Move CreateFIFO() and RedirectStream() from testing/android/ to base/android/.

base/android/fifo_utils.cc

+// Copyright (c) 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