Upstream utilities for iOS

ios/chrome/test/run_all_unittests.cc

+// 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.
+
+#include "base/bind.h"
+#include "base/test/launcher/unit_test_launcher.h"
+#include "ios/chrome/test/ios_chrome_unit_test_suite.h"
+
+int main(int argc, char** argv) {
+  IOSChromeUnitTestSuite test_suite(argc, argv);
+  return base::LaunchUnitTests(
+      argc, argv,
+      base::Bind(&IOSChromeUnitTestSuite::Run, base::Unretained(&test_suite)));
+}