[Android] Redirect std{in,out,err} to sockets for layout tests.

base/android/fifo_utils.cc

-// Copyright 2013 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/android/fifo_utils.h"
-
-#include <sys/stat.h>
-
-#include "base/files/file_path.h"
-
-namespace base {
-namespace android {
-
-bool CreateFIFO(const FilePath& path, int mode) {
-  // Default permissions for mkfifo() is ignored, chmod() is required.
-  return mkfifo(path.value().c_str(), mode) == 0 &&
-         chmod(path.value().c_str(), mode) == 0;
-}
-
-bool RedirectStream(FILE* stream, const FilePath& path, const char* mode) {
-  return freopen(path.value().c_str(), mode, stream) != NULL;
-}
-
-}  // namespace android
-}  // namespace base