Move base to DEPS

base/test/test_file_util_linux.cc

-// Copyright (c) 2011 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 <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "base/files/file_path.h"
-#include "base/files/scoped_file.h"
-
-namespace base {
-
-bool EvictFileFromSystemCache(const FilePath& file) {
-  ScopedFD fd(open(file.value().c_str(), O_RDONLY));
-  if (!fd.is_valid())
-    return false;
-  if (fdatasync(fd.get()) != 0)
-    return false;
-  if (posix_fadvise(fd.get(), 0, 0, POSIX_FADV_DONTNEED) != 0)
-    return false;
-  return true;
-}
-
-}  // namespace base