // Copyright (c) 2009 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_file_util.h"
 
 #include <errno.h>
 #include <fts.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/string_util.h"
 
 namespace file_util {
 
+bool DieFileDie(const FilePath& file, bool recurse) {
+  // There is no need to workaround Windows problems on POSIX.
+  // Just pass-through.
+  return file_util::Delete(file, recurse);
+}
+
 bool CopyRecursiveDirNoCache(const std::wstring& source_dir,
                              const std::wstring& dest_dir) {
   const FilePath from_path(FilePath::FromWStringHack(source_dir));
   const FilePath to_path(FilePath::FromWStringHack(dest_dir));
 
   char top_dir[PATH_MAX];
   if (base::strlcpy(top_dir, from_path.value().c_str(),
                     arraysize(top_dir)) >= arraysize(top_dir)) {
     return false;
   }
@@ skipping 78 matching lines @@
   }
 
   if (error) {
     LOG(ERROR) << strerror(error);
     return false;
   }
   return true;
 }
 
 }  // namespace file_util