Prototype of Files service.

services/files/futimens.h

Index: services/files/futimens.h
diff --git a/services/files/futimens.h b/services/files/futimens.h
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+// Copyright 2015 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.
+
+#ifndef SERVICES_FILES_FUTIMENS_H_
+#define SERVICES_FILES_FUTIMENS_H_
+
+#include <sys/stat.h>
+
+#include "build/build_config.h"
+
+// For Android: The NDK/C library we currently build against doesn't have
+// |futimens()|, but has |utimensat()|. Provide the former (in terms of the
+// latter) for now. Remove this file and futimens_android.cc when |futimens()|
+// becomes generally available (see
+// https://android-review.googlesource.com/#/c/63321/).
+
+#if defined(OS_ANDROID)
+extern "C" {
+
+int futimens(int fd, const struct timespec times[2]);
+
+}  // extern "C"
+#endif
+
+#endif  // SERVICES_FILES_FUTIMENS_H_