Update from chromium 62675d9fb31fb8cedc40f68e78e8445a74f362e7

sandbox/linux/tests/test_utils.cc

+// Copyright 2014 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 "sandbox/linux/tests/test_utils.h"
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/posix/eintr_wrapper.h"
+
+namespace sandbox {
+
+bool TestUtils::CurrentProcessHasChildren() {
+  siginfo_t process_info;
+  int ret = HANDLE_EINTR(
+      waitid(P_ALL, 0, &process_info, WEXITED | WNOHANG | WNOWAIT));
+  if (-1 == ret) {
+    PCHECK(ECHILD == errno);
+    return false;
+  } else {
+    return true;
+  }
+}
+
+}  // namespace sandbox